Home
Class 12
CHEMISTRY
How long will it take for a current of 3...

How long will it take for a current of 3 amperes to decompose 36 g of water. (Eq. mass. Of hydrogen is 1 g and that of oxygen 8 g):

A

36 hors apporx

B

18hours approx.

C

9 hours approx

D

4-5 hours approx.

Text Solution

Verified by Experts

The correct Answer is:
A
`W=Z I t`
Eq. mass of water `=("Mol.mass")/(2)=(18)/(2)=9`
`Z=("Eq. mass of water")/(96500)=(9)/(96500)`
`36g=(9)/(96500)xx3xxt
`therefore t=128866.7s=36` hours.
Promotional Banner

Similar Questions

Explore conceptually related problems

How long will it take for a uniform current of 6.0 ampere to deposite 78.0 g gold from asolution of AuCl_(4)^(-) ? What mass of chlorine gas will be formed simultaneously at the anode in the electrolytic cell ?

Calculate number of molecules in 3.6 g of water.

The number of atoms present in 1 g of hydrogen is the same as that in 1 g of oxygen.

Which does have more atoms, 1.0 g of hydrogen or 1.0 g of oxygen ?

Hydrogen peroxide H_(2)O_(2) (aq) decomposes to H_(2)O (l) and O_(2) (g) in a reaction that is first order in H_(2)O_(2) and has a rate constant k=1.06xx10^(3) min^(-1) (i) How long will it takes for 15% of a sample of H_(2)O_(2) to decompose? (ii) How long will it take for 87.5% of the sample to decompose?

Calculate the mass of 2.5 g atom of oxygen.

The number of moles in 36 g of hydrogen is _____

Five moles of helium are mixed with two moles of hydrogen to form a mixture. Take molar mass of helium M_(1) = 4g and that of hydrogen M_(2) = 2g The equivalent molar mass of the mixture is

Five moles of helium are mixed with two moles of hydrogen to form a mixture. Take molar mass of helium M_(1) = 4g and that of hydrogen M_(2) = 2g The equivalent degree of freedom f of the mixture is

Five moles of helium are mixed with two moles of hydrogen to form a mixture. Take molar mass of helium M_(1) = 4g and that of hydrogen M_(2) = 2g The equivalent of gamma is