Question

calculate the molecular mass of NH3 and C2H5OH is in​

Answer 1

Answer:

(a) Molar mass of NH3 = 17 amu. ● Explanation - Before we start calculating, I'd like to write down atomix masses of relevant individual elements - (a) NH3 - Molar mass of NH3 = 14 + 3×1. (b) CH3-COOH - Molar mass of CH3-COOH = 2×12 + 4×1 + 2×16. (c) C2H5-OH - Molar mass of C2H5-OH = 2×12 + 6×1 + 16.

Explanation:

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Answer 2

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Molar mass of ethanol (C2H5OH) 

=2(12)+6(1)+16.1=46.1 g/mol

• no of atoms × atomic mass of given element