### Calculate the mass percent of oxygen in methoxychlor

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A close chemical relative of the banned insecticide DDT is methoxychlor (C16H15Cl3O2). Methoxychlor is currently used as a home insecticide. Calculate the mass percent of oxygen in methoxychlor.

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 Calculate the specific heat capacity of the metal : a metal sample weighing 45.0 grams and at a temperature of 99.1 degrees Celsius was placed in 38.6 grams of water in a calorimeter at 25.0 degrees Celsius. The calorimeter reached a maximum temperature of 32.8 degrees Celsius. How much fluorine was formed : The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride produced 36.5 {rm g} of sodium upon decomposition. How much fluorine (in grams) was formed? Explain a mixture of is the reaction at equilibrium : A mixture of SO2, O2, and SO3 at 1000 K contains the gases at the following concentrations: [SO2] 5.0 x10-3 M [O2] 1.9 x10-3 M [SO3] 6.9 x 10-3 M Is the reaction at equilibrium What is the ph of the resulting solution hydroiodic acid : what is the pH of the resulting solution ? (Assume that the volume change does not change upon adding hydroiodic acid) Hypochlorous acid HClO Ka1=3.5x10-8 Calculate the mass percent of oxygen in methoxychlor : A close chemical relative of the banned insecticide DDT is methoxychlor (C16H15Cl3O2). Methoxychlor is currently used as a home insecticide. Calculate the mass percent of oxygen in methoxychlor. Determine the number of bromine molecules present in flask : A Flask contains 0.320 mol of liquid bromine,Br_2. Determine the number of bromine molecules present in the flask. Determine the amount of retained earnings : Determine the amount of retained earnings as of 12-31-2013 and create an accounting equation and record the beginning account balances under the appropriate elements. What is the final temperature of the mixture : A 54.7-g sample of aluminum at 95.0 oC is dropped into 35.0 g of water at 40.0 oC. What is the final temperature of the mixture? (specific heat capacity of aluminum = 0.89 J/goC; specific heat capacity of water = 4.184 J/g degreesC) Compute the time needed for the amount of ethane : Calculate the time needed for the amount of ethane to fall from 1.43 10-3 mol to 2.00 10-4 mol in a 500. mL reaction vessel at 700.°C.

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