Perform the following mathematical operations, and express each result to the correct number of significant figures.
(0.102 x 0.0821 x 273)/1.01





(b) 0.13 x 6.022 x 10^23


(c) 4.0 x 10^4 x 5.810 x 10^-3 x 7.34993 x 10^2


(6.00 x 10^6)/ 3.00 x 10^-7

We are not expected to do your homework here. Can't you grad a calculator and do these? Concerning the significant figures, you should know it, depending on the situation. But usually, stick to two or three sig fig.

as far as sig. figs. Are concerned, you would use three for this problem.

(0.102 x 0.0821 x 273)/1.01

since the first two zeros in the second number (0.0821) are to the left, they are not significant. Anything in the middle or to the right of the first non-zero digit, is significant.

a) 2.29
b) 7.8