| What to create | Quiz |
| Which subject | Chemistry |
| What age group | Year or Grade 9 |
| What topic | Mole |
| Question types | Mixed |
| Number of questions | 10 |
| Number of answers | 4 |
| Correct answers | Exactly 1 |
| Show correct answers | |
| Use images (descriptions) | |
| Any other preferences |
Welcome to the Year 9 Chemistry Quiz focused on the concept of the mole! Please answer the following questions to the best of your ability. Good luck!
What is a mole?
(Define the term without choices.)
How many entities are in one mole of a substance?
A. 6.02 x 10²³
B. 1.5 x 10²²
C. 3.01 x 10²⁶
D. 1.0 x 10²⁴
What is the molar mass of carbon (C)?
A. 6 g/mol
B. 12 g/mol
C. 16 g/mol
D. 14 g/mol
If you have 2 moles of water (H₂O), how many molecules of water do you have?
(Calculate the number of molecules without choices.)
The formula for calculating the number of moles is:
A. Moles = mass (g) / molar mass (g/mol)
B. Moles = volume (L) / density (g/mL)
C. Moles = temperature (K) x pressure (Pa)
D. Moles = number of particles x molar mass
Which of the following elements has a molar mass closest to 32 g/mol?
A. Oxygen (O)
B. Sulphur (S)
C. Nitrogen (N)
D. Argon (Ar)
If you have 0.5 moles of sodium chloride (NaCl), what is the mass of sodium chloride in grams?
(Calculate the mass without choices.)
What is the significance of Avogadro's number in chemistry?
(Explain the significance without choices.)
How many moles are contained in 50 grams of sodium (Na), with a molar mass of 23 g/mol?
A. 0.5 moles
B. 2.17 moles
C. 1.11 moles
D. 1.5 moles
Which of the following best describes a mole in terms of a counting unit?
A. It is a measure of pressure.
B. It is a measure of volume.
C. It is a measure of the amount of substance.
D. It is a unit of temperature.