A density of 1.5 g cm-3 is equivalent to:

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Discussion Overview

The discussion revolves around the equivalence of a density of 1.5 g cm-3 in various units, exploring conversions to grams per liter and kilograms per liter. Participants engage in reasoning about the relationships between different volume and mass units.

Discussion Character

  • Mathematical reasoning
  • Debate/contested

Main Points Raised

  • One participant suggests that a density of 1.5 g cm-3 is equivalent to 1.5x10-3 Kg L-1.
  • Another participant expresses uncertainty about their choice, indicating they think option c might be wrong.
  • A participant attempts to clarify the conversion process, stating that 1 cm3 is equivalent to 1000 dm3 (or 1 L), and suggests multiplying 1.5 by this conversion factor.
  • One participant challenges the assumptions made in the conversion, pointing out a misunderstanding regarding the notation of cm3 and cm/3, and asserts that the correct interpretation leads to the right conclusion.
  • Another participant acknowledges their earlier mistakes while reinforcing the concept that needed to be applied for the conversion.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the correct equivalence of the density. There are competing views and some confusion regarding the conversion process and notation.

Contextual Notes

There are unresolved issues regarding the assumptions made in the conversion process and the notation used, particularly the distinction between cm3 and cm/3.

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A density of 1.5 g cm-3 is equivalent to:

a. 1500 g L-1

b. 150 g L-1

c. 1.5x10^-3 Kg L-1

d. 15 g L-1
 
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So, what do you think?
 
chemisttree said:
So, what do you think?

i would think is c but I am sure its wrong
 
If you can explain your choice, it will be obvious I'm sure.
 
1cm=10dm
1cm/3= 1000dm/3 (since 10^3=1000)
1dm=1L
1000dm/3=1000L

Therefore your task here is to multiply 1.5 by the equivalent of 1 cm/3 in Liters :)
 
Last edited:
Kennedy619 said:
1cm=10dm

No. 1dm=10cm

1cm/3= 1000dm/3 (since 10^3=1000)

You started with the wrong assumption, so this is wrong as well. Note that 1cm/3 and 1cm3 are two different things. I suppose you wanted to write cm^3.

1dm=1L

And miraculously this is correct.
 
Borek said:
No. 1dm=10cm



You started with the wrong assumption, so this is wrong as well. Note that 1cm/3 and 1cm3 are two different things. I suppose you wanted to write cm^3.



And miraculously this is correct.


Oh yeah, I did make a few mistakes. Fortunately, I remembered and put down the concept of what had to be done.
 

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