Convert g/cm^3 to kg/m^3?
The density of a substance is 12.9 g/cm^3.
What is this value in kilograms per cubic meter?
please show steps..
- Michael Dino CLv 41 decade agoFavorite Answer
Dimensional analysis comes in handy here.
basically you can forget the 12.9 and just work on the units.
g / cm^3
how many g in a kg? 1000
how many cm^3 in a m^3?
well let's break that down into smaller parts first...
how many cm in a m? 100
so in a m^3 there should be 100*100*100 cm^3. right?
so there are 1 000 000 cm^3 in a m^3
now, we take this information and get to work
12.9g / cm^3 * 1 kg / g * 1 000 000 cm^3 / m^3 = 12 900 kg/m^3
in that equation, the g cancel out and the cm^3 cancel out .
also you could try google. :PSource(s): my brain http://www.google.ca/search?hl=en&rlz=1C1CHNG_enCA...
- ?Lv 41 decade ago
1000g = 1 Kg
100cm = 1m
10,000cm^2 = 1m^2
1,000,000cm^3 = 1m^3
Divide the g/cm^3 by 1000 to get Kg/cm^3
Multiply the Kg/cm^3 by 1,000,000 to get Kg/m^3