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Explain how it provides the foundation for most modern quantum mechanicalcalculations of chemical importantce. How is it that advances incomputer memory and processor speeds have made it possible to
Assuming no changes in the volume of the solution, determine the pH, the concentration of barium ions in the final solution and the mass of solid formed.
An 8.89 g ice cube, initially at -12oC, is placedin a closed insulated container. A heater adds 600W for 45 seconds.Determine the final state of the system. (Assume the container heatcapacity is ne
You have a 10.40-g mixture of table sugar (C12H22O11) and table salt (NaCl). When this mixture is dissolved in 150. g of water, the freezing point isfound to be -2.24°C.
If a man runs his column chromatography on a Friday afternoon,gets the two compounds to separate three-fourths of the way down the column, and returns Monday to see that the compounds ran off the mi
What is the reason sulfuric acid is necessary for the nitration reaction of methyl benzoate? Is it acting as a reagent or a catalyst?
At an altitude of 19,350 Feet atop Mount kilimanjaro in Kenya, the boiling point of water is 81 degrees Celsius. Determine the normal atmospheric pressure on the mountain.
Calculate the difference in slope of the chemicalpotential against temperature on either side of By how much does the chemical potential of water supercooled to-5.0°C exceed that of ice at that te
Based on the electronic configuration of the iron species in the compound, show that a favorable 18- electron inert gas configuration is established at the iron atom.
In the formation of diacetylferrocene, the product is always theone in which each ring is monoacetylated. Why is diacetylferrocene produced in which both acetyl groups are on the same aromaticring?
20.0 grams of each reactant are placed in a vessel and allowedto react. Calculate the maximum amount of Chlorine that canbe produced from the reaction. Also calculate the theoretical amounts, in gra
A 350. mL container holds 0.146 g of Ne and an unknown amount of Arat 35° C and a total pressure of 622 mmHg.Calculate the moles of Ar present.
If 5.00 L of carbon dioxide at 500 torr and 3.00 L of methane at 400 torr are put into a 10.0 L container. What is the pressure exerted by the gases in the container?
How could you determine whether a white powder was zinc sulfide or sodium carbonate using a hydrochloric acid solution? Write balanced equations.
A buffer solution is prepared by mixing 75ml of a 0.275M ofC7H5O2F wilth 55ml of a 0.472M solution of C7H4O2FNa. The pKa ofthis weak acid is 2.90. What is the pH of the buffer solution?
A 0.187-g sample of a CO32- antacid is dissolved with 25.0 mL of0.0984M HCL. The hydrocloric acid that is not neutralized by theantacid is tirated to a bromophenol blue endpoint with 5.85 ml of0.091
We are given an environmental engineer takes an air sample that hasbeen polluted with Sulfur Dioxide. The sample size is 500 mLat 700 torr and 38 Degree C.
HO2 is ahighly reactive chemical species that plays a role in atmostpheric chemistry. The rate of the gas-phase reaction HO2(g)+HO2(g)→H2O2(g)+O2 is second order in [HO2] with a rate constant
Google the structure and molar mass of caproic acid.Using the empirical expression given in class for the surface tension of aliphatic (saturated carbon chain) acids (with b=232.7L/mol for caproic a
A 100g of bulk water is dispersed as droplets of radius0.5x10-5 mm. If the surface tension of water is7.2x10-2 N/m, what is the change in free energy inkJ?
A hot piece of silver metal , 552.0g,in mass, was dropped into acup containing 332.8g of cold water. The final temperature of the water is measured to be 18.2 celcius. It was determined that the wat
A S2- ion-selective electrode gave an electrodepotential of E = -0.254 V when immersed in a 7.76 10-2 M standard K2S solution. Assuming thatthe electrode behaved ideally, calculate the molarity of a
A student determines the molar mass of acetone,CH3COCH3, by the method used in thisexperiment. She found that the equilibrium temperature of amixture of ice and water was 1.0oC on her thermometer.
What is this value in units of ppm (weight/weight)? Did the water from the Dublin Road Water Plant contain an acceptable level of nitrates?
What is the pH of a solution prepared by adding 20.0mL of 0.10M acetic acid and 10.0mL of 0.10M sodium acetate? What is the pH after the addition of 1.0mL of 0.10M HCl to15mL of the solution?