a. If each pairs of students used a different mass of magnesium, what effect would this have on the percentage composition results? (assume all sources of error are eliminated)
b. What law if your answer in a. based on?
2007-04-02 23:51:55 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
All answers should have been the same, due to the Law of Constant Composition.
2007-04-02 23:56:37 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
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2007-04-02 23:59:26 · answer #2 · answered by Jessica R 1 · 0⤊ 1⤋
Take the mass of copper (its atomic mass) over the total mass (mass of copper + mass of oxygen) and divide. Multiply by 100 to get the % composition.
2016-03-28 23:30:41 · answer #3 · answered by ? 3 · 0⤊ 0⤋