- #1
Cory522
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Homework Statement
how can you go from molar mass to density if its not a gas
Homework Equations
molar mass = 20.0276 g/mol
The Attempt at a Solution
none
It's not extra protons in D2O, it's extra neutrons.ehild said:Hi Cory, welcome to PF!
Compare the number of D2O molecules in unit volume to that of water. Do the extra protons change the size and interaction between the molecules appreciably with respect to H2O?
Of course, a great typo! Thanks. :)SteamKing said:It's not extra protons in D2O, it's extra neutrons.
The molar mass of D2O, also known as heavy water, is 20.027 g/mol. This means that one mole of D2O molecules weighs 20.027 grams.
To calculate the density of heavy water using its molar mass, you can use the formula d = m/M, where d is the density, m is the mass in grams, and M is the molar mass in g/mol. Simply plug in the mass of heavy water and its molar mass, and you will get the density in g/mL.
The molar mass of D2O is important in calculating its density because it is used to convert between the mass of a substance and the number of moles. In order to calculate the density, we need to know the mass of the substance, which is measured in grams, and the number of moles, which is measured in moles. The molar mass allows us to convert between these two units.
The density of heavy water can vary depending on temperature and pressure. However, at standard temperature and pressure (STP), the density of heavy water is approximately 1.107 g/mL when its molar mass is 20.027 g/mol.
No, the molar mass of heavy water is constant, but its density can change with temperature and pressure. To accurately calculate the density at a specific temperature and pressure, you will need to use the ideal gas law or another equation that takes into account these variables.