Question

Somebody help me!!
Calculate the mass of 2.046L of NO2​

Answer 1

Answer: 4.20 g

Explanation

Since this is a gas, 1 mole must equal 22.4 L, so we must first find how many moles 2.046 L of NO2 is.

1 —> 22.4
x —> 2.046

Then x must equal 0.09134.

The molar mass of NO2 is 46

Remember that moles = mass/ molar mass.

Therefore, 0.09134 = x/46

x = 0.09134 x 46

x= 4.20 g

Hope this helps :)