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emmainna [20.7K]
3 years ago
6

If I have a 200 L container filled with nitrogen at a pressure of 1.0 atm, how many moles

Chemistry
1 answer:
egoroff_w [7]3 years ago
6 0
Is it250 degrees c if so it would be <span> 4.66 moles</span>
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the atomic masses of 63 cu (69.17 percent) and 65 cu (30.83 percent) are 62.94 and 64.93 amu, respectively. calculate the averag
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The average atomic mass of copper is 63.55 amu.

Explanation:

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Does mint really cool your breath? doing a science fair and also is there three good questions i could use for the topic?
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Yes it does.

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Calculate the pH of a solution with an H+ ion concentration of 9.36 x 10-3 M ?
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Answer:

The answer is 2.03

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ {H}^{+} ]

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pH =  -  log(9.36 \times  {10}^{ - 3} )  \\  = 2.02872415...

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2 years ago
How many grams of oxygen gas occupy 12.3 L of space at 109.4 kPa and 15.4oC?
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17.93 grams of oxygen gas occupy 12.3L of space at 109.4 kPa and 15.4°C. Details about how to calculate mass can be found below.

<h3>How to calculate mass?</h3>

The mass of a given gas can be calculated by multiplying the number of moles of the substance by its molar mass.

However, the number of moles of the gas must be calculated first as follows:

PV = nRT

Where;

  • P = pressure = 1.0796941atm
  • V = volume = 12.3L
  • n = number of moles
  • T = temperature = 288.4K
  • R = gas law constant = 0.0821 Latm/molK

1.079 × 12.3 = n × 0.0821 × 288.4

13.27 = 23.68n

n = 13.27/23.68

n = 0.56mol

Mass = 0.56 × 32

mass of oxygen gas = 17.93g

Therefore, 17.93 grams of oxygen gas occupy 12.3L of space at 109.4 kPa and 15.4°C.

Learn more about mass at: brainly.com/question/19694949

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2 years ago
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3 years ago
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