Physics, asked by manuellaandrewyandam, 8 months ago

how many moles are in 19.82 g of Mg?

Answers

Answered by ammu9398
55

Answer:

0.8156mol mg I think it is helpful to u

Answered by Anonymous
0

Given:

Weight of Mg= 19.82g

To find:

The number of moles

Solution:

We can find the solution by following the given process-

We know that the number of moles is equal to the weight of the substance divided by its molar mass.

The number of moles= Weight of Mg/ Molar mass of Mg

The weight of one mole of Mg= 24.30u

The number of moles can be calculated as follows-

= 19.82/ 24.30

= 0.81 mol

Therefore, the number of moles in 19.82g of Mg is 0.81 mol.

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