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A student completes a titration of an unknown diprotic acid. In this experiment, 0.79 g of the acid is dissolved in 250.0 mL of water. It requires 13.48 mL of 1.0 M NaOH to reach the second equivalence point. What is the molar mass of the acid?
How many grams of sodium sulfate will be formed if you start with 200 grams of sodium hydroxide and you have an excess of sulfuric acid
water skier is pulled by a net force of 180 N and has an acceleration of 2.4 m/s2. What is the mass of the skier?
Hydration of alkynes (via oxymercuration) gives good yields of single compounds only with symmetrical or terminal alkynes. Draw the major organic product(s) formed when hex-2-yne undergoes hydration
Determine the pressure of the gases trapped in the closed end of a manometer apparatus if the water column which separates the closed end from the open end is 10.55 cm higher on the closed end than the open end, and if the barometric pressure at t..
determine what volume of 3.00m hcl in liters is required to react completely with 0.500l of 0.200m na2co3?a gas sample
Calculate the equilibrium value of Pb+2(aq) in 1.00 L of saturated PbCl2 solution to which 0.250 moles of NaCl(s) has been added. Assume that no volume change occurs.
An 11.79 sample of mo2o3(s) is converted completely to another molybdenum oxide by adding oxygen. the new oxide has a mass of 12.578g. What is the Empirical formula of the new oxide
Metallic aluminum reacts with MnO_2 at elevated temperatures to form manganese metal and aluminum oxide. A mixture of the two reactants is 67.2% mole percent Al.
write the equation for self-ionization of water and why ammonia is a weak base.
Explain why an object whose color is purple actually absorbs visible light in the green wavelength region.
Determine the concentration of a solution of Mg(NO3)2 given the precipitate formed is 2.97 g and there are 50mL of Mg(NO3)2 and 50 mL of NaOH. Please show all work for each step clearly
calculate the standard molar enthalpy of formation delta H degree f of N2H4(g) from the following information
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