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Calculate the weight after the copper has been deposited. !Answer!: 11.6116 grams. !Answer!: 0.5705 gram. !Answer!: 0.6573 gram. If in the analysis of a brass containing 28.00% zinc an error is made in weighing a 2.5 gram portion by which 0.001 gram too much is weighed out, what percentage error in the zinc determination would result?