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WorksheetsLECTURE WEEK 2 (SUBTOPIC 1.2 & 1.3)
Total questions: 6
Worksheet time: 2mins
Choose the correct statements for molarity
Number of moles of solute dissolved in 1 kg of solvent
Total number of moles of solutes n solvent in the solution
The ratio of the number of moles of a component to the total number of moles present in the solution.
Number of moles of solute in 1L of solution
The ratio of the mass of a solute to the mass of the solution, multiplied by 100 percent is defined as
molarity
percentage by mass
percentage by volume
molality
Solution contains
solute and solvent
solvent only
solute only
does not contain anything
The unit for molality is
mol L⁻¹
mol dm⁻³
mol kg⁻¹
molar
Br⁻ and BrO₃⁻
MnO4⁻ and MnO₂
Br⁻ and MnO₄⁻
BrO₃⁻ and MnO₂
Limiting reactant is
A) the reactant that is completely consumed in a reaction and limit the amount of products formed
B) the reactant that has smallest number of moles
C) the reactant that is completely consumed in a reaction
D) the reactant that is used up first in the chemical reaction
