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At 22 °C an excess amount of a generic metal hydroxide M(OH)2 is mixed with pure water. The resulting equilibrium solution has a pH of 10.35. Explain what is the Ksp of the salt at 22 °C?
Assume an indicator works best when the equivalence point of a titration comes in the middle of the indicator range. Which indicator would be best for the following titration? 0.100 M hydrazine (Kb = 3.0 × 10-6) + 0.100 M HCl
The Ksp of Ba3(Po4)2 is 6.0 x 10^-39. How many grams of Ba3(PO4)2 can be dissolved in 250mL of solution before the solution become saturated. Molar Mass of Ba3(PO4)2 = 601.9 g/mole
determine the enthalpy change if the heat released when 24.9 grams of potassium k reacts with excess h2o water is 124
Advantages and disadvantages of using Alternative Fuel and Would you consider buying one of these in the future? Why or Why Not and Why do you think there are not more of these vehicles in use?
A carboxylic acid favours the ion form (R-COO-) and its pH is higher than its pKa. In most membranes, the polar heads of the phospholipids align towards the middle of the membrane.
Determine the volume, in mL, of 2.00 M HC2H3O2 required to prepare each of the following solutions: 0.20 M acetic acid, and 0.020 M acetic acid.
a solution of 5.0g benzoic acid c6h5cooh in 100.0g of carbon tetrachloride has a boiling point of 77.5c. the boiling
This solution had an absorbance of 0.810 at 510 nm and 0.476 at 656 nm in a 1.00-cm cell. a) Calculate the concentration of cobalt (in ppm) in the initial solution prepared by dissolving the sample. b)Calculate the concentration of nickel (in ppm)..
Justify the Born-Oppenheimer approximation based on vibrational frequencies and the timescale for electron motion.
A mixture of Na_2CO_3 and NaHCO_3 has a mass of 81.5 . It is dissolved in 1.00 of water and the pH is found to be 9.92. Find the mass of NaHCO_3 in the mixture?
a certain anesthetic contains 64.9 percent C, 13.5 percent H, and 21.6 percent O by mass. at 120 grades celcius and 750 mmHg, 1.00 L of the gaseous compound weighs 2.30g. What is the molecular formula of the compound?
Oxalic acid, H2C2O4 has acid dissociation constants Ka1 = 5.9 x 102 and Ka2 = 6.4 x 105. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2SO3
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