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A chemist needs 32.0 g of phenol, C6H5OH, for an experiment. How many moles of phenol is this?
Explain how to find the molar mass of the compound.
Explain how many significant figures your answer needs to have.
The numerical answer

Respuesta :

A chemist needs 32.0 g of phenol, for an experiment. The number of moles of phenol is 0.340 mol.

What are moles?

The mole is a SI unit of measurement that is used to calculate the quantity of any substance.

Calculating the moles

[tex]\rm Number\;of \;moles= \dfrac{mass}{molar\;mass}\\\\\rm Number\;of \;moles= \dfrac{32.0}{94.11} = 0.340 moles[/tex]

The molar mass can be calculated by counting the molecules of the elements. Then multiply the molecules of each element with its molar mass and then add the total number, you'll get the molar mass of the compound.

Thus, the number of moles of phenol is 0.340 mol.

Learn more about phenol

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