What is the molar mass of a gas if 0.281 g of the gas occupies a volume of 125 ml at a temperature 126 °c and a pressure of 777 torr?

The molar mass of gas is 72.03 g/mol.

Explanation:

Volume of the gas = V = 125 mL= 0.125 L

Pressure of the gas = P = 777 torr = 1.021 atm

(1 torr = 0.0013 atm)

Temperature of the gas = T= 126 °C = 399 K

Mass of the gas = 0.281 g

Number of moles of gas = n =

Using Ideal gas equation:

M = 72.03 g/mol

The molar mass of gas is 72.03 g/mol.

idk i’m struggling too

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.