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Identify the number of significant figures in each measurement:

- 2.20 lb
- 95 g Silver
- 28 miles

Choose from the following options for each measurement:

- One significant figure
- Two significant figures
- Three significant figures
- Four significant figures

A. Convert [tex]5.91 \times 10^{-5}[/tex] L to picoliters.
Express your answer with the appropriate units using metric symbols.

C. Convert [tex]7 \times 10^{-4}[/tex] kg to micrograms.
Express your answer with the appropriate units using metric symbols.

D. Convert [tex]7.8 \times 10^{10}[/tex] picoseconds to seconds.
Express your answer with the appropriate units using metric symbols.

Answer :

Final answer:

The units 2.20LB, 95g Sliver, and 28 miles have three, two, and two significant figures respectively. Also, 5.91×10−5 L is 5.91×10^7 pL, 7×10−4 kg is 7×10^8 μg, and 7.8×10^10 ps is 78 seconds.

Explanation:

The number of significant figures in the given measurements can be figured out as follows:

  • 2.20LB has three significant figures as zeroes appearing between other digits are significant.
  • 95g Sliver has two significant figures.
  • 28 miles has two significant figures.

For the conversions:

  • A: 5.91×10−5 L equals 5.91×107 picoliters (pL). The prefix 'pico' means 10^-12.
  • C: 7×10−4 kg equals 7×108 micrograms (μg). The prefix 'micro' indicates 10^-6.
  • D: 7.8×1010 picoseconds (ps) equals 78 seconds. The prefix 'pico' stands for 10^-12, so when converting it to seconds, the exponent of 10 will decrease by 12.

Learn more about Significant Figures and Unit Conversions here:

https://brainly.com/question/29282719

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