Le Chatelier’s Principle, pH, & Ocean Acidification
What is pH a measure of?
What is a Acid (BLA)?
Reactant that loses a hydrogen ion
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Recipe: 2 marshmallows, 4 Graham crackers, 8 chocolate
What is the Limiting reactant (LR)?
Marshmallows
Balance Na + H20 -> NaOH + H2
2Na + 2H20 -> 2NaOH + H2
Write the Revised Chemical Formula for Silver (II) Bicarbonate
Ag(HCO3)2
What has occurred in the past 200 years?
pH of the ocean has dropped
How do you determine which substances are the Conjugate Acid (CA)?
Product paired up with a BLB that gains hydrogen ion
Calculate the #mol NH3 produced if 4.935 mol N2 react
9.87 mol NH3
CR where one Reactant breaks down to form 2+ products?
Decomposition Reaction (DR)
Write the Revised Chemical Formula for Copper (IV) Iodite
Cu(IO2)4
When temperature increases in a system what way does it shift?
Away from Energy
H20(l)+HPO4-2(aq)+ -><- OH-1(aq)+H2PO4^-1(aq)
What reactants are BLA, BLB, CD,CA
Which pair is BCAP and ACBP?
H20=BLB
HPO4-2=BLB
OH-1=CD
H2PO4^-1=CA
H2PO4^-1+H20= BCAP
HPO4-2+OH-1= ACBP
8H2(g) + S8(g) -> 8H2S(g)
We have 98.6g H2s. How many moles of S8 are needed?
0.361 mol S8
CR where two elements are exchanged with each other
Double Displacement Reaction (DDR)
Write the Revised name for Ge(Cr2O7)4
Germanium (II) chromate
When the Pressure increases, what would happen to the concentration of N2?
Go down
Calculate the [H+1] in a aq solution at 25 degrees with 1.0 x 10^-7 M OH-1
Determine the Solution Type
1.0 x 10^-7 M
Basic
Calculate the Molarity of solution prepared by dissolving 79.368g InPo4 in enough water to make 40.85L of solution
9.261 M
Calculate molar mass of Cu(CO3)2
MM= 183.57 g/mol
Why are LDS temporary?
Electrons are in constant motion and so quickly move to other locations
N2 (g) + #h2(g) -><-2NH3(g) H=-92kJ
When the Temperature decreases, what happens to the Keq?
Go up
In a Chemical Equilibrium, state where FR is occurring at the same rate as RR?
FR and RR continue to occur, but NO noticeable change in concentration
C3H8(g) + 502(g) -> 3CO2(g) + 4H20(g)
Calculate the #g O2 needed if 8.35x10^26 molecules (molc) CO2 form.
7.40x10^4g02
Zn(s) + AgNO3(aq) -> ?
Predict the products for this reaction
Zn (NO3)2 (aq) + 2Ag(s)
How is a Hydrogen bond usually represented?
Dotted line that connects the hydro-bonded hdro to the partial negative charge on another molecule