Click to Chat
1800-2000-838
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
How much water should be added to 10g of acetic acid to give a hydrogen ion concentration of 10^-3 M(given:pKa=4.74)?
let mass of water added is V litre... molarity = 10/60V =1/6V (molar mass of acetic acid is 60) [H+] = (KaM)1/2 M = [H+]2 /Ka .............1 H+ = 10-3 & pka = -logKa = 4.74 Ka = 1.8*10-5 now M = 10-6 / 1.8*10-5 =1/6V V = 3 L
let mass of water added is V litre...
molarity = 10/60V =1/6V (molar mass of acetic acid is 60)
[H+] = (KaM)1/2
M = [H+]2 /Ka .............1
H+ = 10-3 & pka = -logKa = 4.74
Ka = 1.8*10-5
now M = 10-6 / 1.8*10-5 =1/6V
V = 3 L
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -