Answer:
[tex]atoms\ H=1.50x10^{24}[/tex]
Explanation:
Hello!
In this case, since the molecular formula of methane is CH₄, can compute the moles of methane in 10 g first:
[tex]n_{CH_4}=10gCH_4*\frac{1molCH_4}{16.05gCH_4} =0.623molCH_4[/tex]
Now, since 1 mol of methane contains 4 mol of hydrogen atoms, and 1 mol of any atom contains 6.022x10²³ atoms via the Avogadro's number, we obtain the following number atoms of hydrogen:
[tex]atoms \ H=0.623molCH_4*\frac{4molH}{1molCH_4}*\frac{6.022x10^{23}atoms\ H}{1molH}\\\\atoms\ H=1.50x10^{24}[/tex]
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