sparknotes
Units, Scientific Notation, and Significant Figures
Problems
Problem : Silver has a density of 10.5 g/mL at 25 C. What is the mass of 16 mL of silver?
Problem :
How many significant figures are there in the following
numbers:
a. 209.4
b.
1.74x10-23
c. 0.00220
d. 0.087686
Problem :
Please perform the necessary math and give the number with the correct
number of significant figures. Use scientific notation where
appropriate.
A. 4.632 x 2.5
B. 12.443 +1.94672
C. 0.0000042 x 24365
D. 5.4 x 104 x 2.3 x 102
E. (41 x 3890)/36
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