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Chemistry Paper 6 Variant 2 Last Question HELP!

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Vampaneze_Lord

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Guys I am doing great in paper 6 in chemistry but THE LAST QUESTION ALWAYS KNOCKS ME OFF! PLEASE I NEED HELP ! ANY TIPS? Those questions are usually for 6 marks and always about experimental techniques please i need help in them ! please ! :( my exam is in a couple of days ! Please ! Any help would be appreciated thank you :)
 
Pagalsai

Pagalsai

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Take 50 cm3 of the base (I think it's Potassium Hydroxide ) in a conical flask and take 75 cm3 of the first brand (I forgot the name of the brand) in the burette. Add an indicator like methyl-orange and and add acid till the colour of the indicator changes from orange to red. Repeat the experiment with the second brand. The brand which take lesser volume in the burette contains the most amount of citric acid and the brand which takes more volume in the burette is the least amount of citric acid

I think people could have easily scored 6 marks .... This question is repeated :D
 
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