Homework Answers
a) If sample was not dried completely at the end of experiment, the measured weight of sample would be greater than actual weight. As a result, the calculated percentage of magnesium would be higher than actual value.
b) If small part of magnesium is lost after weighing and before reaction was performed, then the calculated percentage of magnesium calculated would be lower than expected, since the weight of magnesium measured initially would be used for calculation of percentage.
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