Question

The mass of 0.0321 moles of Ca (CN)2

Answer 1

The mass of Ca(CN)2 : 92,11 g/mol

Further explanation

Given

0.0321 moles of Ca(CN)2

Required

The mass

Solution

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

mol(n) = mass(m) : MW(molecular weight)

Input the value :

mass = mol x MW Ca (CN)2

mass =  0.0321 x 92,11 g/mol

mass = 2.957 g