Stoichiometry and Volumetric Analysis
JUPEB Chemistry
12 Stoichiometry and Volumetric Analysis practice questions covering everything you need for JUPEB.
Drill Stoichiometry and Volumetric Analysis →Sample Stoichiometry and Volumetric Analysis questions
Calculate the molar mass of calcium carbonate, CaCO$_3$. (Ca = 40, C = 12, O = 16)
How many moles are there in 8 g of oxygen gas, O$_2$? (O = 16)
What volume does 0.5 mol of a gas occupy at s.t.p.? (Molar volume at s.t.p. = 22.4 dm$^3$)
What mass of sodium hydroxide is needed to prepare 250 cm$^3$ of a 0.2 mol dm$^{-3}$ solution? (NaOH = 40)
25.0 cm$^3$ of 0.1 mol dm$^{-3}$ NaOH was exactly neutralised by 20.0 cm$^3$ of hydrochloric acid. Calculate the concentration of the acid.
Calculate the percentage by mass of nitrogen in ammonium nitrate, NH$_4$NO$_3$. (N = 14, H = 1, O = 16)
What volume of 0.2 mol dm$^{-3}$ NaOH is required to neutralise 25 cm$^3$ of 0.1 mol dm$^{-3}$ H$_2$SO$_4$?
A compound contains 40.0% carbon, 6.67% hydrogen and 53.33% oxygen by mass. Find its empirical formula. (C = 12, H = 1, O = 16)
4 g of hydrogen is burnt in 16 g of oxygen according to 2H$_2$ + O$_2$ → 2H$_2$O. What mass of water is formed? (H = 1, O = 16)
How many molecules are present in 0.5 mol of carbon dioxide? (Avogadro's constant $= 6.02 \times 10^{23}$ mol$^{-1}$)
50 cm$^3$ of a 2.0 mol dm$^{-3}$ solution is diluted with water to 500 cm$^3$. What is the new concentration?
What mass of carbon dioxide is produced when 10 g of calcium carbonate is completely decomposed by heating? CaCO$_3$ → CaO + CO$_2$ (CaCO$_3$ = 100, CO$_2$ = 44)