I'm not sure which one is the correct answer, could someone tell me which one it...

Question

Question

I'm not sure which one is the correct answer, could someone tell me which one it is and why

Which of the following pairs of substances can be used to make a buffer solution? а. HBr & LiOН b. NaC2H5COO & KHCOO C. H2SO4

Answer 1

Answer #1

a) HBr is strong acid and LiOH is strong base.

b) Both are the salts of weak acids.

c) H2SO4 is strong acid and NaC6H5COO is the salt of strong base and weak acid.

thus

solution may contains both weak acid and its corresponding salt.

Hence

this is buffer solution.

d) LiOh is strong base and KCH3COO is salt.

e) both are weak acids.

option (c) is the answer.

Answer 2

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