22. Calculate the molar concentration of HNO3 (63.0 g / mol) in the solution that has a specific gravity of 1.42 and is 70% HNO3 (w / w).
(A)8M
(B)4M
(C)13M
(D)16M
(E)12M

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統計： A(5), B(1), C(0), D(6), E(0) #2275868

詳解 (共 1 筆)

#4755744

1.42 Kg/L × 103 g/Kg × 70g/100g = 994 g/L 

CHNO3 = 994 g/L × (1 mol/63.0 g) = 15.8 mol/L = 16 M 

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