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The titration of 321 mL of 0.501 M carbonic acid (H2CO3) (Ka1 = 4.3 x 10-7,...
Problem 15.52 For the equilibrium Br2(g)+Cl2(g)⇌2BrCl(g) at 400 K, Kc = 7.0. Part A If 0.25...
what is the pH of an aqueous solution at 25 degrees celcius that is 3.3 m...
Consider the cell S.C.E.|| cell solution| Pt(s), whose voltage is -0.126 V. the cell contains 2...
A 0.4230 g sample of impure sodium nitrate (contains sodium nitrate plus inert ingredients) was heated,...
Calculate the %T of a solution that is measured in a 4.00cm cell and has a...
Which one is more likely to form extensive crystalline regions, isotactic or syndiotactic? Explain your answer.
Give examples of electroactive organic compounds, one that can be oxidized and one that can be...
Calcium carbonate is relatively insoluble and the dissolution reaction is endothermic: CaCO3(s) ⇌ Ca2+(aq) + CO32-(aq)....
55 mL of 0.0380 M KOH and 45 mL of 0.0530 M HNO3 are mixed together....
You are responsible for designing a new heat exchanger to reheat a 100 kmol/hr water stream...
1. Classify the following compounds, as used in aqueous chemistry. That is if thrown in water...
You need to make 1L of LB plates with 50ug/ml ampicillin. If your ampicillin stock is...
1. Write the stepwise acid-base reactions for the following ions in water. Write the correct acid...
I am needing the balanced chemical equation as well as the balanced net ionic equation of...
Zircon crystals (ZrSiO4) commonly admit urnaium (U4+) but strongly exclude Pb. Deduce the valence of Pb...
A proton and Carbon-13 NMR for Catechol is described. First, the proton NMR spectrum. The solvent...
Consider the following reaction: Cu(s) + 2H+(aq) ↔ Cu2+(aq) + H2(g) E°cell = -0.34V If you...
Ethanol, C2H5OH, is produced by the fermentation of glucose, C6H12O6, in the reaction: C6H12O6(aq) ==2C2H5OH(aq) +...
Many of the reactions utilized in this laboratory experiment involve substances with small solubility product constants....
What is the %-yield of AB at equilibrium for the following reaction if 1.00 mol of...
which of the following aqueous solutions has the largest molality of benzoic acid (c6h5cooh)
CO (g) + Cl2 (g) <--> COCl (g) + Cl (g) Rate constant for the forward...
In an old trunk, you find a piece of metal that you think may be aluminum,...
Why does benzoic acid not dissolve in water or HCl acid, but completely dissolves in NaOH?
You carry out a gas chromatography experiment and find that the k' for methane is 4.46...
The chemical reactions that are used in the anion spot tests in this experiment are for...
Define isoelectric point (pI)? How does it affect net charge on an amino acid? Calculate (show...
A weighed amount of sodium chloride is completely dissolved in a measured volume of 4.00 M...
For each of the following precipitation reactions, calculate how many grams of the first reactant are...
A zero order reaction has a rate constant of 0.28 M s-1. How long will it...
Why are benzylic/allylic alcohols prone to oxidization? What characteristic allows MNO2 to oxidize them but not...
Five grams of chlorine gas are contained in a cylindrical container. The gas is at room...
A) a student measures out initial concentrations of 0.00111 M Fe3+and 0.00424 M SCN-. If the...
Problem 5.91 At 20 ∘C (approximately room temperature) the average velocity of N2 molecules in air...
Problem 5.64 Part A From the enthalpies of reaction 2C(s)+O2(g)→2CO(g)ΔH=−221.0kJ 2C(s)+O2(g)+4H2(g)→2CH3OH(g)ΔH=−402.4kJ calculate ΔH for the reaction...
Four tablets of an iron dietary supplement were destroyed by digestion, leaving the iron(III) in aqueous...
a gas mixture is made by combining the 6.8 g of each Ar, Ne, and an...
A 0.02350 M solution of NaCl in water is at 20degrees. The sample was created by...
Organic Chemictry Lab Post Lab Questions (Acid-Base Extraction) 1.) In this experiment, if the carboxylic acid...
True or False: The amount of heat absorbed or evolved is proportional to the masses of...
What is the wavelength m if n=2 to n=6
For each of the 20 common amino acids, indicate which region(s) of a Ramachandran plot they...
Calculate the pH of a solution prepared by dissolving 2.00 g of calcium hydroxide in one...
A gas stream contains 15 mole% hexane and the remainder nitrogen. The stream flows to a...
What is the Daubert challenge and why is it important to fire investigators today? Please provide...
Which is the better nucleophile in no solvent, in an aprotic solvent, and a protic solvent?...
Consider the following reaction. K is .54 at 800 K. Calculate the equilibrium partial pressures of...
Tooth enamel is Ca5(PO4)3(OH). Calculate the percent composition of the elements present. please show work
An unknown compound, known to contain three carbon atoms, yields the following results. Classify the alcohol:...
Putting sensible and latent heat together, it is now possible to figure out the temperature of...
The mass of a lithium?7 atom is 7.016003 amu. What is the nuclear binding energy of...
Would a pair of triply bonded carbon atoms be able to independently rotate?
Which of the following statements about competitive inhibitors of an enzyme reaction is true? (a) They...
The degree of dissociation of N2O4 is 0.482 at 0.597 bar and 298K. N2O4(g) --><-- 2NO2(g)...
Refer to the production of acrylonitrile (C3H3N, MM-53 g/mol) from propylene (C3H6, MM=42 g/mol) according to...
1.15 g H2 is allowed to react with 10.0 g N2, producing 2.24 g NH3. Part...
Ice cubes are placed inside a glass of water on a hot day. Before the ice...
Hi organic chemistry folks! Is there someone who can please edit any sentence structure problems (wording)...
What is the solubility of AgBr in 0.05 M NaCN? Ksp (AgBr)= 5.0x 10^-13 and Kf...
A 40.8 mg sample of carbon reacts with sulfur to form 113 mg of the compound...
Why are sodium carbonate and sodium bicarbonate considered basic?
Explain why the absorbance spectrum on 1,3-butadiene displays an absorption band (217) in the UV region...
An ion has 26 protons, 30 neutrons, and 24 electrons. The symbol for the ion is
Describe the preparation of 5 liter 0.3M acetate buffer pH 4.47 from 2M solution of acetic...
At 225oC, nitrogen dioxide, NO2, reacts with carbon monoxide, CO, to produce carbon dioxide, CO2, and...
You titrate 50.0 mL of phosphoric acid with 0m2 M OH- and reach a pH of...
How can I find the number of protons, neutrons, and electrons for isotope carbon 14
A lot of blackbody irradiation emanates from the surface of the earth. Recall that light energy...
These are Error analysis in Electrochemistry lab: A) Does an error of one or two hundredths...
the percent composition by mass of a compound is 76.0% c, 12.8% H, and 11.2% O....
Why do interhalogen compounds exhibit a decreasing bond dissociation energy as more of the same atoms...
A patient is given 0.045 mg of technetium-99 m , a radioactive isotope with a half-life...
A mixture of water and graphite is heated to 890 K in a 10.0-L container. When...
If a particular ore contains 58.9 % calcium phosphate, what minimum mass of the ore must...
Graph questions for decomposition I posted the answers in link but I do not how to...
After performing Experiment 3, you have determined that your second equivalence point occurred after adding 42.50...
SO4 2-, CO3 2-, NO2 - , Cl- , Br- , I - , and NO3...
Calculate the Ksp (solubility product CONSTANT) value of AgI if at equilibrium [I -] = 1.23...
Calculate ln Pwater and 1/T (in Kelvin units). Plot ln Pwater vs. 1/T (Kelvin ) and...
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