Question

The mass of 1 mole of calcium chloride, CaCl2, is equal to

A. 3.5453 × 101 grams.

B. 4.008 × 101 grams.

C. 7.562 × 101 grams.

D. 1.110 × 102 grams.

E. 1.511 × 102 grams.

Answer 1

can anybody tell me what conversion factor to use?

Answer 2

Mole to mass = multiply with molar mass
what is the molar mass of CaCl2?

Answer 3

110.98 g/mol

Answer 4

That's correct, now the only thing you have to do is multiply that with the amount of moles, which is 1, so it will stay the same.

So 110.98 is your answer. convert that to scientific notation and you'll get \(\sf 1.110*10^2\) grams

Answer 5

thanks :)