Question

1. how many molecules are in 7.24 moles of carbon monoxide (co)?

Explanation:

Step1: Recall Avogadro's number

Avogadro's number \(N_A = 6.022\times10^{23}\text{ molecules/mol}\)

Step2: Use the formula \(N=n\times N_A\)

Here \(n = 7.24\space mol\)
\(N=7.24\times6.022\times 10^{23}\)
\(N=(7.24\times6.022)\times10^{23}\)
\(7.24\times6.022 = 43.6\) (approximate calculation)
\(N = 4.36\times10^{24}\text{ molecules}\)

Answer:

\(4.36\times 10^{24}\text{ molecules}\)