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Mixtures | 12 mins | 0 completed | Learn Summary |

Scientific Notation | 6 mins | 0 completed | Learn |

Accuracy & Precision | 5 mins | 0 completed | Learn |

Standard Deviation, Mean, Median & Mode | 7 mins | 0 completed | Learn |

Metric Prefixes | 17 mins | 0 completed | Learn Summary |

Significant Figures | 18 mins | 0 completed | Learn Summary |

Energy, Heat and Temperature | 7 mins | 0 completed | Learn Summary |

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Scientific notation is used to turn small or large inconvenient numbers into manageable ones.

Concept #1: Understanding Scientific Notation

**Transcript**

Now, majority of you may remember scientific notation in algebra or from of course you recently take it. Now, scientific notation is a way of changing very large or very small numbers into more manageable ones, scientific notation is really a simple type of idea, but it's going to form the basis of all our chemical calculations from this point on. Now, in order to understand scientific notation you just have to remember the three components that make it up. So, let's take a look at this number, we have 6.88 times 10 to the negative 12, we're going to say the first number 6.88 is called the coefficient and the thing about the coefficient is, the coefficient must be greater than or equal to 1 but less than 10. So, that's the range that we're dealing with, we're going to say that the second number, which is the 10, is known as the base and when it comes to scientific notation the base is always 10, that's not ever going to change, finally we're going to say in 6.88 times 10 to the negative 12, the negative 12 number is known as our exponent. So, those are the three portions that make up any scientific notation number that you're given. So, just remember the guidelines for some of them and you'll be fine.

A scientific notation value is comprised of 3 parts: the **coefficient**, **base** and **exponent**.

Example #1: Convert the following numbers into scientific notation.

0 of 2 completed

Concept #1: Scientific Notation

Example #1: Convert the following numbers into scientific no...

Write the following number in scientific notation and round off to five significant figures: 0.00392708 x 10 81 .
a) 3.9271 x 10 84
b) 3.9270 x 10 78
c) 0.39271 x 10 78
d) 3.9270 x 10 80
e) 3.9271 x 10 78

Use scientific notation to express each quantity with only the base units (no prefix multipliers).
b. 18 fs

Use scientific notation to express each quantity with only the base units (no prefix multipliers).
c. 128 pm

Use scientific notation to express each quantity with only the base units (no prefix multipliers).
d. 35 µm

The circumference of Earth through the poles is 40,008 km. Round this number to four significant figures, and express it in standard exponential notation.

Use scientific notation to express each quantity with only the base units (no prefix multipliers). a. 4.5 ns

Convert the following measurements from scientific notation to standard notation: 6.4100 x 102 km

Convert the following into correct scientific notation: 851 x 10 −2

Express each of the following numbers in exponential notation with correct significant figures:(b) 0.03344

4.3×10-6 is between which two numbers?a) 1×10-7 and 1×10-8b) 1×10-6 and 1×10-7c) 1×10-5 and 1×10-6d) 1×10-4 and 1×10-5

Express the following number in scientific notation 0.000275 _____________________How many significant figures in your answer _______________

How do you write 0.005 in scientific notation?

Write the following number in scientific notation and round off to three significant figures: 31152 x 10-15 .

Express the circumference of the Earth at the Equator, 40,075,017 m, in scientific notation.

What is the following number to four significant figures in standard exponential notation: 656,980

Express the following quantities in scientific notation using fundamental SI units of mass and length given in the table below.The Seven Fundamental SI Units of MeasurePhysical QuantityName of UnitAbbreviationMasskilogramkgLengthmetermTemperaturekelvinKAmount of substancemolemolTimesecondsElectric currentampereALuminous intensitycandelacdThe mass of carbon dioxide emitted from a large power plant each year, 20
Tg.

4.3×10-6 is between which two numbers?a) 1×10-7 and 1×10-8b) 1×10-6 and 1×10-7c) 1×10-5 and 1×10-6d) 1×10-4 and 1×10-5

Express each of the following numbers in scientific notation with correct significant figures:(a) 711.0

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