To calculate the number of molecules in a given number of moles, we need to use Avogadro's number, which is approximately 6.022 x 10^23 molecules/mol.
Given:
Number of moles of H2S = 7.00 mol
We can use the formula:
Number of molecules = Number of moles × Avogadro's number
Let's plug in the values and calculate:
Number of molecules = 7.00 mol × 6.022 x 10^23 molecules/mol
Number of molecules = 4.2154 x 10^24 molecules
Therefore, there are approximately 4.2154 x 10^24 molecules in 7.00 moles of H2S.