Apenny has a mass of 2.50g and the moon has a mass of ×7.351022kg, how many moles of pennies have a mass equal to the mass of the

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A penny has a mass of 2.50 g, while the mass of the Moon is approximately 7.35 × 10^22 kg. How many moles of pennies would equal the mass of the Moon?

Anonymous · Accepted Answer

122 molesProcedure:1) Convert all the units to the same unit2) mass of a penny = 2.50 g 3) mass of the Moon = 7.35 * 10^22 kg (I had to arrage your numbers because it was wrong).=> 7.35 * 10^22 kg * 1000 g / kg = 7.35 * 10^ 25 g.4) find how many times the mass of a penny is contained in the mass of the Moon.You have to divide the mass of the Moon by the mass of a penny7.35 * 10^ 25 g / 2.50 g = 2.94 * 10^25 pennies That means that 2.94 * 10^ 25 pennies have the mass of the Moon, which you can check by mulitiplying the mass of one penny times the number ob pennies: 2.50 g * 2.94 * 10^25 = 7.35 * 10^25.5) Convert the number of pennies into mole unit. That is using Avogadros's number: 6.022 * 10^ 237.35 * 10^ 25 penny * 1 mol / (6.022 * 10^ 23 penny) = 1.22* 10^ 2 mole = 122 mol. 122 mol

Anonymous · Answer

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

Anonymous · Answer

Ibelieve the answer 4 moles

Anonymous

Apenny has a mass of 2.50g and the moon has a mass of ×7.351022kg, how many moles of pennies have a mass equal to the mass of the

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