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Starting with 1 liter of 2.0 M CH3COOH (acetic acid) we wish to make a buffer solution of pH=4.00. Consider the following to make the buffer: One way would be to add sodium acetate. How many moles must be added (assume no volume change)
Draw the structure(s) of the alkene(s) with the molecular formula C6H12 that have two methyl branches on the same carbon.
A radioactive element has a half-life of 2.2 hours. How many hours will it take for the number of atoms present to decay to one-sixteenth of the initial value? Show your calculations please.
Calculate the pH of each of the following solutions. (a) 0.500 M HONH2 (Kb = 1.1 10-8) (b) 0.500 M HONH3Cl
Diphenylethyne can be prepared from meso-1,2-dibromo-1,2-diphenylethane, by double E2 elimination via the corresponding alkene. a) Which alkene is initially formed?
a sample of a solid of 29.19 grams is placed in a flask. toluene is added to the flask toluene in which the solid is
The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130J of heat. As it expands, it does 76kJ of work. What is the change in internal energy for the system?
Why exactly are oxidation reactions one in which a oxygen is inserted into a bond, hydrogen is removed from a bond, and a more electronegative atom is inserted in the bond, replacing a carbon or a hydrogen
Sodium bromide, used to produce silver bromide for use in photography, can be prepared as shown in the following equations. How many kilograms of iron are consumed to produce 4.15 × 104 kg NaBr
Lindane, a powerful insecticide, is a member of this group. The molar mass of lindane is 290.8. How many atoms of carbon does a molecule of lindane contain
What carbonyl compound would the following condensation product? Which of the following could result from a self-aldol condensation followed by dehydration?
indicate whether each of the following statements indicates an acid or a base. a. makes a red ant sting b. produces OH- in water c. Has a soapy feel D
The heat of vaporization for the compound is 27.49 kJ/mol. Calculate the heat required to convert 27.0 g of C2Cl3F3 from a liquid at 12.00°C to a gas at 68.00°C.
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