Answer :

You would do 83grams of Li x 1mol of Li/molar mass of lithium (6.94 g/mol)

It would equal 11.96 moles of lithium

11.96  moles of lithium are in 83 grams of lithium .

What do you mean by the  mole concept ?

A mole is defined as the amount of any chemical substance that contains as many elementary entities as there are atoms in 12 grams of pure carbon-12 (12C).

Mole concept is one of the most convenient ways of expressing amount of reactants and product in reaction.

Mole concept is mainly focused on the unit ‘mole’.  One mole of any substance is equal to the Avogadro number. This number as value 6.023×1023.

The number of moles formula is given as follows:

Number of Moles = Mass of substance /Mass of one mole

Here, in this question ,

Mass of lithium =83 g m s

We know,

Molar mass of lithium =6.94 g m s

To calculate no. of moles -:

Number of Moles = Mass of substance /Mass of one mole

Number of Moles of lithium=83/6.94

83grams of Li x 1mol of Li/molar mass of lithium (6.94 g/mol)

Number of Moles of lithium=11.96 mol

Hence ,it would be equal to 11.96 moles of lithium.

Learn more about  mole concept, here:

https://brainly.com/question/22540912

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