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Please help me with this question. Thank you so much! A 0.5-mL sample of the filtered...

Please help me with this question. Thank you so much!

A 0.5-mL sample of the filtered crude pig heart extract was removed and was labeled “CRUDE.” 30.0 mL of filtered crude pig heart extract was added to a clean beaker and gently stirred on ice using a magnetic stir bar. This solution was kept ice cold throughout. Finely crushed ammonium sulfate powder was slowly added to the crude extract until the solution was 40% saturated.

1). Assuming a solubility of 70.6 g of ammonium sulfate per 100 mL of H2O at 0.00°C (ice-cold solution), how many grams of ammonium sulfate must be added to the crude extract to bring the solution to 40% saturation?

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