Question

Calculate the% of Ca and N in the following-
NH, Cao​

Answer 1

Atomic mass of N = 14 g/mol

Molar mass of NH₃ = 17 g/mol

% of N = (14×100)/17

% of N in NH₃ = 82.35 %

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Atomic mass of Ca = 40 g/mol

Molar mass of CaO = 56 g/mol

% of Ca = (40×100)/56

% of Ca in CaO = 71.469 %

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Answer 2

The Cl ion. because it has a greater affinity for electrons than the Na atom, the Cl atom takes an electron from the Na atom. When it does so, the outer valence shell of the Chlorine will be filled with eight electrons and so it will be stable.