Le Chatelier’s Principle, pH, & Ocean Acidification
what has occurred in the past 200 years?
pH of ocean has dropped to 8.1
label the acids and bases
Cb,Ca,Bla,blb,
Calculate limiting reactions for the number if smors, Grahm crackers and chocolate?
marshmellows
calculate molar mass for Zn2HPO4=Zinc CD Hydro
MM CZn2 HPO4 = 226.74 g/mol
what type of intermolecular force is the strongest and gives water,its unusually high building point?
hydrogen bonding
compare and contrast general equations for strong and weak acids.
High conductivity has a low pH and low conductivity has a high pH.
what are the bases used for?
cleaning products
calculate the g# MgCL2 needed if 9.62x1027 molecules ALCL3 from.
BCE: 3MgCL2(aq)+2AL(s) #Mg(s)+2ALCL3(aq)
2.28x106(g)xMgCL2
Br2(g)+HCl(aq)
Br2(g)+HCl(aq) NR
which 3 highly electronegative elements must be bonded to hydrogen for a hydro to bond a form?
Flourine, oxygen, and nitrogen
N2(g)+3H2(g)=2NH3(g) H=-92kJ
what is the Equilibrium shift if the concentration of [N2] increases?
right
what are three common proportions of bases, and what is one everyday example of a base?
taste bitter,feel slippery, have a pH greater than 7
soap and bleach
we produce 78.5 g NH3. How many moles of H2 are needed?
17.04g/mol
How many products are on the right side of the chemical equation
2CO+O2 2CO2
one single product = A+B HB
when writing the name for a chemical formula containing a transition metal (like FeCl3) what must be included in the name to show the metals charge?
roman numerals (chloride)
N2(g)+3H2(g)=2NH3(g) H=-92kJ
which way does the pressure need to increase in.
right
Do the amounts of reactants and products change at equilibrium?
No, The reactants happen at the same speed in both directions, meaning reactants and products stay constant.
calculate the molar mass of the solute (NaOH)
40.00g/mol
what does single displacement look like?
A+BC AC+B
when writing the formula for (Calcium Phosphate) what must you do for the ion(Ca+2) and Phosphate ion(PO-3) to find correct subscribts?
you must cross or balence the charges
N2(g)+3H2(g)=2NH3(g) H=-92kJ
is the tempature increasing or decreasing
increasing
calculate [H+1] in an aq solution at 25*C with a [OH-1] of 1.0x10-8m. Acidic, Neutral, or Basic?
[H+1]=1.0x10-6m
Acidic
calculate #mol H2O produced with 1.068 mol CO2.
0.801mol O2
Balence this equation
_H2O(g)+_CO2(g) _C7H8(g)+_O2(g)
4H2(g)+7CO2(g) C7H8(g)+9O2(g)
when writing the formula sodium solfide, why do you need two sodium ions( Na) for every one sulfide ion?
to balence the charges so the compound becomes neutral (Na2S)