EXAM 5 Flashcards
(32 cards)
COEFFICIENTS ARE THE NUMBER OF _____ OF EACH COMPOUND
MOLES
LIMITING REACTANT IS WHEN YOU RUN OUT OF AN _____
INGREDIENT(REACTANT)
WITH LIMITING REACTANT PROBLEMS HOW DO YOU DO THEM?
EX: 3NH2 + N2 ——-> 2 NH3
15.7g N2 reacts with 7.81g H2. How much NH3 is made?
DO IT ONCE WITH THE N2 AND ONCE WITH THE H2
WHICHEVER ONE IS LESS THAT IS THE LIMITING REACTANT
WHAT IS THE PERCENT YIELD EQUATION?
% YIELD = ACTUALLY GOT (g) / THEORETICAL AMOUNT (g) x 100
% yield is ______ vs. _________
HOW MUCH YOU GET, HOW MUCH YOU WERE SUPPOSE TO GET
WHAT IS PERCENT YIELD?
WHEN YOU DON’T MAKE AS MUCH PRODUCT AS YOU THOUGHT
WHAT IS A SOLUTION?
A HOMOGENOUS MIXTURE OF A SOLUTE AND A SOLVENT
WHAT IS A SOLUTE?
WHAT IS BEING DISSOLVED
WHICH IS ALWAYS THE LESSER AMOUNT, THE SOLUTE OR THE SOLVENT?
SOLUTE
WHAT IS A SOLVENT?
WHAT IS DOING THE DISSOLVING
WHAT ARE THE DIFFERENT CATEGORIES OF SOLUTIONS?
GAS DISSOLVED IN A GAS, LIQUID DISSOLVED IN A GAS, GAS DISSOLVED IN A LIQUID, LIQUID DISSOLVED IN A LIQUID, SOLID DISSOLVED IN A LIQUID, LIQUID DISSOLVED IN A SOLID, SOLID DISSOLVED IN A SOLID
EXAMPLE OF GAS DISSOLVED IN GAS
AIR, 02 IN N2
LIQUID DISSOLVED IN A GAS EXAMPLE
FOG (H2O DROPLETS IN AIR)
GAS DISSOLVED IN A LIQUID EXAMPLE:
SODA (CO2 IN H2O)
LIQUID DISSOLVED IN A LIQUID EXAMPLE
VODKA, ALCOHOL IN WATER, MILK IN COFFEE
SOLID DISSOLVED IN A LIQUID EXAMPLE:
SUGAR IN COFFEE
SALT IN WATER
LIQUID DISSOLVED IN A SOLID EXAMPLE:
AMALGUM FILLINGS (Hg in Ag) , SILVER FILLINGS
SOLID DISSOLVED IN A SOLID EXAMPLE:
ALLOYS
FACTORS THAT AFFECT SOLUBILITY
TEMPERATURE
PRESSURE
AS TEMP _____ SOLUBILITY _____
INCREASES, DECREASES
AS PRESSURE ____ SOLUBILITY _____
INCREASES, INCREASES
_____ DISSOLVES ______
LIKE, LIKE
POLAR LIKES ______
POLAR
WILL WATER AND VINEGAR MIX?
YES
