Acids and Bases

What is the pH value of a strong alkali?

Which of the following is a safe way to identify a dilute acid in a laboratory setting?

Which of the following is another name for a basic solution?

What is the pH of human blood (approximately)?

A student adds a few drops of universal indicator to a beaker of distilled water and then exhales into the water through a straw. What color change will they observe?

What is the likely pH of a $0.1 \text{ mol dm}^{-3}$ aqueous solution of ammonia ($NH_3$)?

Which of the following sets contains only acidic oxides?

Which statement correctly describes the auto-ionization of water?

If the $pH$ of a solution is 13, what is the concentration of $OH^-$ ions?

Which of the following is NOT a property of basic solutions?

Which acid is found in 'fizzy' carbonated drinks?

What is the pH of a solution that turns Universal Indicator dark red?

The term 'alkali' specifically refers to a base that:

Which of these substances would have the highest pH?

When dilute hydrochloric acid reacts with sodium carbonate, what observation would be most obvious?

What is the main reason that acids are stored in glass or specific plastic containers rather than metal ones?

Which of these is a typical salt formed from the reaction of an acid with an alkali?

Identify the substance that behaves as both a Brønsted-Lowry acid and a Brønsted-Lowry base (amphiprotic).

Which of the following salts will form a basic solution when dissolved in water?

Which of the following acts as a Lewis base in a chemical reaction?

In the reaction $HCl + NaOH \rightarrow NaCl + H_{2}O$, which substance is the salt?

What is the common property of all salts?

Which of the following is a neutral substance?

Which gas is NOT typically released during a simple neutralization reaction between a metal hydroxide and an acid?

Which of the following describes the change in $H^{+}$ ion concentration when an alkali is added to an acid until the solution is neutral?

Which salt would be produced from the reaction of Hydroiodic acid ($HI$) and Potassium hydroxide ($KOH$)?

In the context of Brønsted-Lowry theory (often introduced in Grade 9), what happens during neutralization?

Why does the temperature increase during the reaction between Hydrochloric acid and Sodium hydroxide?

Which of the following is the correct formula for the salt produced when Zinc oxide reacts with Phosphoric acid?

A student accidentally spills a concentrated solution of $H_{2}SO_{4}$. Which of the following should they use to safely neutralize the spill for cleanup?

What is the primary advantage of Universal indicator over litmus paper?

If a solution turns red litmus paper blue, what is its most likely $pH$?

What color would a solution of $pH$ 2 be if Universal indicator were added to it?

Which of the following color changes is correct for methyl orange?

What is the expected color of bromothymol blue in a solution of $0.001\ mol/dm^3$ sodium hydroxide?

Which color does methyl orange take in a solution of distilled water ($pH$ 7)?

A student tests three liquids and records the results. What can be concluded about liquid Z?

In the titration of a strong acid with a strong base, many indicators are suitable. Why is this?

A student adds methyl orange to a solution and it turns yellow. They then add phenolphthalein and it remains colorless. What is the possible $pH$ range of the solution?

If you are titrating $0.1 M$ $HNO_2$ (nitrous acid, $K_a = 4.0 \times 10^{-4}$) with $0.1 M$ $KOH$, which indicator's $pK_{In}$ should be closest to the calculated equivalence point $pH$?

Which of the following is a neutral substance?

If a substance 'X' donates a proton to substance 'Y', then 'X' is a:

Brønsted-Lowry acids and bases always exist in:

Which of the following is NOT an acid?

If the $pH$ of a solution is 12, the solution is:

Which substance is the conjugate base of $NH_4^+$?

A Brønsted-Lowry acid-base reaction involves the transfer of:

Which of the following substances can act as a Lewis acid but does NOT have a $H^+$ to donate?

If you have $100$ $cm^3$ of $HCl$ with $pH = 2$, how much water must be added to change the $pH$ to $4$?

According to the Arrhenius theory, why is $NH_3$ not strictly defined as a base?

In the Bronsted-Lowry definition, an acid is a ________ donor.

Which gas is produced when a strong acid reacts with a metal carbonate?

Which of the following acids is considered weak?

A solution has a high concentration of $OH^-$ ions and a pH of 12. It is a:

Which of the following is NOT a strong acid?

In the Bronsted-Lowry theory, a weak acid is one that:

Which of the following solutions will turn universal indicator purple?

A student investigates the effect of dilution on the $pH$ of two acids. Acid $HX$ is a strong acid and Acid $HY$ is a weak acid. Initially, both acid solutions have a $pH$ of 2.00. If both solutions are diluted by a factor of 100 (e.g., $1\text{ cm}^3$ of acid added to $99\text{ cm}^3$ of distilled water), which of the following best describes the $pH$ of the resulting solutions?

Solution A (a strong monoprotic acid) and Solution B (a weak monoprotic acid) both have a measured $pH$ of 3.00. If $25.0\text{ cm}^3$ of each solution is titrated to the equivalence point using $0.10\text{ mol/dm}^3$ $NaOH(aq)$, which statement correctly describes the outcome?

What happens to the $pH$ of a $0.1\text{ mol/dm}^3$ $NH_3$ solution if $NH_4Cl$ (a salt containing the conjugate acid) is added?

In the reaction $CaO + 2HCl \rightarrow CaCl_2 + H_2O$, $CaO$ is acting as a:

Which pair of oxides are both acidic?

Which of these is NOT a characteristic of neutral oxides?

If an oxide 'X' dissolves in water to turn universal indicator purple, 'X' is likely a:

If an element $E$ is in Group 16 of the Periodic Table, its oxide $EO_2$ is most likely:

Which of the following oxides is amphoteric?

What is the pH of a solution formed by dissolving $Na_2O$ in water?

An oxide of element $Q$ reacts with $HCl$ to form a salt and water, and also reacts with $KOH$ to form a salt and water. Which group is element $Q$ most likely to belong to?

Which gas is evolved when $P_4O_{10}$ is reacted with an excess of $NaOH$ solution?

Consider the oxide $Ga_2O_3$. Based on the position of Gallium in the periodic table (below Aluminum), what is its most likely nature?

Which acid would you use to produce magnesium sulfate?

What do we call the solid that is left on the filter paper after filtration?

Which salt is used as a food preservative and for seasoning?

When making a salt through titration, why is an indicator used?

Identify the salt formed from the reaction between Lithium Hydroxide and Hydrochloric Acid.

Which reaction represents a neutralization process?

Which property of a salt determines whether it can be prepared by the titration method?

Which salt is used in the manufacturing of glass, paper, and detergents, and is often produced by the Solvay process?

In the qualitative analysis of salts, which gas is evolved when an ammonium salt is heated with aqueous sodium hydroxide?

Which of the following salts would produce an alkaline solution when dissolved in water due to hydrolysis?

In the pH scale, how much more acidic is a pH 3 solution compared to a pH 4 solution?

What is the salt produced when hydrochloric acid reacts with sodium hydroxide?

Which gas will relight a glowing splint?

What is the correct chemical name for $H_2CO_3$?

Which of the following is a safe way to test for the 'squeaky pop' of hydrogen?

When $CO_2$ reacts with limewater, why does the cloudiness eventually disappear if you keep adding $CO_2$?

Which of these gases is a product of the incomplete combustion of carbon but is NOT the gas that turns limewater cloudy?

Which of the following best describes 'limewater'?

When $Mg$ reacts with $HCl$, $H_{2}$ gas is produced. If you double the concentration of $HCl$ while keeping the mass of $Mg$ (the limiting reactant) constant, what happens to the total volume of $H_{2}$ produced?

Which of the following is the correct reason why $CO_{2}$ is collected by downward delivery and not upward delivery?