Answer:
The pH of the buffer solution is 4.60.
Explanation:
Concentration of acid =
Concentration of salt =
Dissociation constant =
The pH of the buffer can be determined by Henderson-Hasselbalch equation:
pH = 4.60
The pH of the buffer solution is 4.60.
Answer:
Q = 5036.9 calories
Explanation:
Given that,
Mass, m = 167.9 g
The temperature raises from 25°C to 55°C.
The specific heat of water,c = 4.184 J/g °C
We need to find the heat added to water. We know that,
or
Q = 5036.9 calories
So, 5036.9 calories of heat is added.
Explanation:
first find the the number of moles of of zinc .
as the number of moles of zinc and ZnCl2 is same we can calculate the mass of ZnCl2.
