i need to figure out how to do #8 it needs me to find how many moles

Answer:
Explanations:
Given the following information from the question.
[tex]\text{molecule of }K_2SO_4=4.75\times10^{28}molecules[/tex]The number of moles of the compound will be calculated using the formula:
[tex]\text{moles of K}_2SO_4=\frac{4.75\times10^{28}molecules_{}}{avogadros\text{ number}}[/tex]Substitute the avogadros number into the formula:
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