A mole of Pop Cans would reach to the sun and back how many times?

Question

I have this information so far:
1. Distance from the earth to the sun= 92,900,000 miles
2. Height of a Pop Can= 4.875 inches
which when converted to miles= 7.694 X 10^-5 miles
3. Height of a Mole of Pop Cans= 4.633 X 10^19 miles

Now, what do I do to find how many times it would go to the Sun and back?

Here's what I did, is it right?

92,900,000 miles / 4.633 X 10^19 miles
=2.00518023 X 10^26 times

Answer 1

Your calculation of the height of a pop can in miles is correct.
But, the question asks "reach to the sun and BACK" so you have to double the distance to the sun. But don't feel bad, Nick made the same mistake here:

http://answers.yahoo.com/question/index?qid=20071115173201AAToiW6

Also, the distance to the sun and back should be the divisor, not the dividend. For example, if the question was how many three inch lengths can you cut from a yard stick the answer would be 36/3 = 12, not 3/36
Correct calculation:
(7.694 x 10^(-5) mi)(6.02 x 10^23)/((9.29 x 107)(2)) =
2.493 x 10^11 times

Answer 2

I can't help you. Maybe if you told me the molarity of aluminum (if your cans are indeed made of it) and the distance to the sun.