anonymous
  • anonymous
Just want to make sure i am doing this problem correctly, or if i am way off.. Imagine that you place a cork measuring 1.3cm x 5.5cm x 3.0cm in a pan of water and on top of the cork you place a small cube of lead measuring 1.15cm on each edge. The density of the cork is 0.235 g/cm^3 and the density of the lead is 11.35 g/cm^3. Will the combination of cork plus lead float or sink?
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
|dw:1441237294565:dw|
anonymous
  • anonymous
Lead ~ 1.15cm x 1.15cm x 1.15cm
anonymous
  • anonymous
First I got the Volume of each Volume Cork = 21.45cm^3 Volume Lead = 1.52cm^3 Then i got the mass of each Mass Cork = 5.04g Mass Lead = 17.252g I don't know what do do now though.

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More answers

anonymous
  • anonymous
Total mass = 22.292
anonymous
  • anonymous
If it floats, the density is less than 1.00g/mL or 1.00g/cm^3 If it sinks, the density is greater than 1.00g/mL or 1.00g/cm^3
anonymous
  • anonymous
You were correct on combining the masses, now combine the volume to get its combined density.
anonymous
  • anonymous
So would the combined density be .97g/cm^3? this is with the long calculations Because if you do just the densities combined it = 11.585.
anonymous
  • anonymous
Because water density is usually at 1.00g/ml
anonymous
  • anonymous
Yea, I got that also.
anonymous
  • anonymous
ok thanks, so it would float?
anonymous
  • anonymous
Nope, you not add it because the question is asking will the "combination" of both sink? Even if lead sinks, the cork would not.
anonymous
  • anonymous
Yes, it would.
anonymous
  • anonymous
wait what?
anonymous
  • anonymous
It would float because with the calculations the total density is less that 1g/ml
anonymous
  • anonymous
The lead is not dense enough to make the lead able to sink.
anonymous
  • anonymous
Savannah_Lynn13 ok thanks, so it would float? Yes, it would.
anonymous
  • anonymous
thank you.
anonymous
  • anonymous
Savannah_Lynn13 So would the combined density be .97g/cm^3? this is with the long calculations Because if you do just the densities combined it = 11.585. Nope, you not add it because the question is asking will the "combination" of both sink? Even if lead sinks, the cork would not.
anonymous
  • anonymous
No problem!
anonymous
  • anonymous
Nice work attempting to solve the problem.

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