Chapter%201%20Examples

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Chapter 1 Examples

• Matter and Measurement

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- To those whom much is given, much is expected.

• John F. Kennedy

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Chemistry Help Center

• M-Th 730-930 Keyes 104

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• Calculate the mass of 10.0 mL of CCl4 (l).
• Given d 1.595 g cm-3

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• Calculate the mass of 10.0 mL of CH4 (l).
• Given d 1.595 g cm-3
• w 1.595 g/mL 10.0 mL 15.595 g
• w d V

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1. Always check units helps to correct mistakes
2. always give units
3. ratios are always unitless mass (15 g/100
   g) 100 15

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Find 12.56 11.2

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Find 12.56 11.2

• Align the decimal points 12.56 2 SFPDP
• 11.2 1 SFPDP
• 1.36
• Final answer 1.4 1 SFPDP

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