a. In step 16 of the procedure, you separated the solid SiO, by decanting the supernatant liquid. Provide an alternative method for this separation. 

b.  After decanting the supernatant you washed the solid three times. Explain why these washings were necessary. 

Your total percent recovery may not be 100 %. 

a. Describe a source of error that could result in a percent recovery of less than 100%

b. Describe a source of error that could result in a percent recovery of more than 100%.

c. Based on your observations, speculate on which of the three components was the most difficult to separate and recover. Briefly explain your selection.

Based on the mass percentages for your sample, describe how you would prepare a 5.00 g sample of your mixture