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Explain which occurs in the aqueous acid solution. Determine the coefficient of H2S when the equation is balanced by using the set of smallest whole-number coefficients?
A pure substance A has a liquid vapor pressure of 800 mm Hg at 150°C, 320 mm Hg at 125°C, and 60 mm Hg at the triple point, 85°C. The melting point of A decrease slightly as pressure inc
Assume the solution behaves ideally. Consider an aqueous solution containing sodium chloride that has a density of 1.01 g/mL. The freezing point of this solution at 1.0 atm is -1C. Determine the pe
Describe the relationship between the ionic radii and the atomic numbers of the Noble gases? Determine the importance of obtaining the percent yield of a product.
Calculate the final temperature and volume, consider one mole of ideal gas at 0oC, if the gas is expanded by reducing the pressure from 5 atm to 1 atm by:
Determine the theoretical yield of cis stilbene and Tran's stilbene withes staring material of 100 microliters and 100 mg respectively.
Illustrate the complete, condensed, and line structural diagrams for the isomers of C5H12. Determine the numbers of true isomers did u draw and find out the difference among the tru
Discuss how would the electrons formed in a cathode ray tube filled with the neon gas compare with the electrons formed in a cathode ray tube filled with chlorine gas?
Determine the numbers of mols of iron ion are there in the solution? Determine the numbers of mols of phosphate ion are there in the solution?
What is the molecular formula of the compound when an analysis of a compound shows that it contained the 21.8% H and 78.2% B and hand a molecular weight of 27.6.
What weight of pyrite ore must be taken for analysis so that the BaSO4 precipitate weight obtained will be equal to one-half that of the percent S in the sample when a sample of pyrite ore (imp
A mixture containing only AgCl3 and FeCl3 weighs 5.95 g. The chlorides are converted to the hydrous oxides and ignited to Al2O3 and Fe2O3. The oxide mixture weighs 2.62 g. Determine the p
Divide the following reaction into half-reactions, balance the half-reactions, and combine the balanced half-reactions into the balanced overall equation for the reactions.
What volume will this sample occupy at the same temperature, but at 2.94 atm when a sample of cyclopropane (C3H6), a colorless gas with a pleasant odor that finds use a general anesthetic, occupies a
Determine the volume of gas measured at the room temperature and pressure -liberated at the cathode in the electrolysis of acidified water by the 6 Faradays of electricity which is having one mole
Determine the %Fe in the unknown if a 2.893g sample of an unknown containing iron requires28.45 mL of the permanganate solution described above to reach the endpoint.
Explain how do bond angles in each compound compare to the values that would be expected if the carbon atoms were perfectly trigonal, tetrahedral, or linear?
Determine the relationship between the c-c bond orders, i.e single vs. double vs. triple bonds, and the c-c and c-h bong lengths? Do both types of bond lengths show the same correlation with the bo
When the temperature is raised to 700 K, the value of k increases to 6.36 x 103-3 s-1 at 600 K, the k is 1.60 x 10e-5 s-1. What is the activation energy for this reaction?
Determine the numbers of grams of water must be added to 200 mL of NaOH solution in order to have a solution which is having the specific gravity of 1.157, 13.55%? Where the specific gravity of NaO
2 Naphthnol and Benzoic acid each melt at the 122 degrees Celsius. A sample of unknown solid melts around 122 degrees Celsius. Describe a method to calculate the identity of the unknown compound wh
How many joules of energy are absorbed by the silver? (Cp Ag = 25.3 J/mol-K, 1 mole of silver (Ag) has a mass of 107g) when a piece of silver with mass of 5.0 g is immersed in the 40.0 g of water.
Determine the final temperature in Kelvin when an electrical heater is used to supply 235.0 J of energy to a 25.0 g sample of water (specific heat is 4.18 J g-1 deg-1), originally at the 290.0
Determine the heat released when the 2.00L of Cl2(g) with a density of 1.88 g/L react with an excess of sodium metal at the 25degree Celsius and 1 atm to form sodium chloride.
Suppose you have 3.240 L of a 0.1737 M H3BO3 (boric acid, Ka=5.8000x10-10) solution. To convert this into a buffer having a pH of 9.1484, determine the numbers of grams of KH2BO3 (M.W. 99.92