Question

you are given 15.3 grams of so₂, how many moles is this?

Explanation:

Step1: Calculate the molar mass of \(SO_2\)

The molar mass of \(S\) is \(32.07\space g/mol\), and the molar mass of \(O\) is \(16.00\space g/mol\). For \(SO_2\), \(M = 32.07+2\times16.00=64.07\space g/mol\)

Step2: Use the formula \(n=\frac{m}{M}\)

Given \(m = 15.3\space g\) and \(M = 64.07\space g/mol\), then \(n=\frac{15.3}{64.07}\approx0.24\space mol\)

Answer:

\(0.24\space mol\)