Understanding Chemistry Problem Solving Techniques

The video tutorial by Donatelli and the instructor demonstrates a chemistry problem-solving technique. It emphasizes the importance of setting up problems correctly, identifying given and unknown values, and using conversion factors. The tutorial explains how to write conversion factors in different ways and apply them to cancel units and solve problems. The final section covers performing calculations and verifying the solution to ensure accuracy.

Why is it important to learn the technique shown in the video?

• It is a faster method than others.

• It simplifies all chemistry problems.

• It helps in solving more complex problems later.

• It is the only way to solve chemistry problems.

What is the first step in solving a chemistry problem according to the video?

• Write down the unknown.

• Find the conversion factor.

• Write down the given.

• Cancel out the units.

What is the relationship between moles and atoms?

• One mole is equal to 6.02 times 10 to the 23rd atoms.

• One mole is equal to 12 atoms.

• One mole is equal to 1 atom.

• One mole is equal to 100 atoms.

Why is it important to write conversion factors both ways?

• To see which version to use for unit cancellation.

• To make the problem look complex.

• To confuse the students.

• To avoid using any conversion factor.

What should you do after writing down the given in a problem?

• Multiply it by the conversion factor.

• Write down the unknown.

• Solve the entire problem.

• Cancel out the units.

How do you decide which conversion factor to use?

• Choose the one that looks simpler.

• Choose the one with moles in the numerator.

• Choose the one that cancels out the given unit.

• Choose the one with the unknown in the numerator.

What is the result of multiplying 3 moles by 6.02 times 10 to the 23rd atoms?

• 18.06 atoms

• 18.06 times 10 to the 23rd atoms

• 18.06 moles

• 18.06 times 10 to the 23rd moles

Why is it important to track your units throughout the problem?

• To avoid using conversion factors.

• To make the problem more complex.

• To ensure you end up with the correct units.

• To simplify the problem.

What should you do if you end up with the wrong units at the end of a problem?

• Ignore it and move on.

• Start the problem over from scratch.

• Recheck your conversion factors and calculations.

• Change the units to match the unknown.

What is the worst mistake you can make when solving a problem?

• Putting the wrong units at the end.

• Using the wrong conversion factor.

• Not writing down the given.

• Not multiplying correctly.