The pH values of aqueous solutions of which of the following compounds does not change on dilution?

Question

The pH values of aqueous solutions of which of the following compounds does not change on dilution? (A) PhCOONH 4 (B) NH 4 CN (C) HCOONa (D) NH 4 Cl

Tardigrade Admin · Accepted Answer

Either buffer to salt of WA / WB solutions pH values does not change on dilution Since in buffer, on dilution both the concentration of WA or WB and their conjugate ions change, but their ratio remains same Hydrolysis of salts of WA / WB are independent on the concentration, so their pH values also does not change on dilution

Q. The $p H$ values of aqueous solutions of which of the following compounds does not change on dilution?

$P h COON H_{4}$

$N H_{4} CN$

$H COON a$

$N H_{4} Cl$

Q. The pH values of aqueous solutions of which of the following compounds does not change on dilution?

PhCOONH4​

NH4​CN

HCOONa

NH4​Cl

Q. The $p H$ values of aqueous solutions of which of the following compounds does not change on dilution?

$P h COON H_{4}$

$N H_{4} CN$

$H COON a$

$N H_{4} Cl$