How to Calculate Molarity | Chemistry Made Easy

The video tutorial explains the concept of molarity in chemistry, detailing how it represents the concentration of a solution. It introduces the formula for calculating molarity and demonstrates the triangle method for solving related problems. The tutorial includes several examples, illustrating how to calculate molarity, moles, and liters, and addresses more complex problems involving unit conversions.

What is the unit used to express molarity in chemistry?

• Lowercase m

• Capital M

• Lowercase c

• Capital C

When using the triangle method, what operation do you perform if you are solving for molarity?

• Divide moles by liters

• Divide liters by moles

• Multiply liters by molarity

• Multiply moles by liters

In the triangle method, what do you do if the problem asks for moles?

• Cover up liters and divide

• Cover up liters and multiply

• Cover up molarity and multiply

• Cover up moles and multiply

How do you calculate the molarity of a solution with 0.038 moles of solute in 1.1 liters of solution?

• 0.0345 M

• 0.345 M

• 3.45 M

• 0.00345 M

If a problem asks for grams instead of moles, what should you do after finding moles?

• Subtract the molar mass

• Multiply by the molar mass

• Divide by the molar mass

• Add the molar mass

What is the first step in solving a complex molarity problem involving grams and milliliters?

• Convert grams to moles

• Convert milliliters to moles

• Convert grams to liters

• Convert milliliters to grams

In a complex molarity problem, how do you convert milliliters to liters?

• Multiply by 1000

• Subtract 1000

• Divide by 1000

• Add 1000