Which of these salts will have highest value of ph in water and why

Kcl

Nacl

Na2Co3

Cuso4

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Solution

NaCl is a salt of strong acid (HCl) and a strong base (NaOH).Therefore, its solution is neutral with
pH = 7

CuSO4 is a salt of strong acid (H2SO4) and weak base [CU(OH)2]. Therefore, its solution is acidic with pH <7.

Na2CO3 is a salt of strong base (NaOH) and weak acid (H2CO3). Therefore, its solution is basic with pH >7.

KCl is a salt in nature which shows that it has a cation of strong base and anion of strong acid and they both have no effect on the pH paper and it is has a standard value which shows that its pH is 7.0 which is a neutral figure.

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Which of these salts will have highest value of ph in water and why Kcl Nacl Na2Co3 Cuso4

Which of these salts will have highest value of ph in water and why

Kcl

Nacl

Na2Co3

Cuso4