CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases
Problem
Some information about two dilute acids is shown.
dilute acid
acid concentration in mol/dm3
pH
nitric acid
0.1
1.0
propanoic acid
0.4
2.6
Three statements about the acids are listed.
1 Nitric acid has a lower pH because it dissociates more than propanoic acid.
2 Propanoic acid has a lower concentration of hydrogen ions than nitric acid.
3 Propanoic acid has a higher pH because it has a higher concentration.
Which statements are correct?
(A) 1 and 2
(B) 1 and 3
(C) 2 only
(D) 3 only