Question

You have a sample of 75.6 g of C3H8. How many moles of C3H8 are in the sample?

Answer 1

The number of moles that are contained in the given mass of propane ($C_3H_8$ is 1.7143 moles.

Given the following data:

• Mass of propane = 75.6 grams.

Scientific data:

• The molar mass of propane = 44.1 g/mol.

To calculate the number of moles that are contained in the given mass of propane ($C_3H_8$):

How to calculate the moles of a compound.

In this exercise, you're required to determine the number of moles of propane that are contained in the given sample:

Mathematically, the number of moles contained in a chemical compound is given by this formula:

$Number\;of\;moles = \frac{mass}{molar\;mass}$

Substituting the given parameters into the formula, we have;

$Number\;of\;moles = \frac{75.6}{44.1}$

Number of moles = 1.7143 moles.

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