Guided Notes Chemistry



Guided Notes Chemistry Name: _________________________

Measurement Hour: _______

Units Of Measurement

Measurement:

Quantitative data (represents _______________)

Quantity: something that has ___________, size or _____________

Example:

SI Measurement:

International Standards of ____________________

There are ________SI Base Units

SI Base Units:

REMEMBER

Meters =

Liters =

Grams =

Seconds =

SI Base Units (Common):

Mass: the quantity that measures ____________________

Ex:

Weight: A measure of _____________________ pull on matter

Length: the quantity that measures ________________________

Ex:

SI Prefixes:

Each Base Unit can carry with it a number of ___________________

Each prefix represents a quantity ______________ or ________________ than the Base Unit

There are _______________ prefixes you need to learn

You will be asked to convert from one unit to another.

The larger numbers are at the _____________ of the chart (tera), the smaller

numbers are at the _________________ of the chart (pico)

When you move _______________ the chart from a smaller number to a larger number MOVE

THE DECIMAL TO THE left

When you are moving ________________________ the chart from a large number to a smaller number

MOVE THE DECIMAL TO THE _____________________

Lets try Some !!!:

2300 kilometers > decameter

1. Decide which way to move your decimal:

2. Next count how many unit difference it is from kilo to deka:

2300 kilometers = __________________ dekameters

Practice these next few conversions!

3.25 micrograms to dekagrams

.00562 kiloliters to gigaliters

33.25 centimeters to hectometers

650 meters to millimeters

Volume

Volume is a derived unit:

Volume =

Units: (m) x (m) x (m) = (m3) cubic meter

Density

Density is a derived unit:

Density =

Units for density could be g/L, kg/m3 or g/cm3

Be sure you know what units you are using in your equation and be consistent in your answer

Density Wheel

The wheel is a quick way to determine what you are solving for.

1. Cover the variable that you are solving

2. Multiply _______________ in the wheel, ________________ up and down in the wheel

3. Always identify your _____________________ when completing a problem and SHOW ALL OF YOUR WORK!!!

WHEEL:

Common Conversion Factors

Used to convert between ______________________ measurements

Some are common to you, some are new or often forgotten

These conversions will be used in _________________ analysis to convert between units

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