caydenfivecoats4746 caydenfivecoats4746
  • 22-04-2021
  • Chemistry
contestada

How many grams of Si are there in a sample of Si that contains the same number of moles as a 60.8 gram sample of P?

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sebassandin
sebassandin sebassandin
  • 23-04-2021

Answer:

55.1 g Si.

Explanation:

Hello there!

In this case, for the given mole-mole relationship, it is possible to set up the following mole ratio as the moles of Si and P are the same:

1 mol Si = 1 mol P.

Next, since one mole of silicon has a mass of 28.09 g and one of phosphorous of 31.0 g, we can set up the following expression for the mass of silicon:

[tex]60.8gP*\frac{1molP}{31.0gP}*\frac{1molSi}{1molP}*\frac{28.09gSi}{1molSi}[/tex]

Therefore, the result is 55.1 grams of silicon.

Best regards!

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