3 years ago

How many grams of SO2 can be formed from 0.622 mole FeS2

Chemistry

1 answer:

Anna71 [15]3 years ago

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It is called boiling when evaporation takes place beneath the surface of a liquid. The evaporation is a kind of vaporization only takes place at the surface of a liquid.

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Suggest a reason why water would probably not be a suitable solvent to use for this chromatography

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What is the percent composition of hydrogen if a sample is found to contain 7 grams of hydrogen, 32 grams of nitrogen, and 7 gra

nata0808 [166]

<u>Answer:</u> The percent composition of hydrogen in the sample is 15.22 %

<u>Explanation:</u>

We are given:

Mass of hydrogen = 7 grams

Mass of nitrogen = 32 grams

Mass of carbon = 7 grams

Total mass of the sample = 7 + 32 + 7 = 46 grams

To calculate the percentage composition of hydrogen in sample, we use the equation:

$\%\text{ composition of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Mass of sample}}\times 100$

Mass of sample = 46 g

Mass of hydrogen = 7 g

Putting values in above equation, we get:

$\%\text{ composition of hydrogen}=\frac{7g}{46g}\times 100=15.22\%$

Hence, the percent composition of hydrogen in the sample is 15.22 %

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Scientific notation for 706000

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A gas occupies a volume of 0.7 L at 10.1 kPa. What volume will the gas occupy at 101 kPa?

Nataly [62]

Answer:

Explanation:

Divide 101 by 10.1(kPa) and you get 10.

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