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Explain what is the molarity of a solution of acetic acid, H(C2H3O2), if 35.00ml is titrated to the end point with 68.20 ml of 0.750 M KOH? Explain what is the percentage by mass of acetic acid in the acetic acid solution? Assume the density of the acetic acid solution is 1.06 g/ml.
Explain when 14.0ml of HCL of unknown concentration but less than that of the base are reacted with 15 ml of 3.218M NaOH, 2.01 KJ of heat are released. Explain what is the molarity of the HCL solution
a sample of oxygen is collected in a 206 ml container over water at 15c and the barometer reads 793 torr. what volume
calculate the change in internal energy for a system that is giving of 25.0 kJ of heat and is changing from 12.00 L to 6.00L in volume at 1.50 atm pressure.
Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.50 M B(aq) with 0.50 M HCl(aq)
Calculate the volume occupied by 1.00 mol N2 using the van der Waals equation in the form of a virial expansion at its Boyle temperature. Assume that the pressure is 10 atm throughout.
What mass of zinc can be plated onto a metal sheet (a process call "galvanizing") from an aqueous zinc sulfate solution using a 0.755 amp current for 1.50days
The specific heat of the reaction mixture was 4.104 Jg-1 K-1 and its density was 1.03 g mL-1. The calorimeter constant was 3.36 J K-1. Calculate delta H neutzn for reaction of NH3 and acetic acid.
Explain what will happen in order for equilibrium to be established. Define both mathematically AND in words based on LeChatelier's Principle what you predict will happen
the density of aluminum is 2.7 gcm3. an ecology-minded student has gathered 126 empty aluminum cans for recycling. if
When 1.1g of a nonvolatile substance is added to 45.5g of benzene, the vapor pressure decreased from 97.0 to 95.7 tor. From the mol fraction of the substance in the solution estimate the molar mass of the compound
Liquid hexane, C6H14 burns in oxygen gas to yield carbon dioxide and water. What is the minimum mass of oxygen required for the complete reaction of 10mL of hexane. (density of hexane = .660g/mL)
Describe the impact of time of exposure on the amount of radiation you receive. If you are exposed for three times as long do you feel 1/3 the amount of radiation, three times the amount of radiation
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