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Chemistry 8 Online
OpenStudy (kimjafo):

What is the mass of a cube of aluminum that is 4.0 cm on each edge? The density of aluminum is 2.7 g/cm3.

OpenStudy (korosh23):

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OpenStudy (korosh23):

You have the density and the dimensions of the cube. Find the volume of the cube from the dimentions

OpenStudy (korosh23):

Volume of the cube = 4 x 4 x 4= 64 cm^3 Put back the numbers in the formula you got density was 2.7 g/cm^3 |dw:1427060619604:dw|

OpenStudy (korosh23):

times 2.7 and 64 across|dw:1427060708178:dw|

OpenStudy (korosh23):

|dw:1427060757942:dw|

OpenStudy (korosh23):

In chemistry, you have to round your answers to the correct sig figs. http://www.purplemath.com/modules/rounding2.htm This is a good website about significant rules. If you had any question feel free to ask me. If my answer was helpful, give me a medal and write me a fan testimonial. I appreciate it. Thank you.

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