Grade 8 · Chemistry
This quiz helps revise “The mole” in Chemistry for grade 8. It has 25 questions in five categories: Mole Basics, Counting Particles, Molar Mass, Mass ↔ Mole, Inside the Formula. Questions get harder as the points go up, from 100 to 500.
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
Which SI unit measures amount of substance?
Which lowercase Latin letter commonly represents amount of substance?
What constant links the…
In the gameAbout how many entities…
In the gameWhat entities are normally…
In the game
A graphite sample has 1.204 × 10²⁴ C atoms. Using Nₐ ≈ 6.02 × 10²³ mol⁻¹, what amount is this?
A sample has 3.01 × 10²³ Fe atoms. Using Nₐ ≈ 6.02 × 10²³ mol⁻¹, what amount is this?
How many S atoms…
In the gameHow many Cu atoms…
In the game1.505 × 10²⁴ O₂…
In the gameWhich unit is most often used for molar mass in school chemistry?
What is the molar mass of O₂ if Ar(O) = 16?
What is the molar…
In the gameWhat is the molar…
In the gameWhat is the molar…
In the game
What is the mass of 2 mol H₂O if M(H₂O) = 18 g/mol?
What is the mass of 0.5 mol N₂ if M(N₂) = 28 g/mol?
How many moles of…
In the gameHow many moles of…
In the gameWhat is the mass…
In the gameHow many moles of H atoms are in 1 mol of CH₄ molecules?
How many moles of atoms in total are in 2 mol of H₂O molecules?
How many moles of…
In the gameHow many moles of…
In the gameHow many moles of…
In the gameAll 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.