Final answer:
To prepare a 25% potassium sulfate solution in 630g of water, calculate the grams of solute required using a specific formula.
Explanation:
To calculate the grams of solute needed to prepare a 25% potassium sulfate solution in 630g of water, use the formula:
grams of solute = (percentage of solute x grams of solvent) / (100% - percentage of solute)
Substitute the values to find the grams of potassium sulfate needed.
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