sorry i ws talking abt concentration..... i made 0.4 ,0.2,0.1,0.05 ...how many marks i ll loose?The concentrations u made wud have been there if they had asked us to half the already made concentrations. This was not a serial dilution.
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sorry i ws talking abt concentration..... i made 0.4 ,0.2,0.1,0.05 ...how many marks i ll loose?The concentrations u made wud have been there if they had asked us to half the already made concentrations. This was not a serial dilution.
I dont think so, because the difference in concentration is not 0.1%I made these concentrations since they wanted a difference of 0.1% between each successful conc. Will these be accepted because I feel they may be wrong?
0.4%, 0.32%, 0.26, 0.16 & 0.06
Me n my frnd wrote 0.5% cuz it took the least time for a color change to appear :Oyup thats what i did.
And the estimation of concentration in the sample was 0.3%?
the differences are 0.12% which when rounded is 0.1%. Then the next difference is 0.06% which when rounded is also 0.1%. Then finally the difference is 0.1%.I dont think so, because the difference in concentration is not 0.1%
Well im not sure but yeah more than 5 atleast since there were 2 tables where u had to put in these concentrations and for the last ques u were talking abt, the part whr u drew diagrams instead of writing down differences, u'll lose 2 or 3sorry i ws talking abt concentration..... i made 0.4 ,0.2,0.1,0.05 ...how many marks i ll loose?
how many tables u made n wht were exact headings ??Well im not sure but yeah more than 5 atleast since there were 2 tables where u had to put in these concentrations and for the last ques u were talking abt, the part whr u drew diagrams instead of writing down differences, u'll lose 2 or 3
Oh, I asked my teacher about it & she said that the examiners fooled us in that question. She said they were told to prepare the seeds in such a way that the outer coating was of glucose, therefore the actual answer was 0.4% which is the initial concentration. She said perhaps they'll accept answers close to 0.4%Me n my frnd wrote 0.5% cuz it took the least time for a color change to appear :O
so 0.3 or 0.5% wud be accepted? Well i hope soOh, I asked my teacher about it & she said that the examiners fooled us in that question. She said they were told to prepare the seeds in such a way that the outer coating was of glucose, therefore the actual answer was 0.4% which is the initial concentration. She said perhaps they'll accept answers close to 0.4%
We had to make 2 tables...how many tables u made n wht were exact headings ??
Yeah that's what she said. I hope so too!so 0.3 or 0.5% wud be accepted? Well i hope so
i got 0.3%, so did my teacher...Oh, I asked my teacher about it & she said that the examiners fooled us in that question. She said they were told to prepare the seeds in such a way that the outer coating was of glucose, therefore the actual answer was 0.4% which is the initial concentration. She said perhaps they'll accept answers close to 0.4%
how are people getting 0.5%? :SYeah that's what she said. I hope so too!
I got 0.32% too but she said they had told her to prepare it in that way but hopefully they will accept answers such as 0.3%i got 0.3%, so did my teacher...
yah, hopefullyI got 0.32% too but she said they had told her to prepare it in that way but hopefully they will accept answers such as 0.3%
i also made two tables ...in 1st one i wrpte vol of R , volume os water n percentage and in second %age of R ,observation,time taken an amount of sugar....We had to make 2 tables...
First one: Test tube number, Volume of distilled water, Volume of 0.4% reducing sugar, Concentration made. With units ofcourse.
Second one: Concentration of sample, time taken for initial colour change, color change, Conclusions
what did you write?? I was a bit confused :sThe differences in the last part between slide K1 and figure 2.4. What did u all write?
I wrote about the vascular bundles like in K1 they were in the centre and the xylem was start shaped. I wrote about the absence of pith and cambium in K1. and then the thickness of cortex. and also that there were more vascular bundles present in fig 2.4 than K1what did you write?? I was a bit confused :s
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