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Determine [Zn2+] [CN-] [HCN] in a saturated solution of Zn(CN)2 with a fixed pH of 2.390. The Ksp for Zn(CN)2 is 3.0x10^-16. The Ka for HCN is 6.2x10^-10. Equation: Zn(CN)2(s)-> Zn2+(aq) + 2CN(aq) a) Write pertinent reactions b) Write charge balance equations c)Write mass balance equations d)Write the equilibrium constant expression for each reaction e)Count the equations and unknowns f)Solve for unknowns
suppose 7.70g of methane is mixed with 54.7g of oxygen . Calculate the maximum mass of water that could be produced by the chemical reaction
the likely intermediates in the mechanism and the expected isomeric products from the pathways of the mechnanism. Also please help to identify the major product attained.
Calculate the pH at the following points a. Before Titration b. After the addition of 5.00mL of NaOH c. After the addition of 25.00mL of NaOH d. After the addition of 50.00mL of NaOH e. After the addition of 5.00mL of NaOH
Molar Concentration of Copper (II) Nitrate, A 25.00 mL sample containing Cu2+ gave an instrument signal of 23.6 units (corrected for a blank). When exactly 0.500 mL of 0.0287 M Cu(NO3)2 was added to this solution
The solubility of CO2 in water at 25 degrees celsius and 1 atm is 0.034 mol/L. What is its solubility at a partial pressure in air of 0.00017 atm? Assume that CO2 obeys Henry's Law. Enter your answer in scientific notation.
Which of the water samples that you tested had the highest calcium concentration. does this correlate with the total dissolved solids results you obtained
A sample of oxygen gas is collected over water at 25 degrees C. and a total pressure of 654 torr. The volume of gas collected is 500 mL. What mass of oxygen is collected? The vapor pressure of water is 25 degrees C at 23.8 torr.
what is the half life for this reaction B) how long will it take for the concentration of SO2Cl2 to decrease to 25 percent of its initial concentration C) if the inital concentration of SO2Cl2 is 1.00 M
Imagine a solution at 25 oC which contain 25.0 mL of ethanol (d = 0.800 g/mL) and 40.0g of water (d =1.00 g/mL). At this temperature the vapor pressure of water is 23.8 Torr and that of ethanol is 60.8 Torr.
sulfuric acid acts as a catalyst for making esters. Write an equation showing the production of Isoamyl alcohol
Volume of added base required to reach the equivalence point? State the pH at one half of the equivalence point
Calculate the change in free energy (Delta G) for the combustion of 1 mol of ethane C2H6 in oxygen gas. The products are carbon dioxide and water.
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