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For the remaining questions, assume that you start with 0.435 g of copper turnings: Calculate the initial number of moles of Cu.8510-3 mol Answered...

For the remaining questions, assume that you start with 0.435 g of copper turnings:

Calculate the initial number of moles of Cu.
6.85×10-3 mol Answered

Calculate the minimum volume of 16.0 M HNO3 required to dissolve all of the copper (step 1).
1.71 mL Answered

If, in practice, 5.0 mL of 16.0 M nitric acid were added to effect the dissolution of the copper (step 1), what would be the minimum volume of 4.00 M NaOH required to neutralize the remaining acid and convert all of the Cu2+(aq) to Cu(OH)2(s) (step 2)? Do not know???

Calculate the minimum volume of 1.00 M H2SO4 required to dissolve all of the CuO(s) (step 4). Do not know???

Calculate the minimum mass of zinc required to reduce all of the Cu2+(aq) to Cu(s) (step 5).
(Note that, in practice, a significant excess of zinc is used due to loss of H2(g).) Do not know???

This question was asked on Jan 15, 2013.

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