Question

How is mole calculated by the formula? If you will give correct answer, then i will mark as Brainliest.

Answer 1

Answer:

The relative formula mass of a compound is calculated by adding together the relative atomic mass values for all the atoms in its formula. Moles are units used to measure substance amount.

Explanation:

number of moles = mass ÷ relative formula mass

Example:

1.  Calculate the number of moles of carbon dioxide molecules in 22 g of CO2.

Ans: Ar (relative atomic mass) of C = 12, Ar of O = 16

Mr (relative formula mass) of carbon dioxide = 12 + 16 + 16 = 44

number of moles = 22 ÷ 44 = 0.5 mol

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Answer 2

Answer:

Explanation:h hope this will help u