# Answer to Question #86409 in General Chemistry for taha

Question #86409

A sample of N2 gas has a volume of 550 mL, has a pressure of 765 mm Hg, and is at a temperature of 27.8 °C. Calculate the amount (in moles) of N2 in the gas sample.

________ mol

________ mol

Expert's answer

We shoud use Ideal Gas Law to answer this question:

@$PV = nRT@$

@$765 mmHg\times0.550 L = n\times62.363\frac{L \times mmHg}{K \times mol}\times(28.7+273.15)K@$

@$n(N_2) =0.0224 mol@$

Answer: 0.0224 mol

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