Calculating Molar Mass of HBr

The video tutorial explains how to calculate the molar mass of hydrogen bromide (HBr). It begins by identifying the molar mass of hydrogen and bromine using the periodic table. The molar mass of hydrogen is 1.01 grams per mole, and bromine is 79.9 grams per mole. By adding these values, the total molar mass of HBr is determined to be 80.91 grams per mole. The video concludes with a summary of the calculation process.

What is the first step in determining the molar mass of a compound like HBr?

• Mix the compound with water.

• Consult the periodic table for atomic masses.

• Heat the compound to a high temperature.

• Measure the volume of the compound.

What is the atomic mass of hydrogen used in the calculation of HBr's molar mass?

• 1.01 grams per mole

• 2.02 grams per mole

• 1.10 grams per mole

• 1.00 grams per mole

Which element's atomic mass is added to hydrogen's to find the molar mass of HBr?

• Fluorine

• Iodine

• Bromine

• Chlorine

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

• 78.9 grams per mole

• 77.9 grams per mole

• 80.9 grams per mole

• 79.9 grams per mole

What is the total molar mass of HBr calculated in the video?

• 82.91 grams per mole

• 79.91 grams per mole

• 80.91 grams per mole

• 81.91 grams per mole