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I'm supposed to make measurements but the values decrease?
It makes no sense to me.
are you just reading? i see 1.2, 6.65, 12.09
Yes, but are the cylinders upside down?
Why does it go from greatest to least?
yes the value can decrease because of cohesive forces :)
But are the numbers in a measuring cylinder in that order?
maybe :) |dw:1440966180005:dw|
where/what is the complete question?
I think the idea is to make sure you read at the bottom of the meniscus
It's from my intro to chemistry course, measurements and significant figures lesson.
so you are just identifying what each unit mark means
So is it 2.2 mL, 0.4 mL, and 0.9mL?
where did you get those values?
I looked at the greatest number... and subtracted.. but nvm I'm just so confused, do you understand this?
take a deep breath
applying this to chemistry I still think you are just learning to read at the bottom of the meniscus and to identify the value
look at the first one
the bottom of the curve (the meniscus) is at the second marker and each marker is 0.1 so the measurement is 1 + 2*.1 = 1.2
But why are the numbers in that order?
Was it a typo?
the 2nd one the "line is between the .6 and the .7 and we have 6 whole units reading is 6 + 0.6 + 0.05 = 6.65
So it doesn't matter how it looks? I'm sorry if I'm sound obsessed but I was just confused because in real life a graduated cylinder looks different. lol
no I think we read right side up
I can't go back that far to think what a measuring cylinder in the lab looks like sad
do you see why the last reading was not 0.9 but 0.09 for the partial?
Because it doesn't touch the line? it looks like there is a space of about 0.01 between?