How do you calculate the number of grams in 0.032000 moles?

2 Answers
Feb 5, 2017

Answer:

You can calculate the number of molecules.............

Explanation:

You cannot calculate the mass of the molecules on the basis of the given information.

The mole is simple a number, i.e. #N_A=6.022xx10^23*mol^-1#. This has the property that #N_A# #""^12C# atoms have a mass of #12.00*g# precisely. The mole is thus the link between the sub-micro world of atoms and molecules, with the macro world of grams and kilograms and litres and cubic metres. Capisce?

#"Number of molecules"=6.022xx10^23*mol^-1xx0.032000*mol=????????#

#"Mass of molecules is unknown..........."#

Feb 5, 2017

Answer:

Multiply by the molar mass (or molecular weight).

Explanation:

For example, if you consider methane #CH_4# the molecular weight is 16 g/mol. So 0.032 moles equates to 0.032 x 16 = 0.512 g