Chemistry Homework Solutions
Problem
#2479

One significant figure and one conversion problem

1)  How many significant figures are there in the
    answer to the following problem?
    (8.881*.02100) + .590?

2)  A parsec is 206,265 times the distance from earth
    to the sun.  If the distance is 8.000 million
    miles, express the distance of a parsec in miles
    in scientific notation.

Solution
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