1M 1L Aqueous Solution of HCl on evaporation volume of solution reduces to 600mL and concentration charges to 0.5M. Then, find the amount of HCl left from our Beaker.
Answers
Answer:
0.685
Explanation:
The original of 0.5N HCl solution of 1 litre had 18.225 gm of HCl
Initially 18.225gm of HCl was dissolved in 1 liter of silution
After heating , mass of HCl dissolved in the reduced 600mL of solution was found to be (18.225−3.25)gm=14.975 gm
Hence
Normality of new solution=
Volume of solution in litre
Equivalent weight of HCl mass
N=
1000mL per litre
600mL
Equivalent weight of HCl
14.497
N=
0.6 litre
36.45
14.497
N=
0.6 litre
0.3977 Meq
N=0.685
Given: 1M 1L Aqueous Solution of HCl on evaporation volume of solution reduces to 600mL and concentration charges to 0.5M.
To find: We have to find the amount of HCl left in a beaker.
Solution:
The total concentration of HCl solution is 1M.
On evaporation, only water will evaporate and the HCl will be left behind.
So, the concentration of HCl is 0.5M.
The initial volume of the aqueous solution of HCl is 1000ml.
on evaporation volume of solution reduces to 600mL.
So, the volume of HCl is 600ml.
This mass of HCl left will be-
600×.5=300
The amount of HCl left from our Beaker is 300 grams.