Question

How many grams are in 5.6 moles of C6H6?

Answer 1

Answer: 437 g C6H6

Explanation: Solution attached:

1 mole of C6H6 is equal to its molar mass 78 g C6H6.

5.6 moles C6H6 x 78 g C6H6 / 1 mole C6H6

= 437 g C6H6

Answer 2

The mass of C₆H₆ is 436.8 grams.

Given:

Moles of C₆H₆ =5.6 moles

To find:

Mass of C₆H₆ =?

Number of moles:

It is defined as given mass over molar mass.

Number of moles =  Given mass / Molar mass

Molar mass of C₆H₆ = 12*6 + 1*6 = 72+6= 78 g/mol

Mass = Number of moles *  Molar mass

Mass = 5.6 moles * 78 g/mol

Mass = 436.8 grams

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