Question

what percent of oxygen, carbon, and calcium are in 22.4 grams, 21.01 grams and, 24.5 grams of CaCO3

Answer 1

Answer:

A

100.09

⋅

g

mass of calcium carbonate contains

48

⋅

g

of oxygen atoms.

Explanation:

In one mole of calcium carbonate, there are

40.08

⋅

g

calcium metal,

12.01

⋅

g

of carbon, and

3

×

15.999

⋅

g

=

48

⋅

g

of oxygen.

Answer 2

Answer:

100.09

⋅

g

mass of calcium carbonate contains

48

⋅

g

of oxygen atoms.

Explanation:

In one mole of calcium carbonate, there are

40.08

⋅

g

calcium metal,

12.01

⋅

g

of carbon, and

3

×

15.999

⋅

g

=

48

⋅

g

of oxygen.

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