Just want to say thank you. Rules for rounding to proper significant figuresAddition and Subtraction1. Add and or subtract numbers as usual.2. Round the answer to the least number of decimalplaces in the numbers in the problem.Multiplication and Division1. Multiply or divide numbers as usual.2. Round the answer to the least number of significantfigures in the numbers in the problem.I) Adding and subtracting: evaluate the following problems and use the rliles to round your answer:3)658.0246.24238.2781)32.5672)135.0023.54781.456798.31325.29169.01II) Multiplying and dividing: evaluate the following problems and use the rules to round your answer:1) 23.7 x 3.8 = 90.063) 81.04 + 0.010 =2) 25.76 x 0.25 =III) Complete the the following problems and round your answer to the proper significant figures:1) 6.201 cm + 7.4 cm + 0.68 cm =6) 1.31 cm x 2.3 cm =7) 5.7621 m x 6.201 m =2) 1.6 km + 1.62 km + 2.3 km =8) 20.3 cm + 7.41 cm =3) 8.264 g - 7.8 g =9) 40.002 g + 13.0005 g =4) 10.4168 m - 6.0 m =10) 150,000.0 m ÷ 5000.01 m =5) 12.00 kg + 15.001 kg =IV) Complete the following problems: (Hint: density = mass ÷ volume)1) A student calculates the density of an unknown solid. The mass is 10.04 grams, and the volume is 8.210 cubiccentimeters. How many significant figures should appear in the final answer?2) A sodium sample has a mass of 80.01 g and a density of 0.970 g/cm³. According to the data, to what number ofsignificant figures should the calculated volume of the sodium sample be expressed?Page

I) Adding and subtracting: evaluate the following problems and use the rliles to round your answer: 658.0 23.5478 1325.29 1) 2) 3) 32.567 135.0 246.24 238.278 1.4567 98.3 169.01 II) Multiplying and dividing: evaluate the following problems and use the rules to round your answer: 1) 23.7 x 3.8 = 90.06 2) 25.76 x 0.25% = 3) 81.04 + 0.010 = III) Complete the the following problems and round your answer to the proper significant figures: 1) 6.201 cm + 7.4 cm + 0.68 cm% D 6) 1.31 cm x 2.3 cm = 2) 1.6 km + 1.62 km + 2.3 km = 7) 5.7621 m x 6.201 m = 8) 20.3 cm + 7.41 cm = 3) 8.264 g- 7.8 g = 9) 40.002 g + 13.0005 g = 4) 10.4168 m - 6.0 m = 10) 150,000.0 m 5000.01 m% D 5) 12.00 kg + 15.001 kg = IV) Complete the following problems: (Hint: density = mass + volume) 1) A student calculates the density of an unknown solid. The mass is 10.04 grams, and the volume is 8.210 cubic centimeters. How many significant figures should appear in the final answer? 2) A sodium sample has a mass of 80.01 g and a density of 0.970 g/cm. According to the data, to what number of significant figures should the calculated volume of the sodium sample be expressed? Page

I) Adding and subtracting: evaluate the following problems and use the rliles to round your answer: 658.0 23.5478 1325.29 1) 2) 3) 32.567 135.0 246.24 238.278 1.4567 98.3 169.01 II) Multiplying and dividing: evaluate the following problems and use the rules to round your answer: 1) 23.7 x 3.8 = 90.06 2) 25.76 x 0.25% = 3) 81.04 + 0.010 = III) Complete the the following problems and round your answer to the proper significant figures: 1) 6.201 cm + 7.4 cm + 0.68 cm% D 6) 1.31 cm x 2.3 cm = 2) 1.6 km + 1.62 km + 2.3 km = 7) 5.7621 m x 6.201 m = 8) 20.3 cm + 7.41 cm = 3) 8.264 g- 7.8 g = 9) 40.002 g + 13.0005 g = 4) 10.4168 m - 6.0 m = 10) 150,000.0 m 5000.01 m% D 5) 12.00 kg + 15.001 kg = IV) Complete the following problems: (Hint: density = mass + volume) 1) A student calculates the density of an unknown solid. The mass is 10.04 grams, and the volume is 8.210 cubic centimeters. How many significant figures should appear in the final answer? 2) A sodium sample has a mass of 80.01 g and a density of 0.970 g/cm. According to the data, to what number of significant figures should the calculated volume of the sodium sample be expressed? Page

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Just want to say thank you.

Rules for rounding to proper significant figures
Addition and Subtraction
1. Add and or subtract numbers as usual.
2. Round the answer to the least number of decimal
places in the numbers in the problem.
Multiplication and Division
1. Multiply or divide numbers as usual.
2. Round the answer to the least number of significant
figures in the numbers in the problem.
I) Adding and subtracting: evaluate the following problems and use the rliles to round your answer:
3)
658.0
246.24
238.278
1)
32.567
2)
135.00
23.5478
1.4567
98.3
1325.29
169.01
II) Multiplying and dividing: evaluate the following problems and use the rules to round your answer:
1) 23.7 x 3.8 = 90.06
3) 81.04 + 0.010 =
2) 25.76 x 0.25 =
III) Complete the the following problems and round your answer to the proper significant figures:
1) 6.201 cm + 7.4 cm + 0.68 cm =
6) 1.31 cm x 2.3 cm =
7) 5.7621 m x 6.201 m =
2) 1.6 km + 1.62 km + 2.3 km =
8) 20.3 cm + 7.41 cm =
3) 8.264 g - 7.8 g =
9) 40.002 g + 13.0005 g =
4) 10.4168 m - 6.0 m =
10) 150,000.0 m ÷ 5000.01 m =
5) 12.00 kg + 15.001 kg =
IV) Complete the following problems: (Hint: density = mass ÷ volume)
1) A student calculates the density of an unknown solid. The mass is 10.04 grams, and the volume is 8.210 cubic
centimeters. How many significant figures should appear in the final answer?
2) A sodium sample has a mass of 80.01 g and a density of 0.970 g/cm³. According to the data, to what number of
significant figures should the calculated volume of the sodium sample be expressed?
Page

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