Question

20 L of H2 gas at STP weigh about
1) 44.8 g
2) 12.2 g
3) 1.8 g
4) 20 g
with step by step explanation​

Answer 1

Answer:

44.8g

Explanation:

this is answer

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Answer 2

Answer:

3) 1.8

Explanation:

don't worry I will explain you.

any gas at STP have 22.4 L of volume.

and H2 GAS given volume is 20L

therefore mole = 20/22.4

and weight = mole × molar mass

20/22.4 ×2 = 1.8g

I hope you understood.