Electrolysis Calculations Quiz

What is the main topic of this lesson?

• Electrolysis calculations

• Organic chemistry

• Physics fundamentals

• Biology basics

What is Faraday's constant used for in electrolysis calculations?

• To measure temperature

• To calculate the charge per mole of electrons

• To determine the speed of reaction

• To find the volume of gas produced

In the electrolysis of Manganese Chloride, how many moles of electrons are needed to produce one mole of Manganese?

• Four moles

• One mole

• Two moles

• Three moles

What is the SI unit for electric charge?

• Volt

• Ohm

• Ampere

• Coulomb

How do you convert moles of a substance to grams?

• Divide by the molar mass

• Multiply by the molar mass

• Subtract the atomic number

• Add the atomic number

What is the purpose of multiplying by the molecular weight in the top equation?

• To convert grams to moles

• To convert moles to grams

• To find the number of electrons

• To determine the reaction time

What is the molecular weight of Aluminum used in the example problem?

• 40 grams per mole

• 54 grams per mole

• 13 grams per mole

• 27 grams per mole

In the example problem, what is the current used to plate out Aluminum?

• 75 Amps

• 100 Amps

• 150 Amps

• 50 Amps

How many moles of electrons are required to produce one mole of Aluminum from AlCl3?

• Four moles

• Two moles

• One mole

• Three moles

What is the final step in solving for time in the Aluminum Chloride example?

• Multiply by the current

• Divide by the molecular weight

• Add the number of moles

• Convert seconds to minutes