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 […]
molecular formula
12 Days of Chemical Calculations – 8
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 […]
12 Days of Chemical Calculations – 7
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
12 Days of Chemical Calculations – 5
Mole calculations What mass of carbon monoxide is needed to react with 1 kg of iron oxide? Fe2O3 + 3 CO –> 2 Fe + 3 CO2
