Chem Conversion Chart Flashcards
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Questions and Answers

What does Terra (T)-unit represent?

10^12 unit

What does Giga (G)-unit represent?

10^9 unit

What does Mega (m)-unit represent?

10^6 unit

What does Kilo (k)-unit represent?

<p>10^3 unit</p> Signup and view all the answers

What does Hecto (h)-unit represent?

<p>10^2 unit</p> Signup and view all the answers

What does Deca (da)-unit represent?

<p>10^1 unit</p> Signup and view all the answers

What does UNIT represent?

<p>10^0 unit</p> Signup and view all the answers

What does Deci (d)-unit represent?

<p>10^-1 unit</p> Signup and view all the answers

What does Centi (c)-unit represent?

<p>10^-2 unit</p> Signup and view all the answers

What does Milli (m)-unit represent?

<p>10^-3 unit</p> Signup and view all the answers

What does Micro (µ)-unit represent?

<p>10^-6 unit</p> Signup and view all the answers

What does Nano (n)-unit represent?

<p>10^-9 unit</p> Signup and view all the answers

What does Pico (p)-unit represent?

<p>10^-12 unit</p> Signup and view all the answers

Is an estimate digit a significant figure?

<p>True</p> Signup and view all the answers

Where is the estimated digit found?

<p>It is the last significant figure.</p> Signup and view all the answers

Is a counting value such as people at a party a significant figure situation?

<p>False</p> Signup and view all the answers

Are constant conversion factors significant figures?

<p>False</p> Signup and view all the answers

Are all non-zero numbers significant?

<p>True</p> Signup and view all the answers

How many significant figures are in 305?

<p>3</p> Signup and view all the answers

How many significant figures are in 3555.00?

<p>6</p> Signup and view all the answers

How many significant figures are in 0.0355?

<p>3</p> Signup and view all the answers

How many significant figures are in 0.0200?

<p>3</p> Signup and view all the answers

How many digits are in 3500?

<p>2</p> Signup and view all the answers

How many significant figures are in 3.500 x 10^3?

<p>4</p> Signup and view all the answers

What determines the correct number of significant figures when adding or subtracting?

<p>The number with the fewest decimal places.</p> Signup and view all the answers

What determines the correct number of significant figures when multiplying or dividing?

<p>The newest total number of significant figures.</p> Signup and view all the answers

With conversions, the correct number of significant figures comes from?

<p>The same start value.</p> Signup and view all the answers

Write 560,000 in scientific notation.

<p>5.6 x 10^5</p> Signup and view all the answers

Rewrite 8.34 x 10^-2.

<p>0.0834</p> Signup and view all the answers

What does accuracy measure?

<p>How close one measurement value is to the actual 'true value'.</p> Signup and view all the answers

What does precision measure?

<p>How close many measurements are to each other.</p> Signup and view all the answers

What is the formula for density?

<p>m/v</p> Signup and view all the answers

What is the density of water?

<p>1 g/mL</p> Signup and view all the answers

Study Notes

Metric Prefixes

  • Terra (T) represents 10^12 units.
  • Giga (G) represents 10^9 units.
  • Mega (M) represents 10^6 units.
  • Kilo (k) represents 10^3 units.
  • Hecto (h) represents 10^2 units.
  • Deca (da) represents 10^1 unit.
  • UNIT represents 10^0 unit.
  • Deci (d) represents 10^-1 unit.
  • Centi (c) represents 10^-2 unit.
  • Milli (m) represents 10^-3 unit.
  • Micro (µ) represents 10^-6 unit.
  • Nano (n) represents 10^-9 unit.
  • Pico (p) represents 10^-12 unit.

Significant Figures (Sig-Figs)

  • An estimated digit is considered a significant figure.
  • The estimated digit can be found as the last significant figure.
  • Counting values, like the number of people, are not treated as significant figures.
  • Constant conversion factors do not count as significant figures.
  • All non-zero numbers are significant figures.
  • Examples of significant figures:
    • The number 305 has 3 significant figures.
    • The number 3555.00 has 6 significant figures.
    • The number 0.0355 contains 3 significant figures.
    • The number 0.0200 possesses 3 significant figures.
    • The number 3500 has 2 significant figures.
    • The scientific notation 3.500 x 10^3 has 4 significant figures.

Mathematical Operations and Significant Figures

  • In addition or subtraction, the correct number of significant figures comes from the number with the fewest decimal places.
  • In multiplication or division, the total significant figures are determined by the number with the fewest significant figures.
  • For conversions, the correct number of significant figures derives from the initial value.

Scientific Notation

  • 560,000 in scientific notation is written as 5.6 x 10^5.
  • 8.34 x 10^-2 can be rewritten as 0.0834.

Measurement Concepts

  • Accuracy refers to how close a measurement is to the actual true value.
  • Precision measures how closely grouped multiple measurements are to each other.

Density

  • Density is defined as mass divided by volume (m/v).
  • The density of water is established at 1 g/mL.

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Description

Test your knowledge of metric prefixes with these flashcards covering various units of measurement. Each card provides a prefix and its corresponding numerical value based on powers of ten. Perfect for students studying chemistry or any science involving measurements!

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