A sample was recorded to have 15.0 grams of hydrogen gas, how many liters would this be?

168 L

Explanation:

Given data:

Mass of hydrogen gas = 15 g

Volume occupied = ?

Solution:

First of all we will calculate the number of moles of hydrogen gas.

Number of moles = mass/ molar mass

Number of moles = 15 g/ 2 g/mol

Number of moles = 7.5 mol

One mole of any gas at STP occupy 22.4 L volume.

The standard temperature and pressure is 0°C and 1 atm.

Thus the volume occupy by the 7.5 moles hydrogen gas is,

7.5 mol × 22.4 L/1 mol = 168 L

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

може ли да зареждате повече информация, моля