Lab Math Flashcards
> a decimal system that can be used for very small quantities with accuracy
The Metric System
The Metric System
base units
1 centimeter = 10 millimeter
is a form of metric system adopted for use by the worldwide scientific community
International System of Units (SI)
is a way of writing very large or very small numbers.
Scientific Notation
A number is written in scientific notation when a number between_____ is multiplied by a power of 10
1 and 10
● homogenous mixture of
two or more substances
Solution
● the dissolved substance
Solute
● the substance doing the
dissolving
Solvent
● the capacity of two substances to be
mixed
Solubility
● the quantity of solute present in a
given quantity of solution
Concentration
● the process of decreasing the
concentration of a solute in a solution
Dilution
● change in one unit of measure to
another
● utilizes conversion factors
Conversions
= the sum of all atomic masses in a molecule
● molar mass
= mass/molar mass
● moles
● the no. of moles of solute in 1L of solution.
● molar concentration of solution
● moles of a solute per liters of solution
Molarity
= Volume of the concentrated solution
V2
- Concentration of the concentrated solutions
C2
- Volume of the stock solution
V1
- Concentration of the stock solution
C1
Dilution
● RATIO:
parts of solute : parts of SOLVENT
: reciprocal of dilution
● CAN be used to correct the value of the test result of a diluted sample
● DILUTION FACTOR
● making weaker or less concentrated solutions from stronger ones expressed as the volume of the solution
● being diluted over total final volume of the SOLUTION
Dilution
● making weaker or less concentrated solutions from stronger ones expressed as the volume of the solution
● being diluted over total final volume of the SOLUTION
Dilution
