Question

Electrolysis of water can be used as a method of preparation of
oxygen and hydrogen gas. In an experiment 22.4 mL/s oxygen
required. How much current has to supplied to carry out the
experiment at STP?
22.4
224 A
386
193 A​

Answer 1

Given : Electrolysis of water can be used as a method of preparation of oxygen and hydrogen gas. In an experiment 22.4 mL/s oxygen

required.

To find : The current supplied to carry out the experiment at STP.

solution : no of moles of oxygen required = 22.4ml/22400 ml

= 10¯³ mol

as reaction takes as shown in below...

2H₂O ⇒2H₂ + O₂

here, 2O²¯ + 4e¯⇔ O₂

so we need 4e¯ charge per mole .

so total current = no of moles of oxygen required × 4e¯ × Avogadro's number

= 10¯³ × 4 × 1.602 × 10^-19 × 6.023 × 10²³

= 6.408 × 6.023 × 10

= 64.08 × 6.023

= 385.95 A ≈ 386 A

Therefore the current supplied to carry out the experiment at STP is 386 A.

Answer 2

Answer:386

Explanation:

Dont ask me the explaination, I solved it