We’re being asked to calculate the moles of solute particles are present in 5.04 mL of 0.796 M K2SO4.
Recall that molarity is the ratio of the moles of solute and the volume of solution (in liters).
In other words:
How many moles of solute particles are present in 5.04 mL of 0.796 M K2SO4? When you have the value, take its LOG (base 10) and enter it with 2 decimal places as your answer.
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