What is the total number of moles represented by 20 grams of caco3

a. 0.1
b. 0.2
c. 1
d. 2

B. 0.2.

Explanation:

n = mass/molar mass

mass of CaCO₃ = 20 g, molar mass of CaCO₃ = 100.0869 g/mol.

∴ n = mass/molar mass = (20 g)/(100.0869 g/mol) = 0.1998 ≅ 0.2 mol.

So, the right choice is: B. 0.2.

distance, luminosity, brightness, radius, chemical composition, and temperature

answerto predict;