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11.6 mL of 3.0 M sulfuric acid are required to neutralize the OH- in 25.00 mL of NaOH solution. What is the molarity of the NaOH solution?
A 250 gram sample of water at the boiling point had 45.0 kJ of heat added. How many grams of water were vaporized? Heat of vaporization for water is 40.6 kJ/mole
A saturated solution of iron(II) hydroxide at 25°C contains 1.0 x 10-5 M Fe2+ ions. Determine the ?G° for the solution at this temperature.
Assuming all gases are at the same pressure and temperature, how many liters of CO2 are formed from 15.0L of CO.
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added)? The initial ph is 3.96. 1. What is the pH after 2.60 mL of NaOH are added? 2. What is the pH..
If the total pressure in the flasks is 311 torr after the stopcock is opened, determine the initial pressure of N2 in the 1.00 L flask.
what is the theoretical yield of PbI2 in grams? g) if the student obtained .583 grams of PbI2 product after collecting it by filtration and drying it, what was the percent yield of PbI2 obtained?
A solution is prepared by mixing 50.0 mL of 0.50 M Cu(NO3)2 with 50.0 mL of 0.50 M Co(NO3)2. Sodium hydroxide is added to the mixture. Which precipitates first?
determine the throat diameter of a Venturi meter which would measure a flow of 0.4 m3/s in a pipe of 0.6m diameter with a differential head of 0.8
Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated from the thyroid gland. If 0.455 g of thyroxine is dissolved in 10.0 g of benzene, the freezing point of the solution could be measured as 5.144oC.
You take 1 ml of your sample and dialyze it in 1000 ml of buffer. At the end of dialysis what is the concentration of (NH4)2SO4 in your sample. How could you further lower the (NH4)SO4 concentration
The molar heat of fusion of naphthalene (C10H8) is 4610cal/mol. What is the heat of fusion in kJ/g
potassiumm chlorate (KClO3) decomposes to form potassium chloride and oxygen gas. if 5.4 moles of potassium chlorate decompose, how many moles of oxygen could be produce.
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