Introduction to Dimensional Analysis

​Dimensional Analysis and Conversion Factors - Review

This is a review of Chapter 2.2 ​

​SI Units

​In this class you are to remember each SI Units Quantity, Symbol, Unit, and Abbreviation.

Multiple Choice

The abbreviation for mass if

• g

• kg

• m

• mol

Multiple Choice

the amount of substance = _

• mole

• length

• luminous intensity

• thermodynamic temperature

1. Length = meters (m)

2. mass = grams (g)

3. time = seconds (s)

4. ​Volume = Liter (L)

5. amount of substance = mole (mol)​

​Base Units used in chemistry

​

• ​Conversion factors are used to convert from one unit to another.

• ​A unit prefix is placed in front of a base unit to indicate a multiple of any measurement.

​Prefixes & Conversion Factors

​Common Conversion Factors

Multiple Choice

What is the symbol for kilo?

• c

• m

• K

• $$\mu$$  

Draw

Write your answer in the space provided: 1 ) If you're converting from g to Kg, are you getting bigger or smaller? 2) Do you multiple or divide based on your answer to #1? 3) How much do you multiple or divide by (look at unit prefix)?

Draw

Write your answer in the space provided: 1 ) If you're converting from m to mm, are you getting bigger or smaller? 2) Do you multiple or divide based on your answer to #1? 3) How much do you multiple or divide by (look at unit prefix)?

Multiple Choice

What is the symbol for micro?

• c

• m

• K

• $$\mu$$  

Draw

Write your answer in the space provided: 1 ) If you're converting from s to $$\mu s$$  , are you getting bigger or smaller? 2) Do you multiple or divide based on your answer to #1? 3) How much do you multiple or divide by (look at unit prefix)?

Draw

Write your answer in the space provided: 1 ) If you're converting from mol to cmol, are you getting bigger or smaller? 2) Do you multiple or divide based on your answer to #1? 3) How much do you multiple or divide by (look at unit prefix)?

Multiple Choice

to convert 0.5674 m to km, which conversion factor should we use?

• $$\div1000,\ answer\ in\ m$$  

• $$\times1000,\ answer\ in\ Km$$  

• $$\times1000,\ answer\ in\ m$$  

• $$\div1000,\ answer\ in\ Km$$   

Draw

Set up an equation that converts 9000 m to km.

Multiple Choice

Convert 9000 m to km.

• 9 000 000

• 9

• 9 000 000 km

• 9 km

Multiple Choice

to convert 0.005 cm to m, which conversion factor should we use?

• $$\times100,\ answer\ in\ cm$$   

• $$\div100,\ answer\ in\ m$$    

• $$\times100,\ answer\ in\ m$$  

• $$\div100,\ answer\ in\ cm$$  

Multiple Choice

to convert 1 L to mL, which conversion factor should we use?

• $$\times1000,\ answer\ in\ L$$  

• $$\div1000,\ answer\ in\ mL$$  

• $$\times1000,\ answer\ in\ mL$$  

• $$\div1000,\ answer\ in\ L$$  

Draw

Set up an equation that converts 38 m to cm.

Multiple Choice

Convert 38 m to cm.

• 0.038 cm

• 3800 cm

• 38 000 cm

• 0.38 cm

Multiple Choice

to convert 36.52 mol to $$\mu mol$$ , which conversion factor should we use?

•   $$\times1\ 000\ 000,\ answer\ in\ \mu mol$$  

•   $$\div1\ 000\ 000,\ answer\ in\ \mu mol$$  

•   $$\times1\ 000\ 000,\ answer\ in\ mol$$  

•   $$\div1\ 000\ 000,\ answer\ in\ mol$$  

Draw

Set up an equation that converts 936.52 $$\mu mol$$   to mol.

Multiple Choice

Convert 36.52 mol to $$\mu mol$$ .

• 36 520 mol

• 36 520 000 mol

• 0.00003652 mol

• 0.03652 mol