Problem: The density of a gas is 1.96 g/L at STP. What would the mass of 2.00 moles of the gas be at STP?1. 87.8 g2. There is not enough information to solve.3. 44.8 g4. 0.0875 g5. 43.9 g6. 0.510 g

🤓 Based on our data, we think this question is relevant for Professor Sparks' class at TEXAS.

FREE Expert Solution
FREE Expert Solution

We’re being asked to determine the mass of 2.00 moles of gas at standard temperature and pressure, given its density.


Recall that standard temperature and pressure (STP) is defined as 1 atm and 0 ˚C

The density of a gas is given by:


d=PMRT


where: 

P = pressure (in atm)           R = gas constant (0.08206 atm • L/mol • K)

T = temperature (in K)         M = molar mass

d = density


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Problem Details

The density of a gas is 1.96 g/L at STP. What would the mass of 2.00 moles of the gas be at STP?

1. 87.8 g

2. There is not enough information to solve.

3. 44.8 g

4. 0.0875 g

5. 43.9 g

6. 0.510 g

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Our tutors have indicated that to solve this problem you will need to apply the Standard Temperature and Pressure concept. You can view video lessons to learn Standard Temperature and Pressure. Or if you need more Standard Temperature and Pressure practice, you can also practice Standard Temperature and Pressure practice problems.

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Based on our data, we think this problem is relevant for Professor Sparks' class at TEXAS.