Finding volume with mass and density
I know I need to divide Mass/Density. But would I use 44.95 or 274.95 for the mass?
Subtract the difference between the two.
Ok. That will give the mass of the water, right?
Yes
Ok. The density of water is 1.00 g/mL, so the answer is just 230 for the first part?
Did you put that in your calculator? I don't have one with me.
I did. For the second part, would I take the previous answer (M=D*V, so 1*230 is 230), and multiply it by the density of mercury?
Yes, you're using Mercury now.
I need help on the 2nd part
@Hero
Maybe part 2 is 3149.95?
the beaker can hold up to 274.95g when filled up now it's being filled with mercury, the mercury density IS NOT 1.00 g/mL, is 13.5 g/mL so, what do you think it'd weight?
For part 1 it weighed 274.95. What I done was take the volume the beaker holds (230 mL) and multiplied that by 13.5 and then added the mass of the beaker alone.
keep in mind they're asking on how much would it weight, including it's own weight when empty
ohh yeah,.... it's 230, my bad
so, 3105 is correct, NOT INCLUDING THE BEAKER
Would I need to add 44.95 to that for the final answer?
yes, -> "how much would the beaker and its contents weight" <--
btw, there's a hint there in red letters
I thought my last answer was right, but I posted anyway because I get 5% off per wrong submission.
Thanks
yw
would 3149.95 be ok or would I need to fix it to the right number of sig figs?
they're using floats, so I'd use the float, or decimals, unless instructed to round it up
It was right.
:)
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