Acids and Bases
A solution is formed by dissolving an antacid tablet and has a pH of 9.18. What is the H⁺?
3.3x10-10
1.01x10-10
9.4x10-10
6.6x10-10
If the pOH of an aqueous solution is measured to be 10, what is its hydroxide ion concentration ([OH-])?
10^-14 M
10^-10 M
10^4 M
10^-4 M
What type of intermolecular forces are predominantly present in a sample of liquid bromine (Br2)?
London dispersion forces
Ionic bonding
Hydrogen bonding
Dipole-dipole interactions
What happens to the pH when dilute sulfuric acid (H2SO4) is added to water?
There is no predictable change
The pH increases
The pH decreases
The decrease is not significant
What happens to the conductivity measurement when you dissolve sodium hydroxide (NaOH), a strong base, in water?
Increases sharply
Decreases sharply
Remains constant
Decreases slightly
In a strong base solution, what action occurs to the concentration of hydrogen ion (H+) when the solution is diluted with water?
It increases significantly
It decreases significantly
No significant change occurs
It increases slightly
If a student designs an experiment to determine the effect of ionic strength on the pH of a strong acid solution, which variable should be systematically altered while keeping others constant?
Temperature at which the reaction is carried out
Initial concentration of the strong acid
Concentration of a neutral salt
Volume of the strong acid solution

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If a solution has a pOH value of 4, what is its hydroxide ion [OH-] concentration?
10^-4 M
10^4 M
10^14 M
10^-10 M
What characterizes substances classified as "strong" acids or bases within aqueous solutions?
Conductivity based on molecular size rather than ionization
Reaction with metals to form gas products only
High boiling points due to intermolecular forces
Complete dissociation into their constituent ions
Which value corresponds to neutral pH at standard temperature conditions?
7
9
0
14