Chemical Reactions and Molar Mass

The video tutorial demonstrates an experiment involving calcium carbonate and cleaning vinegar. It begins with measuring the mass of an empty beaker, calcium carbonate, and vinegar. The molar mass of calcium carbonate is calculated, and the reaction with vinegar is explained, highlighting the production of carbon dioxide and calcium acetate. The fizzing reaction is observed, similar to a Mentos and soda reaction. The experiment concludes with a discussion on the results, emphasizing the formation of calcium acetate.

What is the initial mass of the empty beaker?

• 15.940 grams

• 15.260 grams

• 25.000 grams

• 20.483 grams

What is calcium carbonate commonly found in?

• Tums tablets

• Baking soda

• Sugar

• Table salt

How is cleaning vinegar different from regular vinegar?

• It is sweeter

• It is more acidic

• It is stronger

• It is weaker

What is the molar mass of calcium carbonate composed of?

• Calcium, hydrogen, and oxygen

• Calcium, carbon, and three oxygen atoms

• Carbon, hydrogen, and oxygen

• Calcium, carbon, and two oxygen atoms

What does the calculation of moles help determine?

• The volume of a substance

• The color of a substance

• The number of molecules

• The density of a substance

What is a limiting reactant in a chemical reaction?

• A reactant that does not react

• A reactant that changes color

• A reactant that is completely used up

• A reactant that is in excess

What gas is produced during the reaction between acetic acid and calcium carbonate?

• Carbon dioxide

• Nitrogen

• Oxygen

• Hydrogen

What is the visual comparison made to describe the reaction?

• Boiling water

• Mentos in Pepsi

• Melting ice

• Baking a cake

What is the final product left after the reaction?

• Calcium nitrate

• Calcium sulfate

• Calcium acetate

• Calcium chloride

Is calcium acetate safe to consume?

• Yes, but not recommended

• Yes, it is safe

• No, it is toxic

• No, it is explosive