Question

How many moles of N2 are need to fill a 35 L tank at standard temperature and pressure?

Answer 1

1.56 moles of N2 are needed to fill a 35 L tank at standard temperature and pressure. Details about moles can be found below.

How to calculate number of moles?

The number of moles of a substance can be calculated using the following formula:

PV = nRT

Where;

• P = pressure
• V = volume
• n = number of moles
• R = gas law constant
• T = temperature

At STP;

• T = 273K
• P = 1 atm
• R = 0.0821 Latm/molK

1 × 35 = n × 0.0821 × 273

35 = 22.41n

n = 35/22.41

n = 1.56mol

Therefore, 1.56 moles of N2 are needed to fill a 35 L tank at standard temperature and pressure.

Learn more about number of moles at: brainly.com/question/14919968

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