Use the prefix multipliers to express each measurement withoutexponents.a. 1.2 x 10-9 mb. 22 x 10-1 sc. 1.5 x 10°gd. 3.5 x 10°L

Certain prefix multipliers are used while denoting the quantities which indicate that the power of…

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General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter2: Measurements In Chemistry

Section: Chapter Questions

Problem 2.23EP: Consider the following rulers as instruments for the measurement of length. What would the...

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For the pin shown in Fig. 2.5, why is the third figure determined for the length of the pin uncertain? Considering that the third figure is uncertain, explain why the length of the pin is indicated as 2.85 cm rather than, for example, 2.83 or 2.87 cm.
A measurements true value is 17.3 g. For each set of measurements, characterize the set as accurate, precise, both, or neither. (a) 17.2, 17.2, 17.3, 17.3 g (b) 16.9, 17.3, 17.5, 17.9 g (c) 16.9, 17.2, 17.9, 18.8 g (d) 17.8, 17.8, 17.9, 18.0 g
a 21.7 m to cm, b 517 m to km, c 0.666 km to cm
a 494 cm3 to mL, b 1.91 L to mL, c 874 cm3 to L
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Two students were assigned to determine the mass of a sample of an unknown liquid. Student A used an ordinary laboratory balance that could determine mass to ±0.01 g. Student B used an analytical balance that could measure mass to ±0.1 mg. Each made four measurements, giving the following results: Student A: 8.19 g, 8.22 g, 8.21 g, 8.25 g Student B: 8.2210 g, 8.2210 g, 8.2209 g, 8.2210 g 2. Which student is more precise? A B
A student checked the accuracy of two standard top-loading balances by testing them with a standard 5.000-g mass. The results were as follows: Balance 1: 4.99 g, 5.04 g, 5.03 g, 5.01 g Balance 2: 4.97 g, 4.99 g, 4.95 g, 4.96 g Calculate the average values for balances 1 and 2 and calculate the percent error for each. Which balance is more accurate?
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A children's pain relief elixir contains 80. mg acetaminophen per 0.50 teaspoon. The dosage recommended for a child who weighs between 24 and 35 lb is 1.5 teaspoons. What is the range of acetaminophen dosages, expressed in mg acetaminophen/kg body weight, for children who weigh between 24 and 35 lb?
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Indicate to what decimal position readings should be estimated and recorded nearest 0.1,0.01,etc. for measurements made with the following devices: a. A ruler with a smallest scale marking of 0.1cm b. A measuring telescope with a smallest scale marking of 0.1mm c. A protractor with a smallest scale marking of 1 d. A tire pressure gauge with a smallest scale marking of 1lb/in2.

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Use the prefix multipliers to express each measurement without exponents. a. 1.2 x 10-9 m b. 22 x 10-1 s c. 1.5 x 10°g d. 3.5 x 10°L