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vovikov84 [41]
3 years ago
13

What is the percent by mass of oxygen in carbon dioxide (CO2)?

Chemistry
2 answers:
krok68 [10]3 years ago
8 0

Answer:

I think that it will be

Explanation:

72.71%

vesna_86 [32]3 years ago
5 0

Answer:

72.71%

Explanation:

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A steel cylinder of oxygen is being store in a room at 25.0 °C under a pressure of 1250 atm. What pressure would be exerted by t
Rudik [331]

Answer:

P₂ = 1312.88 atm

Explanation:

Given data:

Initial temperature = 25°C

Initial pressure = 1250 atm

Final temperature = 40°C

Final pressure = ?

Solution:

Initial temperature = 25°C (25+273.15 = 298.15 K)

Final temperature = 40°C ( 40+273.15 = 313.15 k)

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

1250 atm / 298.15 K = P₂/313.15 K

P₂ = 1250 atm × 313.15 K / 298.15 K

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3 years ago
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bagirrra123 [75]

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6 0
2 years ago
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What pressure is required to compress 156.0 liters of air at 2.00 atmosphere into a cylinder
garik1379 [7]

Answer:

option B.

Explanation:

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