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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?
Potassium chlorate decomposes into potassium chloride and oxygen. how many moles of potassium chlorate are required to form 32 grams of oxygen.
calculate the molar mass of the acid. B. After 10.00 mL of base had been added during the titration, the pH was found to be 5.87. What is the Ka of the unknown acid
A lake has a pH of 8 and the total molar concentration of nitrogen species (NH3 and NH4+) is 7.1×10-4 mol/L. what is the percentage of aqueous NH3 in the lake
A liquid fuel mixture contains 28.25% hexane, 14.05% heptane, and the rest octane. What maximum mass of carbon dioxide is produced by the complete combustion of 12.0kg of this fuel mixture
How many grams of dry NH4Cl need to be added to 2.30L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.83? Kb for ammonia is 1.8 * times 10^-5
Cyclohexane, C6H12, undergoes a molecular rearrangement in the presence of AlCl3 to form methylcyclopentane, CH3C5H9, according to the equation
A sample of gas occupies 10.5 L at 600 torr and 50C. What volume will it occupy at STP?
When most Fe3+ salts are dissolved in dilute nitric acid, the solution is often yellow to orange-yellow in color. Why could you not visually detect these colors in the Fe(NO3)3 stock solution
The density of aluminum is 2.70 g/cm3. What is the volume of one mole of aluminum?
What volume (in milliliters) of 0.100 M NaOH should be added to a 0.120 L solution of 0.024 M glycine hydrochloride
A particular brand of gasoline has a density of 0.737 g/mL. How many grams of this gasoline would fill a 14.4 gal tank?
Physiological saline solutions used for intravenous injections have a concentration of 0.90% NaCl by weight
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