Solve the following Problems:
1.Calculate the PERCENTAGE COMPOSITION of
i)Calcium Chloride ii)Calcium nitrate
(Atomic wt: Ca-40, Cl- 35.5, N-14, O=16)
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Answer:
Calcium nitrate Ca[NO3]
Molecular mass of Ca[NO3]2 = Ca + 2[N2 + 3(O)]
= 40 + 2[14 + 3 × 16]
= 40 + 2[14 + 48]
= 40 + 124
= 164
hope it helps you....
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