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I need help with question 1 a) b) c) & d)
The first three questtion you can read directly from the graph: a) 30 g b) 25 ml c) 45 g
For question d: Density is how much mass there is per volume, that is, if you got X grams in Y mililitres, you have a density of X/Y g/ml
i got a) 35 b) 50 c) 60
How did you get those results?
I looked at where the dots were OH WAIT ! i think im look at mass !
wait, i have no idea what im doing !
For example, for 40 mL substance A I looked at how high the line was at the 40mL mark, and it seems it is 30g high
but i still don't get what to do for d) ?
ok :P now, see what I wrote before? Density is how much mass there is per volume, that is, if you got X grams in Y mililitres, you have a density of X/Y g/mL, are you following?
Using the previous answers, for example for substance A we have there are 30g in 40 mL, therefore, it has a density of 30/40 g/mL
(or three quarters grams per mililitre)
don't you divide or multipy the thing ?
yeah, density is mass divided by volume (g/mL)
what substances am I supposed to find the density of ?
All three of them :P I did for A, now you can do it for B and C, you just have to divide the respective masses and volumes
thank -you ! :}
Tell me what you got when you are ready :)
density of the substances a) 0.75 b) 1 c) 1.5
That's what I got :) and you will also notice, that those are alse the values of the respective slopes in the graph ;)
IM SO SMART :)
Hehehe, cheers, mate, nice work :P
LOOL, Thanks for the help :D
No probs ;)