Question

Calculate the mass of 3.4 moles of nitrous acid (HNO2). Explain the process or show your work by including all values used to determine the answer.

Answer 1

Answer:

Mass = 159.8 g

Explanation:

Given data:

Mass of HNO₂ = ?

Moles of nitrous acid = 3.4 mol

Solution:

Formula:

Number of moles = mass / molar mass

We will rearrange this formula.

Mass = number of moles × molar mass

Molar mass of nitrous acid =  47 g/ mol

Mass = 3.4 mol × 47 g/ mol

Mass = 159.8 g