What is the density of a gas at STP that has a molar mass of 50.0 g/mol?

At stp, 1 mol of any gas occupies 22.4 L.

and 1 mol of this gas u gave has a mass of 28.4 g  

m=dv becomes d=m/v = 28.4/22.4= 1.2678571428571428571428571428571 m/L

2)  molar volume at STP: 22.4 L and 1mol of this gas has a mass of 53.3 g

then d=m/v= 53.3/ 22.4 = 2.3794642857142857142857142857143 m/L

2.232 g/L

Explanation:

Assuming 1 mol, volume at STP is 22.4 L so you simply divide 50g by 22.4 L to get density

b is the correct answer

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