Molar Mass and Composition of Ethyl Acetate

The video tutorial explains how to find the molar mass of ethyl acetate (C4H8O2) using its structural formula. It begins by identifying the number of carbon, hydrogen, and oxygen atoms in the molecule. The tutorial then uses the periodic table to find the atomic masses of these elements and calculates the molar mass by multiplying and adding these values. The final molar mass of ethyl acetate is determined to be 88.12 grams per mole.

What is the first step in finding the molar mass of ethyl acetate?

• Determine the volume of the substance

• Look at the periodic table

• Examine the structural formula

• Calculate the number of moles

How many carbon atoms are present in ethyl acetate?

• Five

• Four

• Two

• Three

How many oxygen atoms are in the molecular formula of ethyl acetate?

• One

• Two

• Four

• Three

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

• 14.01 grams per mole

• 16.00 grams per mole

• 12.01 grams per mole

• 1.01 grams per mole

Which element in ethyl acetate has an atomic mass of 12.01 grams per mole?

• Nitrogen

• Oxygen

• Carbon

• Hydrogen

What is the total molar mass of ethyl acetate?

• 100.12 grams per mole

• 88.12 grams per mole

• 60.05 grams per mole

• 44.05 grams per mole

What does the molar mass of 88.12 grams per mole signify?

• 88.12 grams of ethyl acetate is equal to one mole

• 88.12 grams of ethyl acetate is equal to two moles

• 88.12 grams of ethyl acetate is equal to three moles

• 88.12 grams of ethyl acetate is equal to half a mole