Acids and Bases

Bond Strength of Acids

HBr 366.35

HCl 431.62

HI 298.40

HF 569.87

Ionic bond strength determines how easily an acid can ionize in solution. Based on the data in the above table, which acid is likely to have the highest conductivity?

• HBr

• HCl

• HI

• HF

Tags

NGSS.HS-PS1-3

Stronger acids are those that —

• hold on to their protons more strongly

• lose their protons more easily

• more completely inhibit polarity in water

• exhibit hydrogen bonding

The conjugate pair for a strong base is -

• a strong base

• a weak base

• a strong acid

• a weak acid

For two acids of equal concentration, the stronger acid has a -

• higher concentration of hydroxide ions

• higher pH

• higher concentration of hydronium ions

• strong bond

An aqueous solution of sodium hydroxide reacts completely with a solution of hydrochloric acid. After all the water evaporates from the reaction mixture, what will remain?

• sodium chloride

• chlorohydroxide

• sodium oxide

• sodium chlorate

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

“An acid is a substance that forms hydrogen ions when dissolved in water.” This is an example of —

• an Arrhenius definition

• a Bronsted-Lowry definition

• an operational definition

• a chemical change definition

A sample of fruit juice is found to have a hydrogen ion concentration of 2.87 x 10^-4 . What would the pH be?

• 2.87

• 3.54

• 4.58

• 8.16

The pH of a basic solution is -

• exactly 7

• less than 7

• greater than 7

• between 3 and 6

which indicator would detect the neutralization of a strong acid by a strong base?

• crystal violet (color change at pH = 1)

• methyl orange (color change at pH = 4.5)

• bromothymol blue (color change at pH = 7)

• alizarin yellow (color change at pH = 10)