#1
What is the definition of a mole in chemistry?
#2
Which of the following is NOT a unit for expressing the number of atoms or molecules?
#3
What is the molar mass of water (H2O)?
#4
What is the formula for calculating the number of moles?
#5
What is the Avogadro constant?
#6
Which gas law states that the volume of a gas is directly proportional to its temperature?
#7
Which gas law describes the relationship between pressure and volume, keeping temperature constant?
#8
What is the ideal gas law equation?
#9
At standard temperature and pressure (STP), what is the volume occupied by one mole of any gas?
#10
What does the term 'stoichiometry' refer to in chemistry?
#11
In a chemical reaction, if one reactant is in excess, what happens to the other reactants?
#12
What is the volume of 1 mole of an ideal gas at 0°C and 1 atm pressure?
#13
What is the volume occupied by 3 moles of oxygen gas (O2) at STP?
#14
What is the formula to calculate the density of a gas?
#15
What is the volume of 2 moles of an ideal gas at STP?
#16
What is the molarity of a solution containing 0.5 moles of solute dissolved in 1 liter of solvent?
#17
How many grams of hydrogen gas (H2) are required to produce 18 grams of water (H2O) according to the reaction: 2H2 + O2 → 2H2O?
#18
What is the volume of 0.5 moles of nitrogen gas (N2) at STP?
#19