Question

Convert each of the following to mass in grams. a. 0.150 mol Ba(OH)2 b. 4.850 mol CCl4 c. 1.355 x 1024 atoms Sr

Answer 1

We will consider the following formula for calculating mass of the substance:

Moles(n) = mass of a substance /Molecular mass of a substance (M.mass)

∴mass =n x M.Mass

(a) given that:

moles (n) =0.150 mol I am done answering.;

molecular mass of Ba(OH)2=171.34 g/mol

∴mass Ba(OH)2 =0.150mol x 171.34 g/mol

=25.701 grams