Practice: How many sig figs does each number contain?

a) 100. min

b) 17.3 x 10^{3} mL

c) 10 apples

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Classification of Matter | 18 mins | 0 completed | Learn Summary |

Physical & Chemical Changes | 19 mins | 0 completed | Learn Summary |

Chemical Properties | 9 mins | 0 completed | Learn Summary |

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Intensive vs. Extensive Properties | 14 mins | 0 completed | Learn |

Temperature | 12 mins | 0 completed | Learn Summary |

Scientific Notation | 14 mins | 0 completed | Learn |

SI Units | 8 mins | 0 completed | Learn |

Metric Prefixes | 24 mins | 0 completed | Learn Summary |

Significant Figures | 10 mins | 0 completed | Learn Summary |

Significant Figures: Precision in Measurements | 8 mins | 0 completed | Learn |

Significant Figures: In Calculations | 20 mins | 0 completed | Learn |

Conversion Factors | 16 mins | 0 completed | Learn |

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Additional Practice |
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The Scientific Method |

Filtration |

Standard Deviation, Mean, Median & Mode |

Accuracy & Precision |

**Significant Figures** are used to determine some level of accuracy within our recorded measurements.

Example #1: Determine the number of significant figures in the following value: 0.003840

Practice: How many sig figs does each number contain?

a) 100. min

b) 17.3 x 10^{3} mL

c) 10 apples

Practice: Indicate the number of significant figures in the following:

A liter is equivalent to 1.059 qt.

Practice: How many significant figures are contained in the following measurement?

3,482,005 mg

0 of 5 completed

Which of the following numbers has the greatest number of significant figures?
A. 1.500 B. 2.4 x 10 4 C. 0.00085 D. 752,000

How many significant figures are in 1009.630 mL?
A) 3
B) 4
C) 5
D) 6
E) 7

How many significant figures are in the measurement, 20.300 m?
A) 3
B) 4
C) 5
D) 1
E) 2

There are 6 significant figures in the number 0.003720.
A. True
B. False

Based on our introductory discussions of matter and measurement, which of the following matching statements is INCORRECT?a) A state of matter that is significantly compressible: gasb) Anything that has mass and takes up space: matterc) Gas to solid conversion: sublimationd) Matter of variable composition: mixturese) The number of significant figures in the measurement 0.00230 m: 3

How many significant figures are in the following?6.022 x 1023 =340384 =10.00 =8.1000 =0.00000000003 =

For each number, underline the zeroes that are significant and draw an x through the zeroes that are not:a. 1,050,501 km b. 0.0020 mc. 0.000000000000002 s d. 0.001090 cm

How many significant figures are in each number?a. 0.000312 mb. 312,000 sc. 3.12 X 105 kmd. 13,127 se. 2000

Round each number to four significant figures.a. 156.852b. 156.842c. 156.849d. 156.899

Round each number to three significant figures.a. 79,845.82b. 1.548937 X 107c. 2.3499999995 d. 0.000045389

The diameter of Earth at the equator is 7926.381 mi. Round this number to three significant figures, and express it in standard exponential notation.

Indicate which of the following are exact numbers:(a) the mass of a paper clip(b) the surface area of a dime(c) the number of inches in a mile(d) the number of ounces in a pound (e) the number of microseconds in a week (f) the number of pages in this book

Indicate which of the following are exact numbers:(a) the mass of a 32-oz can of coffee(b) the number of students in your chemistry class(c) the temperature of the surface of the sun(d) the mass of a postage stamp(e) the number of milliliters in a cubic meter of water(f) the average height of students in your school

What is the number of significant figures in each of the following measured quantities?(a) 358 kg

What is the number of significant figures in each of the following measured quantities?(b) 0.054 s

What is the number of significant figures in each of the following measured quantities?(c) 6.3050 cm

What is the number of significant figures in each of the following measured quantities?(d) 0.0105 L

What is the number of significant figures in each of the following measured quantities?(e) 7.0500 x 10–3 m3

Indicate the number of significant figures in each of the following measured quantities:(a) 3.774 km

Indicate the number of significant figures in each of the following measured quantities: (b) 205 m2

Indicate the number of significant figures in each of the following measured quantities: (c) 1.700 cm

Indicate the number of significant figures in each of the following measured quantities: (e) 307.080 g

Indicate the number of significant figures in each of the following measured quantities: (d) 350.00 K

You weigh an object on a balance and read the mass in grams according to the picture. How many significant figures are in this measurement?

How many significant figures are in each of the following?a. 100

How many significant figures are in each of the following?b. 1.0 x 10 2

How many significant figures are in each of the following?c. 1.00 x 10 3

How many significant figures are in each of the following?d. 100.

How many significant figures are in each of the following?e. 0.0048

How many significant figures are in each of the following?f. 0.00480

How many significant figures are in each of the following?g. 4.80 x 10–3

How many significant figures are in each of the following?g. 4.800 x 10–3

Which of the following is NOT an exact number?A) Your weight in pounds.B) The amount of pennies per dollar.C) The number of milligrams in a kilogram.D) The number students in this classroom.

All 50 students agree that in the classroom there are 100 chairs. This number has:
a. 1 significant figure
b. 2 significant figures
c. 3 significant figures
d. Infinite number of significant figures
e. We cannot know with the available information

The number of significant figures in 0.066900 x 10 -4 isa. 5b. 6c. 7d. 3e. 4

Express 96,342 m using 2 significant figures. 1) 9.60 x 104 m 2) 9.6 x 10-4 m 3) 9.6 x 104 m 4) 96,000. m 5) 9.60 x 10-4 m

Translate the following numbers into standard notation, maintaining the same number of significant figures. a. 4.52 x 103 b. 8.11 x 10-2

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