Given :
Volume of NaCl solution 2.5 L .
Molarity of NaCl solution is 0.070 M .
To Find :
How many moles are present in the solution.
Solution :
Let, n be the number of moles.
We know, molarity is given by :
So,
Therefore, number of moles of NaCl is 0.175 moles.
Answer:
a) find attached image 1
b) find attached image 2
Explanation :
The more stable radical is formed by a reaction with smaller bond dissociation energy.
since the bond dissociation for cleavage of the bond to form primary free radical is higher, more energy must be added to form it. This makes primary free radical higher in energy and therefore less stable than secondary free radical.
Answer: -
2.5
Explanation: -
Initial [HNO₂] = 2.00 M
ka = 5.00 x 10 ⁻⁶
ICE table for HNO₂ =
[
Ka =
5.00 x 10-6 =
x = 0.0032 M
pH = - log [H⁺]
= - log 0.0032
= 2.5