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Chemistry: Post your doubts here!
if you made your calculations above correctly then you will have 0.04 moles of NaOH that reacted with ethanoic acid which means at equilibrium we will have 0.1-0.04= 0.06 moles of ethanoic acid at equilibrium. acid to alcohol ratio is 1:1 so also 0.06 moles of alcohol left at equilibrium and... -
Chemistry: Post your doubts here!
if its doubts about paper 2 you can disturb me the whole day !! its okay :) will do my best to answer your doubts -
Chemistry: Post your doubts here!
ofc!! because the next coming days i will be doing paper 5 mostly and i will need u and all the other paper 5 candidates to discuss stuff about it and doubts like how yesterday we kept discussing. i guess this will help us to score a good grade, right ? -
Chemistry: Post your doubts here!
i will need to read the whole question and do it and i am kind of busy now, i am sorry :/ -
Chemistry: Post your doubts here!
if a substance is oxidized then it is a reducing agent and if it is reduced then it is an oxidising agent -
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Chemistry: Post your doubts here!
alright see n= m/mr so for the basic carbonate nMr = m which is 1x (221+18x) and for the CuO m = 2 x 79.5 = 159 now mass of basic carbonate/ mass of CuO i = gradient..substitute the values and find x. did u get it ? make sure u make a big triangle on ur graph when finding your gradient to make... -
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Chemistry: Post your doubts here!
what did u label on the y axis and x axis ? -
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Chemistry: Post your doubts here!
the 4s has a lower energy level than the 3d therefore it is filled first and all elements get their 4sfilled first except for chromium and copper. -
Chemistry: Post your doubts here!
yes it can but not hydrogen bonds. this will be permanently dipole-dipole bonds -
Chemistry: Post your doubts here!
show ur graph when u r done pls!! -
Chemistry: Post your doubts here!
but will that affect the total mark of the paper? like for example if a question has been canceled because the majority of the candidates didn't do it and its worth 5 marks the total mark of the paper will be 95 for example instead of 100 ? -
Chemistry: Post your doubts here!
i didn't get this :S what do u mean ? -
Chemistry: Post your doubts here!
haha..whoever made this type of question surely wanted to make victims of this exam suffer a lot because this question is worth more than 5 marks even! but no if we talk in a pure chemistry language then we must convert to dm if we have our concentration in moldm^-3 -
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Chemistry: Post your doubts here!
thank you. by the way in the examiner report it doesnt show that he divided by 1000 to convert to dm and he used cm..why is that? :/ -
Chemistry: Post your doubts here!
did u read the examiner report of this question ?