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The normal boiling point for acetone is 56.5 C. At an elevation of 5300 ft the atmospheric pressure is 630 torr. What would be the boiling point of acetone (?Hvap = 32.0 kJ/mol) at this elevation? What would be the vapor pressure of acetone at 25.0 C
A 10.0 mL sample of vinegar, an aqueous solution of acetic acid (HC2H3O2), is titrated with 0.5062 M NaOH, and 16.58 mL is required to reach the equivalence point. What is the concentration of the acetic acid?
What mass of ethylene glycol must be added to 1615g water to raise the boiling point to 104.3 degrees celcius?
You use 32.0 mL of NaOH to titrate 100. mL of HCl and 22.2 mL of NaOH to titrate 50.0 mL of 0.0836 M H2SO4. Find the unknown concentrations. NaOH HCl
What is the pH of a buffer solution that is 0.255 M in hypochlorous acid (HClO) and 0.333 M in sodium hypochlorite? The Kb of hypochlorous acid is 2.63 x 10 ^-7. ( Use ICE and please show work)
A sample of a refrigeration gas in a volume of 410 mL, at a pressure of 1.26 atm, and at a temperature of 11.0 °C, was compressed into a volume of 172 mL with a pressure
The amount of EDTA used for the titration was 13.49 mL. Calculate the total hardness (mg/L or ppm of calcium carbonate) for this water sample. Give your answer to one decimal place.
CCl4 lowered the freezing point of the solvent by 5.40 K . Calculate the molar mass of the compound.
A student used 22.0 mL of 0.1035 M NaOH to titrate 20 mL of orange juice. How many grams of citric acid were present in the sample? The molar mass of citric acid, H3C6H5O7, is 192.12 g/mol.
Calculate the pressure exerted by 20 gram-moles of ammonia at 300 K in a 5-liter container, using : a. the ideal gas equation b. the SRK equation
Use metric conversion factors to solve the following problem. A park has an area of 150000 m^2. What is the area in km^2?
The resulting mixture exerts a pressure of 745 mm Hg at 95 C. What was the mass of the original sample?
How much heat is needed to convert 923 g of ice at -30°C to steam at 119°C. (The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively. The heat of fusion is 6.02 kJ/mol and heat of vaporization i..
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