The atomic mass of N is 14 u and that of Ca is 40 u. The proportion of N by mass in the compound Ca₃N₂ is

Name: The atomic mass of N is 14 u and that of Ca is 40 u. The proportion of N by mass in the compound Ca 3 N 2 is
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The compound given is Ca3N2. The molar mass of Ca3N2 is calculated as: (40 u * 3) + (14 u * 2) = 120 u + 28 u = 148 u. The proportion of N by mass is: (28 u / 148 u) * 100% ≈ 19%.

The Atomic Mass of N Is 14 U and That