Question

calculate the number of moles in 0.72 gm of co2 atomic mass of c-12 o-16

Answer 1

Answer:

Let's apply mole concept.

Molar mass of CO

2

=12+16×2=44gmol

−1

So mass of 1 mole = 44g

Therefore mass of 0.72 moles = 44×0.72=31.68g

Explanation:

The gram formula mass of a compound is the amount of that compound that has the same mass in grams as the formula mass in atomic mass unit. An atom of each element has a characteristic mass and in like manner each molecule of a compound has a characteristic formula mass.

When the formula mass of an ionic compound is determined by the addition of its component atomic masses and expressed in grams, it is called the Gram Formula Mass.

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