University:
Georgia Southern University
Course:
CHEM 1310 | Comprehensive General Chemistry
Academic year:

2024
Views:

49

Pages:

1
Author:

Jalen W.

Significant Figures & Scientific Notation Practice Problems 1. How many significant figures are present in each of the following? a. 450 Answer: 2 b. 12.01 Answer: 4 c. 0.02 Answer: 1 d. 1.50 Answer: 3 e. 0.00400 Answer: 3 2. Express the following numbers in standard scientific significant figures: a. 70050 7.005 x 104 b. 287.00 2.8700 x 102 c. 0.0350 3.50 x 10-2 d. 0.89040 8.9040 x 10-1 e. 0.0001010 1.010 x 10-4 notation & determine the number of Answer: Answer: Answer: Answer: Answer: 3. Write out in full notation the following numbers: Answer: 60,200 a. 6.02 x 104 b. 9.14 x 10- 2 c. 3.4 x 100 d. 8.015 x 102 Answer: 0.0914 Answer: 3.4 Answer: 801.5 4. Write the fraction 3/8 in scientific notation. Answer: 3.75 x 10-1 5. Write the following numbers in scientific notation: a. 8000.1 Answer: 8.0001 x 103 b. 0.250 Answer: 2.50 x 10-1 c. 0.001001 Answer: 1.001 x 10-3 d. 202.67 Answer: 2.0267 x 102 e. 9.3 Answer: 9.3 x 100 f. 86.96 Answer: 8.696 x 101 6. Write out the following numbers: Answer: 0.00245 a. 2.45 x 10-3 b. 9.2 x 102 c. 4.5 x 10 d. 1.376 x 10 e. 0.1 x 10 Answer: 920 3 Answer: 4500 -1 Answer: 0.1376 0 f. 2.34589 x 10 Answer: 0.1 4 Answer: 23,458.9 4 5 3 5 4