Thursday

April 17, 2014

April 17, 2014

Posted by **Jessica** on Wednesday, June 1, 2011 at 5:36pm.

- Chemistry -
**DrBob222**, Wednesday, June 1, 2011 at 5:49pmmass = volume x density

Solve for volume.

Then, since this is a cube, the length, width, and height are equal. So

volume = L x W x H but since L = W = H, then

volume = L x L x L. Solve for L.

- Chemistry -
**Jessica**, Wednesday, June 1, 2011 at 6:22pmHello Dr Bob,, I am still a little confused is this what it will look like 13.5/2.70=5 then take 5*5*5=125

- Chemistry -
**DrBob222**, Wednesday, June 1, 2011 at 6:34pmClose but no cigar.

Volume = mass/density = 13.5/2.7 = 5.0 cc whis is ok to this point. Now,

volume = L x L x L

5 = L x L x L

5 = L^{3}; therefore,

L = cube root 5 OR

L = 5^{1/3}

(On your calculator, enter 5, then punch the y^x button, and type in .33333 (which is 1/3) and = to find the answer of 1.70997 which rounds to 1.71 cm to three significant figures.

- Chemistry -
**Jessica**, Wednesday, June 1, 2011 at 10:37pmThank you DR Bob

**Related Questions**

physics - A cube of aluminum is 4cm on each side.find the mass of the cube. (...

chemistry - The density of aluminum is 2.70g/cm3 and the density of chromium is ...

Physical Science - A 2.9-kg pile of aluminum ( = 2.70 g/cm3) cans is melted, and...

Physics - An aluminum cube that has an edge length of 7 cm. is placed in a ...

Chemistry - Aluminum has a density of 2.99 grams per cubic cm. and a specific ...

Chemistry - Aluminum has a density of 2.99 grams per cubic cm. and a specific ...

chemitry - A block of aluminum with a volume of 98.5 cm3 absorbs 67.4 J of heat...

Chemistry - You measure one edge of a cube using a meter stick marked in ...

chemistry - Mercury(Hg) has a density of 13.5 g/cm cubed. How much space would ...

physicals science - A 2.9-kg pile of aluminum ( = 2.70 g/cm3) cans is melted, ...