When you purchase 0.500 gallon of milk, 7.89mL of milk are there in the container
Unit of liquid capacity equal to four quarts or 231 cubic inches or 3.785 liters called gallon. here 1 gallon = 3.785 l and you purchase 0.500 gallon so multiply the no of cubit feet by 7.47 then and here
volume is 8 then 8×7.47=59.76 so
1 gallon = 3.785=59.76÷3.785=15.78
15.78×0.0500gallon=7.89ml
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How much energy is needed to raise the temperature of 2g of water 5°C
Answer:this case, the mass is 2.0g, the specific heat capacity of water is 4.18J/g/K, and the change in temperature is 5.0°C=5K , therefore the energy needed to raise it is: 5×2×4.18=41.8J
Explanation:
What type of reaction occurs when two hydrogen atoms collide at high speed, combining together into a helium atom?
Alpha decay
Beta decay
Fission
Fusion
Answer:
Fusion.
Explanation: fusion is a nuclear reaction in which smaller atoms fuse together to form heavier elements. This describes the fusion of hydrogen into helium.
Hat is the average mass of a manganese atom, given in amu and in kg? please do a unit conver- sion to calculate the mass in kg from the mass in amu
The average mass of a manganese atom is 54.94 amu or 9.12 x 10⁻²⁶ kg.
One unified atomic mass unit is approximately the mass of one nucleon (proton or neutron).
The unified atomic mass unit (amu) is a standard unit of atom mass.
One unified atomic mass unit is approximately the mass of the one nucleon (1.66·10⁻²⁷ kg)
Ar(Mn) = 54.94 amu; a relative atomic mass of manganese atom
m(Mn) = Ar(Mn) x 1.66·10⁻²⁷ kg
m(Mn) = 54.94 x 1.66·10⁻²⁷ kg
m(Mn) = 91.2 x 1.66·10⁻²⁷ kg
m(Mn) = 9.12 x 10⁻²⁶ kg; the average mass of a manganese atom
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2.what is the purpose of the sodium sulfate? (1 pt) why did you rinse the sodium sulfate with an additional portion of methylene chloride?
To ensure that the 9-Fluorenone was totally dry, it had to be washed with methylene chloride. To make sure that methylene chloride is present in a pure solution, sodium sulfate binds to water and precipitates.
What is the purpose of the sodium sulfate?Although it has numerous additional uses, sodium sulfate is primarily employed in the production of detergents and in the Kraft process of paper pulping. The decahydrate's natural mineral form, mirabilite, accounts for about half of the world's output, with the other half coming from chemical byproducts. Sodium sulfate was used as a drying, isolating, and anhydrous salt for the 9-fluorenone.To make sure that methylene chloride is present in a pure solution, sodium sulfate binds to water and precipitates.The sodium salt of sulfuric acid is known as sodium sulfate. Na2SO4 is the chemical formula for sodium sulfate. The mineral thenardite, which is also known as anhydrous sulfate, is described as a white, crystalline solid, whereas the decahydrate Na2SO4. 10H2O is also known as Glauber's salt or the mirabilis salt.
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The formula for potassium permanganate is K3MnO4. In this formula, how many potassium ions are present?
1
2
3
4
Answer:
the potassium permanganate formula is KMnO₄
Explanation:
Potassium permanganate, also known as permanganate of potash or Condy's crystals, is a chemical compound consisting of two ions: a potassium ion and a permanganate ion.
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The formula of potassium permagnet is KMnO₄, Therefore there is only one potassium ion is present in potassium permagnet.
What is ion ?An atom with a negative electrical charge is known as an ion. Generally, the charge of an electron is considered to be negative,this charge is equal to and equivalent to the charged of a proton, which is thought to be positive.
When an atom's number of protons and electrons is out of balance, ions are created. As a result, an atom that has acquired or lost one or more electrons and thus has a positive or negative charge is said to be an ion.
Potassium permanganate is made up of one potassium atom ( K ), one manganese atom ( Mn ), and four oxygen atoms, according to its chemical formula ( O ).
Therefore there is only one potassium ion is present in potassium permagnet.
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