Question

the pH of a compound is found to be 9 the compound can be a) HCl b) NaOH. c) Na2CO3 d) CH3COOH​

Answer 1

Answer:

Na2CO3

Explanation:

acid has pH less than 7 and base has pH of more than 7

HCL is strong acid

NaOH is strong base

CH3COOH is an acid

but only NaOH is a base which pH can lie between this

Answer 2

Answer:

Na2CO3

Explanation:

it should be a base :more than 7

HCL , is less than 7

Na2CO3 is 10.53

CH3COOH is 2.52

HCl is 2.

NaOH is more than 13

so the near is Na2CO3