1.A student was given a sample of water that contained 5.65x10-4 moles of phosph
ID: 1077864 • Letter: 1
Question
1.A student was given a sample of water that contained 5.65x10-4 moles of phosphate (HPO42-). They added an excess magnesium (Mg2+) and ammonium (NH4+) to the water sample to form struvite. Determine the expected mass of struvite the student could obtain from this sample. (SHOW THE WORK TO RECEIVE FULL MARK)
2. One of the steps in this experiment asks you to prepare a solution of MgSO4·7H2O in water. Suppose a student weighed out 10.0 g of MgSO4·7H2O, mixed it with 75 mL of H2O and the final volume of the solution was 85 mL. Calculate the percent mass by volume of the MgSO4·7H2O solution the student made. (SHOW THE WORK TO RECEIVE FULL MARK)
Explanation / Answer
1.A student was given a sample of water that contained 5.65x10-4 moles of phosph
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