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Suppose 5.87 g of barium acetate is dissolved in 300. mL of a 71.0 m M aqueous solution of sodium chromate.
calculate the final molarity of barium cation in the solution. You can assume the volume of the solution doesn't change when the barium acetate is dissolved in it.
consider the following reaction and associated equilibrium constantaag --gt bbg kc3.1find the equilibrium
Sample has a mass of 0.171 g at a pressure of 761 mm Hg and a temperature of 32oC. What is the molar mass of the gas? R=0.0821 L atm / mol K
The partial pressure of O2 in the exhaust is 75.19 mmHg and the partial pressure of CO2 in the exhaust is 47.94 mmHg. What is the mole fraction of propane in the fuel stream? (mol C3H8 / mol)
Write a chemical equation for Ca(OH)_2 (aq) showing how it is an acid or a base according to the Arrhenius definition.
Using the following equation: 2AgNO3+MgBr2->2AgBr+Mg(NO3)2 calculate the moles of silver bromide and magnesium nitrate produced by 85 mol of magnesium bromide reacting with silver nitrate.
a certain first-order reaction is 66 percent complete in 65 seconds. Calculate the rate constant for this reaction
Two solution are mixed, Zn(NO3)2 and Na2CO3. If at the instant of mixing the [Zn(NO3)2]=3.7x10^-5M and [Na2co3]=1.5x10^-6M will a precipitate form?
What volume of 0.200M HCl must be added to 250.0mL of 0.300M sodium mandelate to produce a buffer solution with a pH of 3.37.
not all element names come from english or latin words. the sysmbol for tungsten is w from the german word wolfram. the
Fe(s) + 2HCL(aq)goes to FeCl2(aq) + H2(g) Change in enthalpy is -87.9kJ. How much heat is liberated at constant pressure if .368 g of iron reacts with 18.8mL of 0.568 M HCl?
After the reaction was complete, nitric acid was added to dissolve the AgSO3 but not the AgSe. The Ag+ from the dissolved Ag2SeO3 and the excess reagent required 16.74mL of 0.01370 M KSCN in a Volhard titration. How many milligrms of Se were conta..
Calculate the number of moles of NH3 present in solution when 9.5ml of 0.500 M NaOH is used to back-titrate an aqueous solution of Cu(NH3)4SO4xH2O to which 35.00ml of 0.500 M HCL has been added.
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