Calculate the volume in cm³ of oxygen evolved at s.t.p when a current of 5A is passed through acidified water for 193s?
[F = 96500 C mol¹. Molar volume of a gas at s.t.p = 22.4dm³]

Manuel135

5 years ago

how do you get the reaction?
40H—2H20+O2+4e.
someone should pls help me

Fe1fe1fe1fe1

3 years ago

How is the answer A. The questions says calculate the volume in cm³ not in dm³. So after finding the ans in dm³ you shld multiply by 1000 to give 56cm³ ie
0.056 × 1000=56cm³
If anyone has a contrary opinion pls explain

coco_pops33

1 year ago

so pls how did you guys get 4?

AshabiAyomide

2 months ago

the correct answer is 56 not 0.056 now 😭you guys are supposed to be checking this things well Una Dey give student heart attack 😭

MACCIFO

1 year ago

But you guys indicated that it should be calculated in cm^3 not in dm^3 making D the correct answer

09074559722

9 years ago

thats correct answer.

OsagieN

3 years ago

𝟱 x 𝟭𝟵𝟯 = 𝟵𝟲𝟱 𝗖

𝟵𝟲𝟱/𝟵𝟲𝟱𝟬𝟬 = 𝟭/𝟭𝟬𝟬 𝗙

(𝟭)/𝟭𝟬𝟬 x (𝟮𝟮.𝟰)/𝟰 𝗱𝗺³ = 𝟬.𝟬𝟱𝟲 𝗱𝗺³ 𝗔

Messi333333

5 years ago

In cm3 so the correct answer is 56cm3
My school correct that nonsense u chose there!!