Lab Week 1 Flashcards
What are the basic units of the metric system?
Meter (m)
Liter (l) or (L)
Gram (g)
What is meters used for?
Units of length
What is liter used for?
Units of volume
What is grams used for?
Unit of weight (mass)
What is the order of the metric units?
Kilo (k) Hecto (h) Deca (da) Basic units (grams, liters, meter) Deci (d) Centi (c) Milli (m) Micro (script m)
What is deci?
d
1/10 or 0.1
What is centi?
c
1/100 or 0.01
What is milli?
m
1/1000 or 0.001
What is micro?
Script m
1/1,000,000 or 0.000001
Is micron and micrometer the same?
Yes
1,000 of a millimeter
When converting upwards on the list where does the decimal point go?
To the left
Larger decimals go to the left
When converting downwards on the list where does the decimal point go?
To the right
Smaller decimals goes to the right
What are the measurements for length?
Metric stick and metric rulers
Goes up by units of 10
What are the instruments for volume?
Graduated cylinder and pipette
What is a meniscus?
Curvature is the graduated cylinder
What is the instrument used for weight?
Triple beam balance
What are solutions?
Transparent
Created by dissolving one thing in another
Breaking it down by individual atoms and molecules
What is a solvent?
The thing that does the dissolving
What is a solute?
Thing you are dissolving
What is an aqueous solution?
Water is the solvent (thing that is doing the dissolving)
What is a salt solution?
Where the solute (thing that dissolves) is salt
What is a suspension?
It is not transparent and particles end up settling to the bottom
It is cloudy
Not broken to individual atoms/ molecules
What is a colloidal suspension or colloids?
Special kinds of suspensions that the particles do not settle to the bottom
Ex: milk
What is a pH scale used to measure?
Acidity and bases
