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While preparing oxalate buffer, technicican by mistake added 0.1 M of CaC2O4. (pKsp = 7.9) to 0.2 M solution of oxalic acid(pKa's 1.25; 4.26). What is the pH of this solution? Is it a buffer?
What volume of 0.150M HClO4 solution is needed to neutralize 45.00mL of 8.80×10^-2 M NaOH?
Calculate the mass of KI in grams required to prepare 9.00 102 mL of a 1.00 M solution.
What is the osmotic pressure of human blood at 37°C if human blood is isotonic to 0.16 M NaCl solution? Remember that NaCl almost completely ionizes in water.
Look up the chemical structure of ibuprofen. Do you think it inhibits the inflammation cascade in the same way as aspirin? Why or why not?
Amstop Company issues $20,000,000 of 10-year, 9% bonds on March 1, 2007 at 97 plus accrued interest. The bonds are dated January 1, 2007, and pay interest on June 30 and December 31. What is the total cash received on the issue date?
The acid solution gives no precipitate when treated with 0.1 M AgNO3. Identify the components of the solid. EXPLAIN.
Hydrogen gas was collected over water in a eudiometer at 25 C when the atmospheric pressure was 752 mm Hg. What was the pressure of the hydrogen gas?
How long would it take for 1.50 mol of water at 100. 0C to be converted completely into steam if heat were added at a constant rate of 16.0J/s ?
If I have 7.0 moles of gas at a pressure of 0.10 atm and at a temperature of 50.1 degrees C in a balloon, what is the volume of the balloon? (Round to one decimal place.)
Many home barbeques are fueled with propane gas C3H8 What mass of carbon dioxide (in kg}) is produced upon the complete combustion of 18.9 { L} of propane (approximate contents of one 5-gallon tank)
degrees Celsius) is placed in 20.6 g of water at 25.00 degrees Celsius. What is tins specific heat if the equilibrium temperature is 47.75 degrees Celsius?
How many grams of acetic acid will you need to prepare the 500 mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution.
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