What is the correct way to convert grams of a substance to

Question

What is the correct way to convert grams of a substance to moles of a substance?

a. Divide the moles of the substance by the molar mass of the substance.

b. Multiply the moles of the substance by the molar mass of the substance.

c. Divide the grams of the substance by the molar mass of the substance.

d. Multiply the grams of the substance by the molar mass of the substance.

e. Add the grams of the substance to the molar mass of the substance.

Using 0.90 g of KAl(SO₄)₂ and 1.10 g of H₂O, calculate the ratio of moles of water to moles of anhydrous KAl(SO₄)₂.

a.1.2

b.17

c.2.1 x 10^-4

d.0.57

e.0.82