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A principal component of many kidney stones is calcium oxalate. A kidney stone recovered from a typical patient contains 1.5 x 1021 calcium ions and oxalate ions.
How many moles of calcium oxalate are present in the kidney stone? If this kidney stone is entirely calcium oxalate,what is the mass of the stone?
what is the frequency of light needed to eject electrons from a metal is called the threshold frequency nu0. find the
Going off of what our teacher was saying about the concept that a system's attempt to establish equillibrium is the true driving force of all chemical processes.
50.50 mL of 0.116 M HF is titrated with 0.1200 M NaOH. What is the pH after 50.50 mL of base have been added? The Ka for HF is 6.8 x 10-4
How many grams of KCOOH are needed to prepare 150 ml a buffered solution of pH 3.85 if the acid concentration, HCOOH is 0.1M
A toxic, binary, gaseous oxide is 63.65% nitrogen by mass. determine its empirical formula.
Assume that .20 mol of the acid is added to 250 mL of water. To make a buffer of pH = 4, how many moles of the conjugate base must be added to the solution?
calculate the volume of h2og at 22.0 degrees celsius and 745 mm hg you use if you begin with 350g of cogfor the
Calculate the standard enthalpy of the reaction for the oxygenation of deoxyribose to ribose
Determine the volume of 0.375 mol of C4H10 gas under the same temperature and pressure conditions?
What volume (mL) of a concentrated solution of magnesium chloride (9.00 M) must be diluted to 350. mL to make a 2.75 M solution of magnesium chloride
The activation energy of a certain reaction is 46.7 kJ/mol. At 28 C, the rate constant is .0150 s^-1. At what temperature in degrees Celsius would this reaction go twice as fast
Standard Temperature and Pressure of Chlorine, Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters. Suppose that the volume of a particular sample of Cl2 gas is 8.70 L at 895 torr and 240C.
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