Acid and Base Test

What is the pH scale?

• A numerical scale ranging from 0 to 14 that measures the acidity or alkalinity of a solution.

• A scale that measures the temperature of a solution.

• A scale that indicates the concentration of dissolved oxygen in water.

• A scale used to measure the density of liquids.

What ions do acids release in water?

• Hydrogen ions (H+)

• Sodium ions (Na+)

• Chloride ions (Cl-)

• Calcium ions (Ca2+)

What is the significance of the pH scale in everyday life?

• It measures the temperature of liquids.

• It helps in understanding the acidity of foods, beverages, and environmental conditions.

• It indicates the nutritional value of food.

• It determines the color of substances.

What is the pH range of acidic solutions?

• 0 to 5

• 0 to 7

• 5 to 10

• 7 to 14

What is the relationship between pH and hydrogen ion concentration?

• The pH of a solution is directly related to the concentration of hydrogen ions; as H+ concentration increases, pH increases.

• The pH of a solution is inversely related to the concentration of hydrogen ions; as H+ concentration increases, pH decreases.

• The pH of a solution has no relationship with the concentration of hydrogen ions.

• The pH of a solution is only affected by temperature, not by hydrogen ion concentration.

What is the role of acids in chemical reactions?

• Acids can donate protons (H+) to other substances, facilitating various chemical reactions.

• Acids are used to neutralize bases in chemical reactions.

• Acids increase the pH level of solutions, making them more alkaline.

• Acids act as catalysts in chemical reactions, speeding up the process.

What is the pH range of neutral solutions?

• 5

• 7

• 9

• 10

What is the difference between a strong acid and a weak acid?

• A strong acid partially dissociates in water, while a weak acid completely dissociates.

• A strong acid has a higher pH than a weak acid.

• A strong acid completely dissociates in water, while a weak acid only partially dissociates.

• A strong acid is less corrosive than a weak acid.

What is an example of a common acid?

• Vinegar

• Baking Soda

• Salt

• Sugar

What is an example of a food that is acidic?

• Orange juice

• Rice

• Potato

• Chicken