Question

if 2 mol of Calcium Carbonate (Formula Weight =100) occupies a volume of 67.0 ml, Find the density ?​

Answer 1

29.850

Explanation:

massdensity=mass/volume

=2000/67.0

=29.850

Answer 2

2.98 g/ml

given mole- 2 mol

molecular formula- 100g

we know that,

no. of moles=given mass/molecular mass

therefore, 2×100= mass

hence, mass=200g

then , density= mass /volume

=> density= 200/67

=> density= 2.98 g/ml

therefore density = 3g/ml