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Problem- Calculate the pH of a buffer solution obtained by dissolving 17.0 g of KH2PO4(s) and 32.0 g of Na2HPO4(s) in water and then diluting to 1.00 L.
Express your knowledge to solve the above question
Mg + 2 HCL -> MgCl2 + H2 What volume of hydrogen at STP is produced from the reaction of 50.0 g of Mg and the equivalent of 75 g of HCl?
The same vessel was then tried and filled to the same mark with a solution at 4 degree Celsius .the vessel was now found to weight 20.33gm. What is density of the solution.
What is the concentration of hydroxide ions in pure water at 30 degrees, if Kw at this temperature is 1.47 x 10^-14
What is the equilibrium partial pressure of NH3 in atm?
Show how each of the following compounds could be prepared from 3-pentanone. In most cases more than one synthetic transformation will be necessary.
Consider the cell described below: Al| Al3+ (1.00 M) || Pb2+ (1.00 M) | Pb Calculate the cell potential after the reaction has operated long enough for the [Al3+] to have changed by 0.60 mol/L.
Compare the electron-dot of CH4 and H2O. Why do these molecules have similar bond angels but different names for their shapes
If 16.0 mL of .150 M HCL is needed to neutralize all the NH3 from a 2.25-g sample of organic material, calculate the mass percentage of nitrogen in the sample.
Gallium-68 decays by positron emission, with a half-life of 68.3 min. How much 68Ga remains from a 10.0 mg sample after 683 min
For a given reaction, the reaction forms predominantly products at equilibrium (i.e. it essentially goes to completion). Which of the following represents a reasonable value for K
An industrial flavor-enhancing process requires that a butter-flavored food be heated briefly at 200 degrees Celsius. Explain how long can the food be heated at this temperature and retain 68% of its butter flavor?
determine the density in gml of a 0.70 g sample of oxygen gas that occupies 5.0l. compare the density of oxygen gas to
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