How many moles are there in 1.09 kg of Al(OH)3?

Question

asked Jul 9, 2019 70.0k views

2 Answers

Hisham H M · Answer 1 · 2019-07-15T11:40:59+0000

For the calculation of moles, we divide mass of the substance given by the molar mass of the substance.

Its mathematically representation is as follows:

Number of moles of a substance= (Given mass of a substance)/( Molar mass of substance)

Here given mass of substance is 1.09 kg that is 1090 g

Molar mass of the substance is 78 g/mol

So number of moles can be calculated as:

Number of moles of a substance= (Given mass of a substance)/( Molar mass of substance)

Number of moles of Al(OH)₃= (1090)/(78)

So number of moles of Al(OH)₃ =13.9 mol