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2 years ago

Practice

Chemistry

1 answer:

krek1111 [17]2 years ago

4 0

The number of significant figures in each of the following numbers are as follows:

640 cm³ - number of significant figures: 2
200.0 mL - number of significant figures: 4
0.5200 g - number of significant figures: 4
1.005 kg - number of significant Figures: 4
10,000 L - number of significant figures: 1
20.900 cm - number of significant figures: 5

<h3>What is significant figures?</h3>

Significant figures are those figures that are meaningful with respect to the precision of a measurement.

In other words, a digit that is nonzero, followed by a nonzero digit,or (for trailing zeroes) justified by the precision of the derivation or measurement is a significant figure.

Based on the question, the number of significant figures in each of the following numbers are as follows:

640 cm³ - number of significant figures: 2
200.0 mL - number of significant figures: 4
0.5200 g - number of significant figures: 4
1.005 kg - number of significant figures: 4
10,000 L - number of significant figures: 1
20.900 cm - number of significant figures: 5

Learn more about significant figures at: brainly.com/question/14359464

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General Formulas and Concepts:

Atomic Structure

Reading a Periodic Table
Moles
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Aqueous Solutions

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Stoichiometry

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Explanation:

Step 1: Define

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[Solve] L Ar

Step 2: Identify Conversions

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Step 3: Convert

[DA] Set up: $\displaystyle 40.0 \ g \ Ar(\frac{1 \ mol \ Ar}{39.95 \ g \ Ar})(\frac{22.4 \ L \ Ar}{1 \ mol \ Ar})$
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Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

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