The main buffer present in our blood is.....

Which of the following buffers will have a $pH$ value greater than $7$?

Which statement is correct for a mixture of $1 \ M \ NaCl$ and $1 \ M \ HCl$?

$A$ solution is prepared by mixing $10 \ mL$ of $1.0 \ M$ acetic acid and $20 \ mL$ of $0.5 \ M$ sodium acetate and diluted to $100 \ mL$. If the $pK_{a}$ of acetic acid is $4.76$, then the $pH$ of the solution is

Under which condition does a basic buffer follow the equation $pOH - pK_b = 1$?

Aqueous solutions of $HNO_{3}$, $KOH$, $CH_{3}COOH$, and $CH_{3}COONa$ of identical concentration are provided. The pair$(s)$ of solutions which form a buffer upon mixing is (are):