Question

chalk contains calcium carbon and oxygen in the ratio 10:3:12 find the percentage of carbon in Chalk

Answer 1

Answer:

Step-by-step explanation:Given ratio = 10 : 3 : 12

Total part = 10 + 3 + 12 = 25

Part of Carbon = 3/25

Percentage of Carbon part in chalk

3/25 x 100=12%

Answer 2

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$<b><u>Answer</u></b>$

$<b>The percentage of carbon in Chalk is 12.</b>$

$<b><u>Step-by-step explanation</u></b>$

Given that,

$<b>Composition of calcium (Ca) in the chalk = 10</b>$

$<b>Composition of carbon (CO2) in the chalk = 3</b>$

$<b>Composition of oxygen (O) in the chalk = 12</b>$

Therefore, total composition of chalk =

Calcium (Ca) + Carbon (CO2) + Oxygen (O)

Total composition of chalk = 10 + 3 + 12

$<b>Therefore, total composition of chalk = 25.</b>$

The composition of Carbon in the chalk = $\frac{3}{25}$

Therefore, total percentage of Carbon in the chalk = $\frac{3}{25} × 100$

Therefore, total percentage of Carbon in the chalk = 3 × 4

$<b>Therefore, total percentage of Carbon in ths chalk = 12%</b>$

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