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ivolga24 [154]
3 years ago
10

What is the composition of 'Clean dry air' - Idk what subject its just science

Chemistry
1 answer:
Luba_88 [7]3 years ago
7 0
Dry air is a mixture of nitrogen, oxygen, carbon dioxide etc.
air is a mixture of gases 78% nitrogen an 21% oxygen and other components.
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Answer:

Explanation:

  8.73 mol                                         x mol

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2 mol                                               114 mol

8.78 mol (114mol/2 mol) =500.46 mol

8 0
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3 years ago
If a pharmacist adds 10 ml of purified water to 30 ml of a solution having a specific gravity of 1.30, calculate the specific gr
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Now the mass of the 10 mL of water is 10 g as density of water is 10 g/mL. Thus after addition the total mass of the solution is (39 + 10) = 49g and the volume is (30 + 10) = 40 mL. Thus the density of the mixture will be \frac{49}{40}=1.225 g/mL. Thus the specific gravity of the mixed sample will be 1.225 g/mL.

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3 years ago
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anzhelika [568]
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2 years ago
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