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Ganezh [65]
3 years ago
13

Calculate the precise Molar Mass of NH3 and calculate the moles in 50.0 grams.

Chemistry
1 answer:
Diano4ka-milaya [45]3 years ago
7 0

Answer: Molar mass of NH_3 is 17.00 g and moles in 50.0 grams is 2.94.

Explanation:

Molar mass is defined as the mass in grams of 1 mole of a substance.

S.I Unit of Molar mass is gram per mole and it is represented as g/mol.

Atomic Mass of Nitrogen (N) = 14.00 g

Atomic Mass of Hydrogen (H) = 1.00 g

Molar mass of NH_3 = 1(14.00)+3(1.00) g = 17.00 g

According to avogadro's law, 1 mole of every substance contains avogadro's number 6.023\times 10^{23} of particles and weigh equal to its molecular mass.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

\text{Number of moles of }NH_3==\frac{50.0g}{17.00g/mol}=2.94moles

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