12 Days of Chemical Calculations – 9
Titration Calculations Quite a tough one for today… 13.8g of a solid monoprotic acid was dissolved in water and made up to 250 cm3. 25.0 cm3 portions of this were titrated against 0.25 mol dm-3 […]
Titration Calculations Quite a tough one for today… 13.8g of a solid monoprotic acid was dissolved in water and made up to 250 cm3. 25.0 cm3 portions of this were titrated against 0.25 mol dm-3 […]
Calculations involving solutions 25.0 cm3 of 0.04 mol dm-3 sodium hydroxide solution reacted with 20.75 cm3 of sulphuric acid in a titration. Give the chemical equation for the reaction and find the concentration of the […]
Calculations involving solutions What volume of 0.1mol dm-3 hydrochloric acid would react with 25 g of calcium carbonate and what volume of gas would be produced? CaCO3 + 2 HCl –> CaCl2 + CO2 + H2O
Mole calculations The reaction below is known as the Thermite reaction, which is used to form molten iron to mould iron train tracks together. What mass of aluminium powder is needed to react with 8.0 […]
Mole calculations What mass of carbon monoxide is needed to react with 1 kg of iron oxide? Fe2O3 + 3 CO –> 2 Fe + 3 CO2
Amount of substance Find the number of moles present in the following 12g Carbon12 32g Water (H2O) 50g Magnesium 100g Iron (III) Oxide (Fe2O3) 1,250 tonnesĀ Iron (III) Oxide (Fe2O3) Find the mass of substance when […]