Question

use the following balanced equation to answer the questions: 2h₂ + o₂ → 2h₂o there are 2 moles of h₂ present. the molar mass of hydrogen is 1.01 g/mol. what mass of hydrogen is present?

Explanation:

Step1: Calculate the molar mass of \(H_2\)

The molar mass of \(H\) is \(1.01\ g/mol\). For \(H_2\), \(M = 2\times1.01\ g/mol=2.02\ g/mol\)

Step2: Use the formula \(m = n\times M\)

Given \(n = 2\ mol\) (moles of \(H_2\)), \(M = 2.02\ g/mol\). Then \(m=2\ mol\times2.02\ g/mol\)

Answer:

\(4.04\ g\)