Posted by Ania on Friday, February 22, 2008 at 9:30am.
19. A block of aluminum has a volume of 126.5 cm3. Its density = 2.70 g/cm3. What is the mass
of the aluminum?
A) 342 g
B) 46.9 g
C) 127 g
D) 0.0213 g
E) 124 g
The answer is A.....But I still can't figure it out....I keep getting D as an answer..

CHEM PLZ URGENT!!  bobpursley, Friday, February 22, 2008 at 9:36am
mass= density*volume

CHEM PLZ URGENT!!  drwls, Friday, February 22, 2008 at 9:46am
You are dividing density by volume instead of multiplying. BobPursley gave your the correct formula to use.

CHEM PLZ URGENT!!  Damon, Friday, February 22, 2008 at 4:55pm
check your units
2.70 g/cm^3 * 126.5 cm^3
units are
g cm^3/cm^3
the cm^3 cancel
and you are left with g, grams
If you do it upside down somehow, you will end up with cm^6 which you know right off is wrong.
Answer This Question
Related Questions
 Chemistry  Thank you so much for the help on my other question!!! An alloy (...
 Chemistry  A block of aluminum with a volume of 98.5 cm3 absorbs 67.4 J of heat...
 Chemistry  A block of aluminum with a volume of 98.5 cm3 absorbs 67.4 J of heat...
 chemitry  A block of aluminum with a volume of 98.5 cm3 absorbs 67.4 J of heat...
 Chemistry I  A block of aluminum with a volume of 96.6 cm3 absorbs 66.6 J of ...
 physics  To determine the density of block of aluminum, you measured the mass ...
 conversion problems  Im not sure how to convert these because of the cm cubed ...
 Chemistry  A homogenous mixture of metals is called an alloy. An alloy is found...
 chemistry  The density of aluminum is 2.70g/cm3 and the density of chromium is ...
 Physical Science  A 2.9kg pile of aluminum ( = 2.70 g/cm3) cans is melted, and...
More Related Questions