Calculating Molar Mass of Compounds

The video tutorial explains how to calculate the molar mass of copper(II) chloride (CuCl2). It begins by identifying the need to find the molar mass and proceeds to use the periodic table to find the atomic masses of copper and chlorine. The tutorial then demonstrates how to calculate the total mass of chlorine by considering the two chlorine atoms in the compound. Finally, it sums up the masses to find the molar mass of CuCl2, concluding with a brief thank you.

What is the first step in finding the molar mass of CuCl2?

• Determine the number of moles of CuCl2.

• Look up the atomic masses on the periodic table.

• Measure the temperature of CuCl2.

• Calculate the volume of CuCl2.

What is the atomic mass of copper used in the calculation?

• 65.38 grams per mole

• 60.09 grams per mole

• 63.55 grams per mole

• 58.93 grams per mole

What is the atomic mass of chlorine used in the calculation?

• 30.97 grams per mole

• 32.07 grams per mole

• 40.08 grams per mole

• 35.45 grams per mole

How many chlorine atoms are considered in the calculation for CuCl2?

• Two

• One

• Three

• Four

What is the total molar mass of CuCl2?

• 98 grams per mole

• 120 grams per mole

• 150 grams per mole

• 134 grams per mole