Answers
Molarity as Stoikiometri
Level : SHSEquatuions od Molarity :
M = m/Mr × 1000/V
Mr Lithium Dichromate (Li2CrO4)
= Ar Li (2) + Ar Cr + Ar O (4)
= 7 (2) + 52 + 16 (4)
= 14 + 52 + 64
= 130 g/mol
Molarity
= m/Mr × 1000/V
= 19.5 g/130 g/mol × 1000/95 mL
= 0.15 mol × 10.53 /L
= 1.5795 mol/L
So, the molarity of the solution is 1.5795 mol/L
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Related Questions
What is the goal of the metric system
Answers
Answer:
One goal of the metric system is to have a single unit for any physical quantity; a second important goal is to minimize the use of conversion factors when making calculations with physical quantities.
Explanation:
Hope this helps.
The accepted value of Ksp is 1.2×10−12 for Ag2CrO4. Calculate the percentage error if your experimentally determined value for Ksp was 1.5×10−10.
Answers
The percentage error in the experimental determination is 124%.
The experimentally determined value for Ksp = 1.5×10^−10
The accepted value of Ksp = 1.2 × 10^−12
The formula for percentage error is;
% error = absolute value of ( actual value - experimental value)/actual value × 100/1
% error = absolute value of (1.2 × 10^−12 - 1.5×10^−10)/ 1.2 × 10^−12 × 100/1
% error = 124%
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The tides of the oceans and large lakes that occur on Earth are caused by_______
The gravitational pull from the moon and sun
The earth’s rotation
Answers
Answer:
The gravitational pull from the moon and sun
Explanation:
Answer: gravity
Explanation:
Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996).
How would a descriptive model of Earth's layers be categorized?
a. abstract model
b. prototype model
c. concrete model
d. conceptual model
Answers
The Earth can be divided into one of two ways – mechanically or chemically. Mechanically – or rheological, meaning the study of liquid states – it can be divided into the lithosphere, asthenosphere, mesospheric mantle, outer core, and the inner core.
Explanation:
please help with this!
Answers
Answer:
d) The object falls towards the ground
Explanation:
Yo can someone explain the heat of fusion and heat of vaporization thing to me?
Answers
Answer:
The heat of fusion is the amount of energy required to change a solid into a liquid at its melting point. When a liquid becomes a solid, freezing or solidification has occurred. The heat of vaporization is the energy required to change a liquid into a gas at its boiling point.
Explanation:
Use the periodic table to answer the question.
A chemical reaction produces a molecule in which all of the atoms have a stable configuration. Which molecule could be the product of the reaction?
(1 point)
SiO
PH3
MgBr
KCl2
Answers
The product of this reaction is PH3. All of the atoms in PH3 have a stable configuration.
According to the octet rule, atoms are stable when they have two or eight electrons around their outermost shell. A stable configuration is one in which the outermost shell is fully filled with eight electrons.
The reason behind chemical combination is to enable atoms attain this stable configuration. If we look at the compound, PH3, we will notice that phosphorus has eight electrons around its outermost shell while each hydrogen atom has two electrons around its outermost shell hence all of the atoms have a stable configuration.
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Answer:ph3
Explanation:yeah
3. What is the picture displayed? *
1 point
a.atom
b.molecule
c.element
d.compound
Answers
molecule (hope this helps :))
Which location is Georgia experiencing fall in the diagram above?
Location A
Location B
Location B
Location D
Answers
Answer:
Location A
Explanation:
Answer:
location d
Explanation:
What tiles should I put in the box?
Answers
Answer:
true&answe
Explanation:
r.
3. How are elements on the periodic table
arranged? sc.8.P.8.6
A atomic mass
B atomic number
© chemical symbol
D state of matter
no
Answers
how many atoms of hydrogen are present in a molecule of methane, CH 4
Answers
Answer: One methane molecule, CH4, contains one carbon atom and four hydrogen atoms.
Explanation:
1. Your parents go through McDonalds drive-thru and get you a Big Mac and Coke. You
take the lid off your Coke because it is too full and you need to sip some of the Coke so
it won't spill. After doing so, you forget to put the lid on. Then, a car pulls out in front of
you and your mom yells, "Look out!" You hold your cup still so it won't spill. However,
the coke still spills out. Describe which of Newton's laws you can contribute this to and
why. (textbook pg. 334)
Answers
Answer:
because theres a force called gravity
Explanation:
Write the chemical formula for the ionic compound formed by lithium and fluorine.
Answers
Answer:
→ LiF
Explanation:
[tex]{ \rm{2Li _{(s)} + F _{2(g)} \dashrightarrow \: 2LiF _{(s)} }}[/tex]
Answer:
[tex]Lithium⟼Li+Fluorine⟼F=LiF[/tex]
A solar eclipse occurs during the day and can occur only during what phase of the moon?
New moon
Full moon
Answers
Answer:
New moon
Explanation:
Answer:
it is new moon
Explanation: im just smart like that
What trophic level has heterotrophs?
a only the second level
b all levels except the first
C only the first level
d only the last level
Answers
What is the quantum mechanical electron configuration of arsenic?
Answers
Answer:
After the 4s sublevel is filled with two electrons, ten electrons fill the 3d sublevel, which is slightly higher in energy than the 4s sublevel. After the 3d sublevel is filled, the remaining three electrons will be in orbitals in the 4p sublevel. Thus, the electron configuration for arsenic is [Ar] 4s(2 squared) 3d(10 squared) 4p(3 squared).
Hope this
Helps
You
which chemical formal shows an ionic compound? A. CO2 B.N 2 O C.NaCI D.C6 H12 O6
Answers
Answer:
B
N2O
Explanation:
maybe
d can also be lol
Find the sum of the
following:
89.001 + 0.0001 + 348.4 +
49166
Answers
Answer: 49,603.4011
Explanation:
Answer:
49603.4011
Explanation:
89.001
+. 0.0001
348.4
49166
answer: 49603.4011
What is an ionic bond?
A. A bond that forms when electrons are transferred from one atom to another
B. A bond that forms when the electrons of two different atoms repel each other
C. A bond that forms when two atoms with neutral charges come close to one another
D. A bond that forms when one atoms nucleus comes close to another atoms electrons
Please answer!!! No links please!!!
Answers
Answer:
A. A bond that forms when electrons are transferred from one atom to another
[tex].[/tex]
Answer:
A. A bond that forms when electrons are transferred from one atom to another
Which of the following would have more inertia than a car:
A)a person
B)airplane
C)skateboard
D)bicycle
PLEASE HELP
Answers
How are energy and work related?
O A. Work and energy are the same.
B. Work times energy is force.
C. Energy is the force needed to do work.
D. Energy is the capacity to do work.
SUBMI
Answers
Answer:
c
Explanation:
because u need the energy to be able to work
Suppose a solution has a pOH of 5.3. What is the concentration of hydronium ion, H3O+, in the solution?
Answers
The concentration of hydronium ion, H3O+, in the solution with pOH of 5.3 is 1.99 × 10-⁹M.
HOW TO CALCULATE HYDROGEN CONCENTRATION:
The pOH of a solution is given as 5.3. The pH of this solution can be calculated as follows:pOH + pH =145.3 + pH = 14pH = 14 - 5.3 = 8.7pH = 8.7.The hydrogen ion concentration can be calculated by using the following expression:[H+] = 10-pH[H+] = 10-⁸.⁷[H+] = 1.99 × 10-⁹MTherefore, the concentration of hydronium ion, H3O+, in the solution with pOH of 5.3 is 1.99 × 10-⁹M.
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Nitroglycerine, used to treat patients with angina, is prescribed for a patient by IV at a rate of 2.10 x 102 ug/min. The IV bag
contains 50. mg nitroglycerine/250 mL D5W. How many milliliters per hour should the patient receive?
Answers
Given the flow rate and the amount of nitroglycerine contained in the IV bag, the patient should receive 63 milliliters per hours.
Rate of prescribed dose by IV: [tex]2.10*10^2 ug/min = 210ug/min[/tex]
Available: [tex]50mg nitroglycerine = 50000ug[/tex]
Available Volume: [tex]150mL[/tex]
Hence, [tex]50000ug = 250ml[/tex]
and volume for [tex]210ug = x[/tex]
We cross multiply to find x
[tex]x = \frac{210ug * 250mL}{50000ug} \\\\x = 1.05mL[/tex]
Meaning that in a single minute, 1.05mL is been infused into the patient
Now, for an hour, ( 60 minutes ) the volume infused will be;
[tex]1min = 1.05mL[/tex]
[tex]60min = x[/tex]
We cross multiply to find x
[tex]x = \frac{1.05mL*60min}{1min}\\\\x = 63mL[/tex]
Therefore, given the flow rate and the amount of nitroglycerine contained in the IV bag, the patient should receive 63 milliliters per hours.
Learn more; https://brainly.com/question/7303677
PLEASE HELP ME WITH THIS I ONLY HAVE 8 MINUTES I will give you extra points . THANK YOUU
Answers
Which of the following is a unit of length? O A. A liter O B. A kilogram C. A meter O D. A degree
Answers
Answer:
C.) A meter
Explanation:
How are Fahrenheit temperatures converted to Celsius temperatures?
subtract 273 from the original number
multiply the number by 95 and then add 32
subtract 32 and then multiply that number by 59
add 273 to the original number
Answers
Answer:
subtract 32 and then multiply that number by 5/9
Explanation:
i took the test on k12
Answer:
multiply the number by 95 and then add 32
Explanation:
i took the test
which of the following oxides will react with magnesium most readily when both are heated?
A.zinc oxide
B. copper(2) oxide
C.lead (2) oxide
D. aluminum oxide
Answers
Answer:
None of the above
Explanation:
• This is because all the metal oxides provided are below magnesium in the reactivity series.
[ pic attached ]
[tex].[/tex]
an ionic compound, salt is a hard, crystalline substance in which the______and_______ions are lined up in a regular pattern
A. polar, nonpolar
B. red,blue
C. right,left
D. positive, negative
PLEASE ONLY GIVE CORRECT ANSWERS!! I WILL GIVE BRAINLIEST
Answers
Answer:
An ionic compound, salt is a hard, crystalline substance in which the positive and negative ions are lined up in a regular pattern.
Explanation:
What are the subatomic particles of an atom, and where are they located in the atom? Be specific.
Answers
Answer:
120
Explanation:
just took test
