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no problemoh okay,Thanku Very Much
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no problemoh okay,Thanku Very Much
could u please confirm me if the column headings in Q2(a) are:no problem
sorrycould u please confirm me if the column headings in Q2(a) are:
mass of water(C-B)
mass of solid(D-C)
solubility(F/E) into 100
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s11_ms_52.pdf
i just checked it,im confused about the solubility part but other than that,we find the solid by subtracting ' (D) mass of boiling tube,water and solid' from ' (C) mass of boiling tube and water' OR we find solid by subtracting ' (E) mass of water' from ' (D) mass of boiling tube,water and solid' ?? please help me out i will be very gratefullook at the thread chem p5 tips..we were discussing it a few mins ago
i just checked it,im confused about the solubility part but other than that,we find the solid by subtracting ' (D) mass of boiling tube,water and solid' from ' (C) mass of boiling tube and water' OR we find solid by subtracting ' (E) mass of water' from ' (D) mass of boiling tube,water and solid' ?? please help me out i will be very grateful
thanxmass of solid = D - C
tell me when u get the answer to this never been answered before quedtionhow to prepare for the chemistry practical??
Answer is C ... how?
- Use of the Data Booklet is relevant to this question.
A sample of propyl ethanoate is hydrolysed by heating under reflux with aqueous sodium
hydroxide. The two organic products of the hydrolysis are separated, purified and weighed.
Out of the total mass of products obtained, what is the percentage by mass of each product?
A 32.4 % and 67.6 %
B 38.3 % and 61.7 %
C 42.3 % and 57.7 %
D 50.0 % and 50.0 %
https://www.xtremepapers.com/community/threads/tips-for-chemistry-practicals-p3.11810/ got it..tell me when u get the answer to this never been answered before quedtion
Give me an example of what u mean..can anyone help me with the presentation of data collected and the tables , how to make them , what should be in the table etc ?????
http://papers.xtremepapers.com/CIE/... AS Level/Chemistry (9701)/9701_w12_qp_34.pdfGive me an example of what u mean..
Make three columns each with one of the FB's and then record ur observations with each of the reagents u add. I'm sorry of my answer is a bit vague- i'm in A2, but i was pretty good with the tables.http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w12_qp_34.pdf
like in Q2 )a) how to show the result ??
here add the labelshttp://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w12_qp_34.pdf
like in Q2 )a) how to show the result ??
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