Marble Chips and Hydrochloric Acid Experiment

The video tutorial explains the reaction of calcium carbonate with hydrochloric acid, aiming to determine the reaction order with respect to hydrochloric acid. It provides detailed instructions for setting up and conducting the experiment, including measuring the volume of carbon dioxide produced. The data collected is analyzed by plotting graphs to determine the reaction order. The tutorial also offers an alternative method for data collection if the experiment cannot be conducted in class.

What is the main component of marble chips used in the experiment?

• Calcium carbonate

• Sodium chloride

• Magnesium oxide

• Potassium sulfate

What is the purpose of the experiment involving marble chips and hydrochloric acid?

• To find the order of reaction with respect to hydrochloric acid

• To calculate the pH of the solution

• To determine the solubility of marble chips

• To measure the temperature change

What should be checked before starting the experiment with the gas syringe?

• The weight of the gas syringe

• The airtightness of the apparatus

• The color of the marble chips

• The pH of the hydrochloric acid

How much hydrochloric acid is poured into the measuring cylinder for the experiment?

• 10 cm³

• 5 cm³

• 20 cm³

• 15 cm³

What is recorded at 10-second intervals during the experiment?

• The weight of the marble chips

• The volume of gas collected

• The color change of the solution

• The temperature of the reaction

What does a straight line with a negative gradient on the graph indicate about the reaction order?

• Zero order

• Second order

• First order

• Third order

If the half-lives are constant, what is the order of the reaction with respect to hydrochloric acid?

• Zero order

• First order

• Third order

• Second order

What is the significance of V final in the experiment?

• It indicates the temperature of the reaction

• It measures the weight of the marble chips

• It is the steady reading of carbon dioxide at the end of the experiment

• It represents the initial volume of hydrochloric acid

What should be done if the experiment cannot be conducted in class?

• Skip the experiment

• Change the concentration of hydrochloric acid

• Use a different chemical reaction

• Collect data from a similar experiment

What is the role of the stopwatch in the alternative data collection method?

• To measure the temperature

• To time the reaction

• To record the pH level

• To weigh the marble chips