Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
A water sample is suspected to be contaminated by iron (III) ions. How could you determine if the sample is really contaminated
You wish to extract an organic compound from an aqueous phase into an organic layer (3 to 6 extractions with a separatory funnel). With regard to minimizing the number of transfer steps,
The organic compound di-n-butyl phthalate, C16H22O4(l), is sometimes used as a low-density (1.046 g·mL-1) manometer fluid. Compute the pressure (in torr) of a gas that supports a 507-mm colum
Write net ionic equations for the reactions that take place when aqueous solutions of the following substances are mixed. Potassium fluoride and bromic acid. Ammonium Chloride and sodium hydroxide.
Ammonium Chloride and sodium hydroxide. Sodium cyanide and ammonium bromide. Potassium hydrogen sulfate and lithium acetate. Ammonia hypochlorite and ammonia
Calculate the molar enthalpy of combustion of cinnamaldehyde (delta H comb) (in kilojoules per mole of cinnamaldehyde).
A mixture of Na2CO3 and NaHCO3 has a mass of 81.1g. it is dissolved in 1.00L of water and the pH is found to be 9.92. what is the mass NaHCO3 in the mixture
The equation for the Beers Law- A= -log10 I/Io. Tell what each variable represents.
find the reaction conditions eg tempreatures,conditions, Pressuresetc for the process. I also would appreciate any information regarding the disposal of the waste products or recycling of them.
Write an ionic and net ionic equation for the following reaction between Fe3+ and NH3(aq)
calculate the pH of a 0.10M solution of hypochlorous acid. ka for hypochlorous acid is 3.5x10^-8
Propane (C3H8) is burned in oxygen to produce carbon dioxide and water. The heat of combustion of propane is -2012 kJ/mole. How much heat is given off when 3.0 mol C3H8 are reacted with 10.0 mol O2
A sample of nitrous oxide gas, N2O in a nonrigid container at a temperature of 33C occupies a certain volume at a certain pressure. What will be its temperature in degree Celsuis in each of the foll
how many mL of 0.294 m sulfuric acid would it take to neutralize 61.71 mL of 0.519 M sodium hydroxide
Provide three balanced chemical equations that will precipitate Pb2+ from a solution. Exclude substances containing chloride or chromate ions
A sample of an unknown gas effuses in 11.9 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.19 min. What is the molar mass of the unknown gas
What product or products would you expect to obtain by the addition of bromine to cis-cinnamic acid, assuming that it reacts by the same mechanism as the trans acid
1.00 mol HF and 0.500 mol NaOH are both dissolved in water making 1.00L solution. Calculate the pH of the solution
Standard solutions of calcium ion are suually prepared by weighing an apporpriate amount of primary standard grade calcium carbonate, dissolving it in concentrated HCl, and diluting to the appropria
Draw structure of the product(s) (show stereochemistry) of bromine addition to fumaric acid assuming that bromine adds to this compound the same way it does to cinnamic acid.
A compound used to treat manic depressives has the formula Li2CO3. Which of the following is the correct name for this compound
Calculate the molar concentration of an aqueous solution containing 10.25 g of calcium nitrate in 850.mL.
Pure HClO4 is molecular. In water it is a strong acid. Write an equation for its ionization in water. Use minimal integer numbers to balance the reaction. Include physical states in your answer, e.g
Fractional distillation was applied to separate a mixture of water and methanol. The same method was also applied to separate a mixture of carbon tetrachloride and toluene, using the same fractionat