Calculate the number of moles of hydrogen in 0.448. Liter of hydrogen gas at STP
Answers
given that volume of hydrogen gas = 0.448 litre = 0.448 dm^3 [ 1 Litre = 1dm^3]
No. of moles(n) of hydrogen gas =
volume of hydrogen gas ÷ molar volume of hydrogen gas
0.448 dm^3 / 22.4 dm^3 ( molar volume of any gas is 22.4 dm^3 )
= 0.448 ×1000/22.4×1000
=448/224×100
=2/100
=0.02 mol
n = 0.02 moles
Answer:
Explanation:
We are given volume of hydrogen gas at STP ( Standard temperature and Pressure ) as 0.488 litres.
We have to calculate the number of mole.
Since we are given the volume, number of mole can be calculated as :
⇒ Num. of mole = Volume / 22.4
[ 22.4 because of STP ]
⇒ Num. of mole = 0.488 / 22.4 [ Given ]
⇒ Num. of mole = 0.02 mole
Hence, The number of mole of Hydrogen gas in this case is 0.02 mole
Some Information :-
• If we have to find the number of mole of an atom or molecule we can do so using the given formula :
Num. of mole = Mass given / Molar mass
• 1 mole of an atom or molecule has 6.022 × 10²³ atoms or molecules respectively.