How many moles of carbon disulfide ( CS2 ) are in 47.5 g of the compound?

Answer 1

To find moles from grams use moles = mass/molar mass

First, look on the periodic table to find the molar mass of C (12.01) and of S (32.07). Add them together 14.01+ 32.07 +32.07 = 76.15 grams/mol

Then divide given mass by the molar mass

47.5/ 76.15= 0.625 moles of CS2 (rounded to 3 significant figures)

Answer 2

moles = mass / molar mass

Moles of CS₂ = 47.5 / (12.01+ (32.06*2)) = 0.624 moles