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 3.30 kg on the surface to get adequate coverage.

part a

how many moles of zinc are in 3.30 kg of zinc?

express your answer to three significant figures and include the appropriate units.

50.5 mol
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correct

significant figures feedback: your answer 50.47mol was either rounded differently or used a different number of significant figures than required for this part.

1.aluminum chloride (alcl3), and sodium hydroxide (naoh) can react to form aluminum hydroxide (al(oh)3) and sodium chloride (nacl).    you have 13.4 g of aluminum chloride and 10.0 g of sodium hydroxide. answer the following questions: •what is the balanced equation for this reaction? •if you use all 13.4 g of aluminum chloride, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •if you use all 10.0 g of sodium hydroxide, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •how many grams of aluminum hydroxide will actually be made?     which reagent is limiting? explain your answer.

Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?

What natural processes produce large quantities of co2