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Question- When crystalline solid barium hydroxide octahydrate and crystalline solid ammonium nitrate are mixed in a beaker at room temperature, a spontaneous reaction occurs. The temperature of the beaker contents rapidly falls below zero degrees Celsius. Use this information to decide whether the reaction is exothermic or endothermic and what the signs of delta H and delta S are.
A 0.10-mole quantity of CuSO4 is added to a liter of 1.0 M NH3 solution. What is the concentration of Cu2+ at equilibrium. [The formation constant for Cu(NH3)42+ is Kf = 5.0 x 1013.]
NaBr + H2SO4 ---> HBr + NaHSO please descride the mechanism for SN2 reaction in the equation
if argon of 0.214 mol nbspoccupies 652 ml determine the volume of 0.375 mol of c4h10 gas under the same temperature and
What volume of 3M H2SO4 is needed to neutralize all of the disodium salicylate and the excess NaOH present after the initial reaction. How much sulfuric acid was in excess
Write the balanced equation for the yeast using glucose to produce energy, ethanol and carbon dioxide.
A gas mixture in a 4.600 L container at 415°C contains 1.00 g each of Ar, CO, and CH4. Find the partial pressure of CH4. Enter units.
assume standard biological conditions and that all the enzymes are present to catalyze the reactions . the following are sequential enzyme reactions in a pathway
some amount of potassium dichromatenbsp k2cro7 thatnbsp is 2.335 g isnbsp dissolved in enough h2o to prepare a
Combinations of palladium(II) cations, triphenylphosphine molecules, chloride anions, and ammonium cations result in the formation of a series of five coordination compounds.
Problem- Water is to be pumped from a lake to a ranger station on the side of a mountain. The flow rate is to be 95 gal/min, and the flow channel is a standard 1-in. Schedule 40 steel pipe. A pump capable of delivering 8 hp shaft work is available..
A growth factor for cells was identified from extracts of rat brain. Preliminary characterization was done on this activity using several methods.
how would you prepare 100ml of 0.5M NaOH? Calculate the mass of NaOH needed, and describe the procedure and glassware you would use.
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