What is the mass in grams of 5.50 moles NH3? • Your answer should have three significant figures.
Provide your answer below.
n Proctor
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SEDRAG
a

Mass = 93.5 g

Explanation:

Given data:

Number of moles of NH₃ = 5.50 mol

Mass of NH₃ = ?

Solution:

Formula:

Mass = number of moles × molar mass

Molar mass of ammonia = 17 g/mol

By putting values,

Mass = 5.50 mol × 17 g/mol

Mass = 93.5 g

the answer is option a.

there are two significant figures.