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How many milliliters of 0.10 M HCl would have to be added to 100 mL of a saturated solution of PbCl2 in contact with 50.0 g of solid PbCl2 to reduce the Pb2+ concentration to 0.0050 M? (Don't forget to take into account the combined volumes of the two solutions.)
Calculate the potential delivered by a voltaic cell operating by the following reaction if all of the dissolved species have a concentration of 0.035 and the pressure of H2 (g) is 1.00 atm.
A brick consisting of pure metal measures 4.00 inches x 5.00 inches x 3.00 inches and weighs 7.020 kg. Using density, identify the metal in the brick.
The standard free energy of formation of gaseous hydrogen iodide is 1.30 kJ/mol at 25°C. Find Kp for the reaction 2HI(g) -> H2(g) + I2(s) at this temperature.
In S8 + 12O2-> 8SO3, if 10 grams of sulfur is used, how many grams of sulfur trioxide are produced?
What is the molar solubility of Co(OH)2 in a buffered solution that has a pH of 10.43?
A sample of hydrogen gas was collected over water at 36°C and 855 mm Hg. The volume of the container was 6.50 L. Calculate the mass of H2(g) collected. (Vapor pressure of water = 44.6 torr at 36°C)
Write the structure of a different product that could have been formed if you used ethanol containing substantial amount of water instead of the absolute ethanol
Which equation represents a reaction that provides the heat of formation of Fe3O4?
What effect would an increase in temperaure have on the experimentally determined Ksp of KHT?
A helium nucleus has two protons and two neutrons. How many electrons would it take to equal the mass
What proportion of benzoic of benzoic should be used with an equimolar mixture of adipic acid and hexamethylene diamine to produce a polymer of 10,000 molecular weigh at 99.5% conversion?
The experiment done was the synthesis of p-chlorophenoxyacetic acid. I have lab questions that I am unsure how to do. Please help. 1. How many moles of p-chlorophenoxyacetic acid should form in this reaction?
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