Find the formula for a hydrate (salt containing water) which is 55.2% NiSO4, and 44.8% H20.

The formula for a hydrate : NiSO₄. 7H₂O

Given

55.2% NiSO₄, and 44.8% H₂O

Required

The formula

Solution

MW NiSO₄ = 154,75 g/mol

MW H₂O = 18 g/mol

Mol ratio :

NiSO₄ : 55.2 : 154,75 g/mol = 0.357

H₂O : 44.8 : 18 g/mol = 2.49

Divide by 0.357 :

NiSO₄ = 0.357/0.357 = 1

H₂O = 2.49/0.357 = 7

a is the answer

explanation:

which statement about trans-fatty acids is false?

a. the conversion of cis-fatty acids to trans-fatty acids is inhibited by the presence of antioxidants.

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