Le Chatelier's Principle, pH, & Ocean Acidification
What did the ocean do to balance increased CO2 in the atmosphere?
- Direct dissolving
- Chemical buffering
- Carbonic Acid
HCl (aq) + NH3 (aq) <> NH4+1 (aq) + Cl-1 (aq)
Label this equation using BLB, BLA, CA, & CB
HCl = BLA
NH3 = BLB
NH4+1 = CA
Cl-1 = CB
How many Turkey sandwiches can you make based on the Limiting Reaction?
In Your Fridge: 28 Bread, 40 Turkey, 36 Cheese, 32 Tomatoes
Recipe: 2 bread, 4 Turkey, 2 cheese, 4 tomatoes
8 Turkey sandwiches
Calculate MM for Ru(MnO4)4 = Ruthenium (II) Permanganate
576.83
Why do most materials have no overall charge?
They have equal numbers of protons and electrons.
What does CO2 dissolved in H2O make and what can this substance do in the ocean?
- Dissolves into carbonic acid
- Substance drives ocean acidification
How do you determine which substances are the Conjugate Acid and the Conjugate Base? Which side of the equation are these on?
CA = Pairs w/ BLB
CB = Pairs w/ BLA
They are on the right side
Calculate the Molarity of Solution prepared by dissolving 79.368 g InPO4 in enough water to make 40.85 L of Solution.
0.093
Balance CE by writing Coefficients to ensure there are the same number of atoms of each element on BOTH sides of the CE.
Ba (s) + Al2(SO4)3 (aq) ----> ?
3Ba SO4 (aq) + 2Al (s)
Why are London Dispersion Forces (LDF) temporary?
Due to the constant motion in atoms.
CH4 (g) + H2S (g) <> CS2 (g) + 4H2 (g) H = -285kJ
Solve w/ Equilibrium shift + concentration when there's an increase in CH4
^CH4 = -----> H2S = down CS2 = up H2 = up
<---
How do you determine which substance is the Acid and the Base? Which side of the equation are these on?
Acid --> BLA = loses H
Base --> BLB = gains H
They are always on the left side
Calculate #mol O2 needed when 8.62 mol H2O are produced.
2C4H10 (g) + 13O2 (g) ----> 8CO2 (g) + 10H2O (g)
11.2 mol O2
What is a Combustion reaction?
Involves the burning of Hydrocarbon in Oxygen
What is the ionic compounds name of this:
Ca (CrO4)4
Calcium Chromate
CH4 (g) + H2S (g) <> CS2 (g) + 4H2 (g) H = -285kJ
Solve equilibrium shift + other elements with an increase of Pressure
ES = ---> CH4= up H2S = up CS2 = d H2= d
<--------
Shows how much CR favors product formation
We have 96.12 g C3H8. How many moles of CO2 are produced?
C3H8 (g) + 5O2 (g) ----> 3CO2 (g) + 4H2O (g)
6.537
What is a decomposition reaction?
What is the ionic compound?
Trinitrogen Pentachloride
N3Cl5
CH4 (g) + H2S (g) <> CS2 (g) + 4H2 (g) H = -285kJ
Solve by finding equilibrium shift + other elements w/ a decrease in temperature WITH KEQ
ES = ------> CH4 = d H2S = d CS2 = up H2 = up
<---
Keq = up
Calculate [OH-1] in an aqueous solution at 25 C with 1.0 x 10-12 M H+1
Determine the Solution type
1.0x10-2M
Basic
Calculate the #g O2 needed if 8.35 x 1026 molecules CO2 form.
C3H8 (g) + 502 (g) ----> 3CO2 (g) + 4H2O (g)
= 7.40*104g O2
Balance this Chemical equation.
__N2(g) + __H2(g) ----> __NH3 (g)
3, 2
What is the ionic compound?
Carbon Tetrafluoride
CF4