Flashcard on Gas Laws and Measurements

Front

"Accuracy" in scientific measurements

Back

How close a measurement is to the true value

Front

How many significant figures are in the number 0.00450?

Back

3

Front

Back

Front

Which gas law states that the volume of a gas is directly proportional to the number of moles at constant temperature and pressure?

Back

Avogadro's Law

Front

What does the kinetic molecular theory primarily explain?

Back

The behavior of gas particles

Front

Which of the following numbers is correctly rounded to three significant figures? Options: 0.004567 → 0.00456, 12345 → 12300, 98.765 → 98.8, 0.09999 → 0.100

Back

98.765 → 98.8

Front

Which of the following is an example of precision?

• Measurements are all close to the accepted value
• Measurements are all close to each other
• Measurements are all different
• Measurements are all incorrect

Back

Measurements are all close to each other

Front

How many significant figures are in the measurement 200.0 g?

Back

4

Front

Which of the following is NOT an assumption of the kinetic molecular theory?

• Gas particles are in constant, random motion
• Gas particles have attractive forces between them
• The volume of gas particles is negligible compared to the container
• Collisions between gas particles are elastic

Back

Gas particles have attractive forces between them

Front

What is the combined gas law equation?

Back