2 years ago

The coefficients in a balanced chemical equation represent

1 answer:

8 0

The coefficients in a chemical equation represent the molar ratio of the substances.

For example, if an equation says 2H2 + O2 ⇒ 2H2O, it means
2 moles of H2 + 1 mol of O2 ⇒ 2 moles of H2O.

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What is the volume (in dm3 of 1 mole of oxygen at 5 MPa and 200 K?

vodka [1.7K]

Answer: The volume of oxygen gas is $0.332dm^3$

Explanation:

To calculate the volume of the gas, we use the equation given by ideal gas equation:

$PV=nRT$

where,

P = pressure of the gas = 5 MPa = 5000 kPa (Conversion factor: 1 MPa = 1000 kPa)

V = Volume of gas = 3.34 L

n = number of moles of oxygen gas = 1 mole

R = Gas constant = $8.31dm^3\text{ kPa }mol^{-1}K^{-1}$

T = Temperature of the gas = 200 K

Putting values in above equation, we get:

$5000kPa\times V=1mol\times 8.31dm^3\text{ kPa }mol^{-1}K^{-1}\times 200K\\\\V=0.332dm^3$

Hence, the volume of oxygen gas is $0.332dm^3$

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2 years ago

An ideal gas fills a balloon at a temperature of 227ºC and standard pressure. By what factor will the volume of the balloon chan

Vladimir [108]

Answer:

e. 327/227

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2 years ago

(a) 2, 8, 8, 2 (b) 2, 8, 8 (c) 2, 8, 8, 4 (d) 2, 8, 8, 6

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Answer:

I think my answer is

c) 2, 8, 8, 4

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