Question

How many molecules of hydrogen chloride would there be in 100. 00 grams of this gas? please help

Answer 1

9.5 * 10^23 molecules of HCl

Explanation:

just a note this might be better to put in the chem section next time since this is a stoichiometry question

the molar mass of HCL is 1.007 + 35.45 = 65.457 g/mol

to find the number of moles, divide 100 by 65.457

then multiply the number of moles by 6.22 * 10^23 to get the number of molecules

`100.00g * (1 mol)/(65.457g) * (6.22 * 10^(23) molecules )/(1 mol) = 9.502 * 10^(23) molecules`

Answer 2

There are 2.74266105043 molecules in 100 grams of HCL.