12 Experimental techniques and chemical analysis

Practice questions on Experimental techniques and chemical analysis

• A factory produces crude coconut oil that contains small solid plant fibres and excess wat… (4 marks, Describe)
• A student wants to find out whether the mass of a catalyst affects the rate of decompositi… (4 marks, Describe)
• A student has a mixture of sand and salt dissolved in water. Describe how the student coul… (4 marks, Describe)
• A student notices that the burette used in a titration was not rinsed with the acid soluti… (4 marks, Explain)
• A student carries out a titration to find the concentration of a solution of sodium hydrox… (4 marks, Explain)
• A student wants to investigate whether the surface area of wood affects how quickly it bur… (4 marks, Describe)
• A student investigates whether the concentration of hydrochloric acid affects the rate of … (4 marks, Describe)
• A student wants to find out whether the type of metal affects how quickly it reacts with d… (4 marks, Describe)
• Describe how a student would carry out an acid-base titration to find the volume of hydroc… (4 marks, Describe)
• A student wants to find out whether increasing the temperature of a reaction between marbl… (4 marks, Describe)
• Describe how paper chromatography can be used to find out whether a sample of ink contains… (4 marks, Describe)
• A food scientist uses paper chromatography to analyse the colouring agents present in two … (4 marks, Explain)
• A student carries out a titration to determine the end point of a reaction between ethanoi… (4 marks, Explain)
• A student carries out a titration using phenolphthalein indicator to determine the volume … (4 marks, Explain)
• A student carries out paper chromatography to investigate the pigments present in a sample… (4 marks, Explain)
• A student uses paper chromatography to identify the amino acids present in a sample of pro… (4 marks, Explain)
• A forensic scientist uses paper chromatography to compare an ink sample taken from a forge… (4 marks, Explain)
• A student has prepared a sample of copper(II) sulfate crystals that are contaminated with … (4 marks, Describe)