Question
Asked Sep 13, 2019
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A sample is marked as containing 47.9 percent calcium carbonate by mass. How many grams of calcium carbonate are contained in 58.9 grams of the sample?

How many grams of the sample above would contain 15.1 grams of calcium carbonate ?

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Expert Answer

Step 1

Given, mass of a sample = 58.9 g

The sample contains 47.9 percent calcium carbonate by mass.

The mass of calcium carbonate in the sample can be calculated as:

Mass of calcium carbonate = 47.9% x Mass of sample
47.9
X
Mass of calcium carbonate
58.9 g 28.2131 g
100
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Mass of calcium carbonate = 47.9% x Mass of sample 47.9 X Mass of calcium carbonate 58.9 g 28.2131 g 100

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Step 2

This means that 28.2131 g is present in 58.9 g of the sample.

Therefore, grams of the sample in 15.1 g of calcium carbo...

28.2131 g of C2CO3 is present in
58.9 g of sample
58.9
1 g of CaCO3 is present in
28.2131 of sample
58.9
x 15.1 g of sample
. 15.1 g of CaCO3 is present in
28.2131
- 31.52 g of sample
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28.2131 g of C2CO3 is present in 58.9 g of sample 58.9 1 g of CaCO3 is present in 28.2131 of sample 58.9 x 15.1 g of sample . 15.1 g of CaCO3 is present in 28.2131 - 31.52 g of sample

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