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WebForm 3 Chemistry Video Questions and Answers on Gas Laws. Learn through well answered past exams questions. Lessons ( 12 ) SHARE 1. A given volume of ozone ( O 3), diffused from a certain apparatus in 96 seconds. Calculate the time taken by an equal volume of carbon (IV) oxide to diffuse under the same conditions (O=16.0,C=12.0 3m 48s 2. WebThis substitution may occur many times in an alkane before the reaction is finished. Combustion. Alkanes, along with all other types of hydrocarbon, will burn in an excess of oxygen to give carbon dioxide and water only as … WebJan 31, 2024 · Calculate the number of moles of sodium hydroxide in 25cm 3 of solution R. (2 marks) Calculate the concentration of sodium hydroxide solution R in moles per litre (2 marks) PROCEDURE II. Using a 100cm 3 measuring cylinder, measure 90cm 3 of distilled water and transfer it into a 250cm 3 beaker. harry styles lights up video