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Elanso [62]
4 years ago
5

Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is Zn2+(aq)+2e−→Zn(s)

For a large batch of nails, a manufacturer needs to plate a total zinc mass of 3.40 kg on the surface to get adequate coverage. Part A How many moles of zinc are in 3.40 kg of zinc? Express your answer to three significant figures and include the appropriate units.
Chemistry
1 answer:
Ymorist [56]4 years ago
6 0

Answer:

52.0 moles

Explanation:

no. of moles of Zn =\frac{mass}{molar mass}=\frac{3400g}{65.38g/mol}=52.0mol

The important part in this question is changing the kilograms to grams so that the units of the mass(grams) are divisible by the units of the molar mass (grams/molar mass)

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