For basic solutions, which element is added to balance half-reactions?
2 answers:
Answer: Hydroxide ion
Explanation: The question is to balance half -reactions in basic solutions(medium) and not to neutralize the basic solutions.
In acidic medium, half-reactions are balanced by adding and
where as the half-reactions in basic medium are balanced by adding
and
.
As the question asks about balancing half-reactions in basic solutions, the right choice is hydroxide ion.
Chlorine, Iron or nitrogen are not used for balancing half reactions.
You might be interested in
Answer : The rate of effusion of sulfur dioxide gas is 52 mL/s.
Solution :
According to the Graham's law, the rate of effusion of gas is inversely proportional to the square root of the molar mass of gas.
or,
..........(1)
where,
= rate of effusion of nitrogen gas =
= rate of effusion of sulfur dioxide gas = ?
= molar mass of nitrogen gas = 28 g/mole
= molar mass of sulfur dioxide gas = 64 g/mole
Now put all the given values in the above formula 1, we get:
Therefore, the rate of effusion of sulfur dioxide gas is 52 mL/s.
Molar mass of NH_3
We know.
No of moles=Given mass/Molar mass
Now
Lets write the balanced equation
- There is 2moles of Ammonia
- 3moles of H_2
- 1mole of N_2
Now
For Hydrogen
For Ammonia
For Nitrogen