Question

max no of molecules is present in
15L of H2 gas at STP
1.5g of H2 at STP
5l of N2 gas at STP
5g of O2 gas

Answer 1

Answer:

➡ Option ( 1 ) is the correct answer - AS MOLES =15/22.4

so moles =0.7

& no. of molecules = moles × Na (avogadro no.)

Hope it helps u

Answer 2

15 L of H₂ gas at STP

Explanation:

a)22.4 litre at STP contains 6.02 x 10²³ molecules of Hydrogen

15litre at STP contains = (15/22.4 ) x 6.02 x 10²³ molecules

b)2 g of hydrogen contains 6.02 x 10²³ molecules of hydrogen

1.5 g of Hydrogen contains = (1.5/2 ) x 6.02 x 10²³ molecules

c)22.4 litre at STP contains 6.02 x 10²³ molecules of Nitrogen

5 litre at STP contains = (5/22.4 ) x 6.02 x 10²³ molecules

d)32 g of oxygen contains 6.02 x 10²³ molecules of hydrogen

5 g of Hydrogen contains = (5/32 ) x 6.02 x 10²³ molecules