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16-12-2019
Chemistry

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

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16-12-2019

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

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