if ammonia is fed to a continuous reactor at a rate of 100.0 kmol nh3/h
175 Kmol/h is oxygen the fed rate that corresponds to 40% excess O₂.
Given chemical reaction is
4NH₃ + 5O₂ → 4NO + 6H₂O
The molecular weight of NH₃ is 17.03, O₂ is 32, NO is 30, and, H₂O is 18.
To find the ratio,
Ratio = lb-mole O₂ react / lb-mole NO formed
Or, ratio = 5/4
Or, ratio = 1.25
NH₃ fed rate = 100 Kmol/h
We have to find out whether the Oxygen fed rate corresponds to 40% excess O₂.
For each 4 Kmol of NH₃, 5 Kmol of O₂ is required.
4 Kmol of NH₃ ≡ 5 Kmol of O₂
100 Kmol of NH₃ ≡ 125 Kmol of O₂
So, 125 Kmol of O₂ is required for 100 Kmol of NH₃.
For 40% excess of O₂, the required Kmol is = 125 + 125 × 40%
The required Kmol of oxygen is 175 Kmol/h for excess of O₂.
To learn more about ammonia(NH₃) and oxygen(O₂), visit: https://brainly.com/question/20923890
#SPJ4
HELP!! ASAP!! PLEASE!!
The pictured compound has which bond?
C = C and C −H
uppercase C double bond uppercase C and uppercase C single bond uppercase H,
C −Cand C −H
uppercase C single bond uppercase C and uppercase C single bond uppercase H,
C = C and C −C
uppercase C double bond uppercase C and uppercase C single bond uppercase C,
C −C, C −H, and C −O
The bonds that are present in the pictured compound are C −C and C −H.
What is a bond?A bond is that which connects two atoms together. We know that a compound is composed of bonds. There are a number of bonds in a compound. The bonds are always as many as the atoms that need to be linked in the compound.
We know that butane a shown in the image is an alkane. An alkane has carbon - carbon and hydrogen - carbon bonds. There are no multiple bonds in the compound butane.
Thus, the bonds that are present in the pictured compound are C −C and C −H.
Learn more about chemical bond:https://brainly.com/question/15444131
#SPJ1
In Niels Bohr's model of the atom, electrons move like _____ orbiting the _____.
Answer:
protons and neutrons
Explanation:
because Neil bohr had described this is his theory
Answer:
hope this help
Explanation:
In Bohr's model, electrons moved around the atomic nucleus in circular orbits, but those orbits had set discrete energies, and electrons could gain or lose energy only by moving from one orbit to another, absorbing or emitting radiation as necessary.
What type of molecule is shown below?
Answer:
It is an alkene
Explanation:
First, this is a hydrocarbon because it has only carbons and hydrogens. Second, we see the C=C which is a double bond. Double bonds between carbons make it an alkene.
Which pair of elements do you expect to be most similar?
a. mo and sn cl and f si and p k and sr n and ni
Among the pair of elements given, Cl and F are expected to be the most similar.
On the basis of periodic table,
Cl and F are in the same group which is the halogen group. Thus, they possess similar properties.Of the choices provided, Chlorine (Cl) and Fluorine (F) are the only pair located in the same group while the others belong to different groups in periodic table.
Nitrogen have symbol N and belongs to main group element while Nickel have symbol Ni and belong to transition element. Therefore, they are not similar.
Molybdenum have symbol Mo belongs to transition element and Tin have symbol Sn belongs to main group element possessing different properties.
Sodium have symbol Na and classified as alkali metal while Magnesium have symbol Mg, classified as alkaline earth metals. They do no have similar properties.
Silicon having symbol Si is a metalloid while Phosphorus having symbol P is a non-metal. Thus, they are not similar.
To learn more about the elements,
https://brainly.com/question/26380812
#SPJ4
A 33.9g sample of lead is placed in a graduated cylinder containing 20.0mL of water.
The lead sinks to the bottom. If the density of lead is 11.4g/cm³, what will the final
volume read on the graduated cylinder?
The correct answer for the final volume read on the graduated cylinder = 4.72 ml ^3 .
density of lead is 11.4g/cm³,
quantity of water = 20.0 mL = 20 gram
sample of lead = 33.9 g
density = mass / volume
total mass = 20+ 33.9 = 53.9
volume = mass/ density
volume = 53.9/ 11.4
volume = 4.72 ml ^3
Graduated cylinders are long, slender vessels used to measure liquid volumes. They are not meant to be mixed, stirred, heated, or weighed. Graduated cylinders typically range in size from 5 mL to 500 mL. It is a tall narrow container with a volume scale used specifically for measuring liquids. These 100 mL glass graduated cylinders are used to accurately and easily measure and dilute liquids! These class-A, lab-quality graduates are built to deliver precise measurements while resisting breakage and a wide range of chemicals. A plastic volume marker is included.
Learn more about graduated cylinder here :-
https://brainly.com/question/14427988
#SPJ9
Which is the best carbon-14 radioisotope-labeled compound to add to a cell culture as a means for tracking the products of transcription?
Best carbon-14 radioisotope-labeled compound to add to a cell culture as a means for tracking the products of transcription 14C ribose.
Carbon-14, the longest-lived radioactive isotope of carbon, whose decay allows the accurate dating of archaeological artifacts. C-14 is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.it is mostly found in atmospheric carbon dioxide because that is where it is constantly being produced by collisions between nitrogen atoms and cosmic rays.
Know more about carbon-14 radioisotope.
https://brainly.com/question/28500187
#SPJ4
The reaction of benzaldehyde with acetone and sodium hydroxide produces ____________ This is an example of ____________ reaction.
The reaction of benzaldehyde with acetone and sodium hydroxide produces DibenzalacetoneThis is an example of an aldol condensation reaction.
A physical reaction is a reaction in which a change in the physical properties of matter or substances occurs. Physical properties include density, mass, and volume. The definition of a physical reaction is a reaction in which molecules undergo molecular rearrangements but do not change chemically.
A response, although technically a reaction, takes into account the desired outcome of the interaction. Reactions can produce positive or negative results, but reactions are designed to produce positive or negative results. To react is emotional, to react is emotional intelligence.
Learn more about the reaction here
https://brainly.com/question/11231920
#SPJ4
Jimmy runs fast, but he wants to run faster. He sees a commercial for a new type of sneaker that says they can make you run faster and jump higher because of how they are made. Jimmy goes and buys the new sneakers and then times how long it takes him to run one mile in his new sneakers. The next day, he puts his old sneakers back on and times how long it takes him to run one mile in his old sneakers. In his old sneakers he ran the mile in 8 minutes and 12 seconds. In his new sneakers he ran the mile in 7 minutes and 46 seconds. what is the hypothisis
How many grams of glucose (c6h2o6 molecular mass =180 daltons) would be present in one liter of a 1 m (molar) solution of glucose?
There are 180 grams of glucose in 1 liter of a 1 M solution.
What do we know about glucose?Blood sugar, often known as glucose, is the main sugar found in your blood. It comes from the food you eat and is used as your body's main energy source. Your blood supplies glucose to all of the cells in your body, which then uses it as fuel.
Diabetes is a disorder when your blood sugar levels are too high.
moles = volume x molarity
moles = 1 L x 1 mol/L = 1 mol
mass = moles x molecular weight
mass = 1 mol x 180 g/mol = 180 g(we know that 180 daltons = 180 g/mol)
Therefore, 1 litre of a 1 M solution has 180 grammes of glucose.
to learn more about glucose go to -
https://brainly.com/question/7224754
#SPJ4
There are 180 grams of glucose in 1 liter of a 1 M solution.
Calculating:
moles = volume x molarity moles
= 1 L x 1 mol/L = 1 mole mass
= moles x molecular weight mass
= 1 mol x 180 g/mol = 180 g(we know that 180 daltons = 180 g/mol)
Therefore, 1 litre of a 1 M solution has 180 grams of glucose
What can we know about glucose?
Blood sugar, often referred to as glucose, is that the main sugar found in your blood. It comes from the food you eat and is employed as your body's main energy source. Your blood supplies glucose to all or any of the cells in your body, which then uses it as fuel.
Diabetes may be a disorder when your blood sugar levels are too high..
Learn more about glucose:
brainly.com/question/397060
#SPJ4
What is the name for a material with a free electron in its valence ring that allows electricity to flow freely?
Answer:
conductor
Explanation:
What is the main precaution to take if a gas cylinder sign is present in the lab? select one
The main precautions to take if a gas cylinder sign is present in the lab visually check that the gas cylinder is restrained, but keep a safe distance from it. The correct option is c.
What are the precautions?Precautions are the preventive steps that are taken to save yourself from any dangerous circumstances. These steps are always taken in doing experiments and other scientific procedures.
Here, the precautions are to check the gas cylinder.
Thus, the correct option is c, Visually check that the gas cylinder is restrained, but keep a safe distance from it.
To learn more about precautions, refer to the link:
https://brainly.com/question/15622844
#SPJ4
The question is incomplete. Your most probably complete question is given below:
Remove the strap from around the gas cylinder to use it in the lab.
Open the valve on the gas cylinder periodically to release pressure.
Visually check that the gas cylinder is restrained, but keep a safe distance from it.
Test out the regulator on the gas cylinder to make sure it is working properly.
How many potassium ions are in 5.66 g of potassium sulfate: k2so4 (mw. 174.27 g/mol)?
There would be 3.91 ×10²² potassium ions in 5.66 g of potassium sulfate.
What is a molecule?A molecule is the smallest unit of a substance that retains its composition and properties. It is made up of two or more atoms that are joined together by chemical bonds.
The number of moles of the k2so4 = mass/molecular mass
=5.66 /174.27
=0.032478 moles
The number of the potassium ion in k2so4 = 2 ×0.032478×6.022 ×10²³
=3.91 ×10²² ions
There would be 3.91 ×10²² potassium ions in 5.66 g of potassium sulfate.
Learn more about molecules from here,
brainly.com/question/28060128
#SPJ4
A chemical reaction in which bonds are created is usually associated with ________.
A reaction in which bonds are created is usually associated with the Release of energy.
What are the various types of bonds?
There are three sorts of bonds:
1. Electrovalent or electrovalent bond
2. chemical bond
3. dative bond
Electrovalent or electrovalent bond are formed when one or more electrons are transferred from one atom to another.
Covalent bonds are formed when the atoms during a molecule share an equal number of electrons.
A dative bond is one in which both electrons in a shared pair come from the same atom.
Now, atoms tend to stabilize once they form chemical bonds, releasing energy within the process. Energy is released because there's a higher level of stability associated with a low energy level.
Hence, a reaction in which bonds are created is usually associated with the release of energy.
To know more about chemical bonds go to the given link:
https://brainly.com/question/20584851
#SPJ4
How many isomers of which type can be drawn to represent the chemical formula c5h12?.
3 structural isomers can be drawn to represent the chemical formula C5H12.
When two or more organic compounds have the same molecular formula but different structures, they are said to be structural isomers, also referred to as constitutional isomers. The two molecules below share the same chemical formula, however they are distinct due to variations in the methyl group's placement.
It is an alkane, C5H12. There are 2 to the power (n-4)+1 isomers of an alkane, where n is the number of carbon atoms. Therefore, there are three structural isomers that might exist for C5H12 using the formula. They are methyl butane, n-pentane, and isopentane (dimethyl propane).
Here is another question with an answer similar to this about structural isomers: https://brainly.com/question/4482665
#SPJ4
how many grams of iron will be needed to react completely with an excess of oxygen to form 40 grams of iron oxide ?
Answer:
28g Fe
Explanation:
source: https://www.answers.com/Q/How_many_grams_of_iron_will_be_needed_to_react_completely_with_an_excess_of_oxygen_to_form_40_grams_of_iron3_oxide
When the difference between a measured value and the known value is expressed as percentage error, it is usually written as
When the difference between a measured value and the known value is expressed as a percentage error, it is usually written as either negative or positive.
How do introduce differences in measured values?The accepted terminology to introduce differences in measured values during experimentation and data collection is to introduce this difference with the sing based on the first data (either positive or negative).
In conclusion, when the difference between a measured value and the known value is expressed as a percentage error, it is usually written as either negative or positive.
Learn more about how to denote measured values here:
https://brainly.com/question/2416787
#SPJ1
Discuss two properties of the atomic structure of copper that make it a good conductor.
The two properties of the atomic structure of copper that make it a good conductor is:
In copper, there is enough heat energy at ordinary room temperatures to liberate a vast number of weakly held valence electrons. The presence of a large number of free electrons in copper, as in other metals, is what makes it a good conductor of electricity.In copper, at normal room temperature, there is enough thermal energy to eject a large number of weakly held valence electrons. Like other metals, copper has a large number of free electrons, which makes it a good conductor of electricity.
In order for current to flow through metal, the current source must fight resistance. The lower the resistivity, the higher the electrical conductivity of the metal. Copper wire is also a good electrical conductor due to its low resistivity.
Other materials sometimes used as conductors are silver, gold, and aluminum. Copper is still the most popular material for wire because it is a very good conductor of electricity and is very cheap compared to gold and silver.
Learn more about good conductor here;
https://brainly.com/question/11845176
#SPJ4
How long has it been that scientists have accepted that the nucleus of the atom consists of neutrons and protons?
About a century ago, in 1911, Rutherford discovered the atomic nucleus, then in 1919, he witnessed the proton.
For a long time, people believed that Atom was the final particle and the building block of every other component in the universe. However, in the year 1911, Rutherford's atomic model depicting the presence of nucleus shattered the argument that atom is the ultimate unbreakable particle.
Rutherford's experiment also approved that there must be more than just protons in the nucleus. For example, it was previously known that helium had an atomic number of 2, but a mass number of 4.
To know more about nucleus, refer to brainly.com/question/12602839
#SPJ4
Does your melting point obtained for your product indicate that your sample is indeed benzoin or hydrobenzoin?
The melting points of the products obtained ranged from 135 to 137, indicating that the compound is probably benzoin since the melting points of the products are very similar to those of benzoin (135 to 137). The melting point range of benzoin is closer to the product than that of hydroxybenzoic acid.
Benzoin is the sap (gum resin) that comes from cuts withinside the trunk of bushes that belong to the Styrax family. Benzoin is used at the pores and skin for ulcers, mattress sores (strain ulcers), cracked pores and skin, and lots of different conditions, however, there may be no correct medical proof to aid those uses.
Benzoin is on occasion referred to as gum benzoin or gum benjamin, and in India Sambrani or loban, aleven though loban is, thru Arabic lubān, a frequent time period for frankincense-kind incense, e.g., aromatic tree resin. Benzoin is likewise referred to as storax, now no longer to be harassed with the balsam of the equal call acquired from the Hamamelidaceae family.
Learn more about Benzoin here;
https://brainly.com/question/24448358
#SPJ4
What are functionalized hydrocarbons? cite an example of a functionalized hydrocarbon
In functionalized hydrocarbons, a functional group is attached to the core of hydrocarbons (alkanes, alkenes, alkynes). Some examples are methanol (where the hydroxyl group is attached to methane) and it belongs to the chemical class of alcohols.
In organic chemistry, hydrocarbons are organic compounds made entirely of hydrogen and carbon. Hydrocarbons are examples of Group 14 hydrides. Hydrocarbons are generally colorless and hydrophobic, and their odor is usually faint or exemplified by the liquid odor of gasoline or lighters.
Examples of hydrocarbons include gasoline, kerosene, lamp oil, and furniture oil. If someone accidentally drinks a hydrocarbon product that gets into their lungs, it can cause breathing problems. Severe injury or even death can result. Crude oil is a mixture of relatively volatile liquid hydrocarbons (compounds composed primarily of hydrogen and carbon), but it also contains nitrogen, sulfur, and oxygen.
Learn more about hydrocarbons here
https://brainly.com/question/3551546
#SPJ4
ASAPPP MAKE SURE ITS NOT COPY N PASTE PLS
Ions are any molecules that have a charge. (positive or negative.) Group 1 atoms have 1 valence electron, so their ions are formed by giving away one electron. Group 7 atoms have 7 valence electrons, so their ions are formed by gaining one electron. This process gives the atom a full shell of 8, which makes it stabilized.
During the breakdown of fatty acids, not all acetyl coa enters the citric acid cycle, and your body converts some acetyl coa to?
During the breakdown of fatty acids, not all acetyl CoA enters the citric acid cycle, and your body converts some acetyl CoA to ketone bodies.
Acids are molecules or ions that can donate protons, known as Bronsted-Lowry acids, or form covalent bonds with electron pairs, known as Lewis acids. The first category of acids is proton donors or Brønsted-Lowry acids.
Blood is normally slightly alkaline, with a normal pH range of about 7.35 to 7.45. Normally, the body keeps blood pH near 7.40. Doctors measure a person's acid-base balance by measuring the pH of the blood and the levels of carbon dioxide (acid) and bicarbonate (base). No oil is either an acid or a base. Neutral. Oil is a neutral, nonpolar chemical. That is, it is a viscous liquid at room temperature. It is immiscible with water, but soluble in alcohol and ether.
Learn more about acid here
https://brainly.com/question/25148363
#SPJ4
Does the density of an object change if only the volume changes? Why or why not?
Yes, the density of an object change if only the volume changes because density is an intensive property.
What is density?Density is the measure of the mass of matter contained by a unit volume.
This suggests that the density of a substance is a function of the mass and volume of the substance.
However, an increase in volume decreases the overall density of an object, making it float.
Therefore, yes, the density of an object change if only the volume changes because density is an intensive property.
Learn more about density at: https://brainly.com/question/15164682
#SPJ1
Nitrogen gas is the major component of air. a sample of nitrogen gas in a glass bulb weighs 243 mg. what is this mass in si base units of mass (kilograms)?
Nitrogen gas is the major component of air. a sample of nitrogen gas in a glass bulb weighs 243 mg. 2.43 × 10-4 kg is this mass in si base units of mass (kilograms).
Nitrogen, or N, using its scientific abbreviation, is a colorless, odorless element. Nitrogen is in the ground under our feet, in the water we drink, and in the air, we breathe. In fact, nitrogen is the most abundant element in the Earth's atmosphere, with approximately 78% of the atmosphere being composed of nitrogen.
Nitrogen is commonly used during sample preparation for chemical analysis. Used to concentrate and reduce the volume of liquid samples. Nitrogen is also important for the chemical industry. It is used in the production of fertilizers, nitric acid, nylon, dyes, and explosives*. Exposure to very high concentrations of pure nitrogen can cause dizziness, drowsiness, displacing oxygen from the air, unconsciousness, and death.
Learn more about nitrogen here
https://brainly.com/question/1380063
#SPJ4
what are 3 main ways an object can accelerate
Answer:
There are following three ways in which a object can accelerate....
1...speeding up
2.... slowing down
3... changing direction
hope it help you✌✌✌✌✌
Explanation:
Adding earthworms to a compost pile typically increases the rate at which the organic
matter in the pile decomposes. A learner wonders whether adding other organisms to the
compost pile will have a similar effect on the rate of decomposition. She decides to an-
swer this question by performing an experiment.
Formulate a valid hypothesis that the learner could test in her experiment.
Based on this hypothesis, identify the independent variable and dependent variables for the
learner's experiment.
..
.
Compost
In the experiment performed on the compost:
A valid hypothesis for this experiment is: Adding living organisms to compost increases its rate of decomposition.The independent variable are the types of living organisms added to the compostThe dependent variable is the rate of decomposition of compostWhat is are variables in an experiment?Variables in an experiment are factors that are under the control of the researcher and which brings about changes in the result of the experiment.
There are three types of variables in an experiment, they are;
Independent variableDependent variableConstant variableThe independent variable is the variable which affects the result of the experiment by controlling the dependent variable.
The dependent variable changes as a result of changes in the independent variable.
The constant variable is kept constant or unchanged by the researcher.
Considering the experiment performed on the compost:
A valid hypothesis for this experiment is: Adding living organisms to compost increases its rate of decomposition.The independent variable are the types of living organisms added to the compostThe dependent variable is the rate of decomposition of compostLearn more about dependent and independent variables at: https://brainly.com/question/25223322
#SPJ1
Ionic compounds are different from covalent compounds because they do not share electrons is it true or false
Ionic compounds are formed from ionic bonds which occur when there is electron transfer, while covalent compounds share electrons. Hence, the answer is true.
What are covalent compounds?Covalent compounds are compounds formed by covalent bonds. Atoms form compounds to achieve a stable electronic configuration. Covalent compounds do this by sharing their electrons. Covalent bonds are weaker than ionic compounds and mostly form gases.
What are ionic compounds?Ionic compounds achieve the stable electronic configuration of noble gases by gaining or giving away their electrons. When this happens, the atoms get attracted to each other by electrostatic forces. Atoms that give away their electrons become positively charged cations and atoms that receive electrons become negatively charged anions.
Therefore, the major difference between ionic compounds and covalent compounds is that covalent compounds share electrons and ionic compounds transfer electrons.
Learn more about ionic compounds here:
https://brainly.com/question/7655594
#SPJ4
An oxygen molecule at 25◦C has a speed of
about 678 meters per second. Express this
speed in miles/hour. (1 mi = 5280 ft)
1. 0.000659 miles/hour
2. 0.421 miles/hour
3. 0.000117 miles/hour
4. 2440000 miles/hour
5. 9780 miles/hour
6. 15200 miles/hour
7. 1520 miles/hour
An oxygen molecule at 25◦C has a speed of 1520 miles/hour.
Equation :As we know
1 km = 1000 meter
So,
678 / 1000 = 0.678 km
And 1 mile = 1.6 km
So,
0.678 / 1.609 = 0.4213 miles
We know that 1 hour = 60×60 = 3600 sec
So,
1 sec = 1 / 3600
= 2.777 x 10⁻⁴ hour
Now finding speed,
speed = distance / time
speed = 0.4213 / 2.777 x 10⁻⁴
speed = 1520 miles/hour
What is speed ?Velocity is the rate and direction of an object's movement, whereas speed is the time rate at which an object is moving along a path. In other words velocity is a vector value, whereas speed is a scalar value.
To know more about molecule :
https://brainly.com/question/1446104
#SPJ9
A 0.50-quart jar contains 2.0 pounds of honey. what is the density of the honey in g/ml?
A 0.50-quart jar contains 2.0 pounds of honey. 1.9 g/ml is the density of the honey.
Population density (in agriculture, forest stand, or plant density) is a measure of population per unit area or, exceptionally, per unit volume. It is a quantity of type number density. It applies to living things in general, mainly humans. It's an important geographical term. Simply put, population density is the number of people living per square kilometer.
Urban populations, especially urban areas, strongly depend on the definition of "urban area" used. It is almost always denser only in the center than when it includes suburban settlements and intervening rural areas, such as agglomerations and metropolitan areas. Area (the latter may include neighboring cities).
Learn more about density here
https://brainly.com/question/1354972
#SPJ4
if 45.98 g of sodium combines with an excess of chloride gas to form 116.89 g of sodium chloride, what mass of chlorine gas is used in the reaction
The ionic compound sodium chloride, also referred to as salt, has the chemical formula NaCl, which denotes a 1:1 ratio of the ions sodium and chloride. The molar weights of 39.34 g Na and 60.66 g Cl in 100 g of NaCl are 22.99 and 35.45 g/mol, respectively.
If 45.98 g of sodium combines with an excess of chloride gas to form 116.89 g of sodium chloride, what mass of chlorine gas is used in the reaction?
116.89 g – 45.98 = 70.91 g of chlorine must have been used.
The characteristics of sodium and chlorine are as follows:
Water and sodium react violently.The gas chlorine is toxic.Soft and silvery-white sodium metal.Metals are corrosive to chlorine gas.The characteristics of the chemical sodium chloride are as follows:
in water dissolves.Non-poisonous.both crystalline and whiteIn light of this, it may be said that sodium chloride possesses wholly unique properties from those of sodium and chlorine.
To know more about Sodium Chloride, click on the link below:
https://brainly.com/question/14248836
#SPJ9
