Question

1. What is the gram formula mass of Ca(OH),?
(1) 29g
(3) 56 g
(2) 34 9
(4) 74 g

Answer 1

Answer:

Ca=40 and 2(OH)=34. Then the answer is 74 grams per mol

Explanation:

Ca= 40 gram

O= 16 gram

H=1 gram

OH=17 gram

1 Ca= 40 gram

2 OH=2*17 gram

Sum these up = 74 grams per mole