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The condensate from a steam distillation contains 8g of an unknown compound and 18g of water. The mixture steam distilled at 98 C. What is the molecular weight of the unknown
The temperature inside a pressure cooker is 1150C. Calculate the vapor pressure of the water inside the pressure cooker.
A solution of potassium hydroxide of unkown concentration is used to titrate 15.0 mL of a 2.5M sulfuric acid solution. The volume of the base is needed 27.2mL. What is the molarity of the base?
David J hooper weighs out 13.1 grams of salicylic acid in a 250 mL flask and adds 7.5 mL of acetic anhyride (density=1.080 g/mL) Determine the max (theoretical number of grams) of acetlysalicylic acid he can prepare
What mass percent of ethylene glycol in water must be used to reduce the freezing point of the mixture to -5.0degrees c?
A) How many liters of copper sulfate solution should you prepare? B) How many grams of CuSO_4_.5H_2_O must you dissolve to make that solution?
the water temperature rose from 20.27oC to 26.87oC. If the mass of water surrounding the calorimeter was exactly 1000 g and the heat capacity of the bomb calorimeter was 1.75 kJ/oC, calculate the molar heat of combustion of CH3OH. The specific hea..
What mass of ethylene glycol must be added to 1615g water to raise the boiling point to 104.3 degrees celcius?
a mass of 48.5 g of a certain substanse can be disolved in 29.1 cm3 of water at 20 degrees celcius. Calculate the solubility of this substance per gram of water at the same temperature.
Compute the enthalpy change, , for this reaction per mole of (Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 and 1.00 ] )
What is the molarity of a solution made by mixing 25 mL of 8.0 M hydrocholoric acid with 300 mL of 2.0 M hydrocholoric acid
What would happen if the buret washed and rinsed properly but not conditioned with sodium hydroxide solution, prior to standardizing the sodium hydroxide solution?
What volume in mL of concentrated nitric acid (72.0% HNO3 (w/w), sp. gr. 1.42) is required to prepare exactly 3.85 L of 0.330 M HNO3
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