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A quantity of 1.435 g of napthalien upon pungent smelling substance used in moth repellents was burned in a const. vol. bomb calorimeter consiquently the temp. of H20 rose temp. 20.17 c to 25.84 c. I f the mass of H20 sorrounding the calorimeter was exactly 2 kg and the heat capacity of the bomb calorimeter was 1.80 kj/c. Calculate the heat of combustion of napathalien on a molar basis. Find the molar heat of comb.: q/1 mol. of napthalien
what we observed that 1.00 mole Hydrogen, 1.00 mol Iodine and 1.00 mole hydrogen iodide are introduced into a container of capacity 1.00-L. compute the concentrations of each species if equilibrium is reached?
Using stereoformulas, show that reduction of (R)-benzoin from the more hindered face would give give (R,R)-hydrobenzoin. Please no links to external sites. Be clear and concise.
Calculate the molar absorptivities for In- at 454 and 654nm, set up two simultaneous equations, and determine the molar concentrations of HIn and In- in the buffer solutions
Write the balanced equation for the decomposition of one mole of NH4CO2NH2. b) Calculate K at 313 K.
The specific heat of water increases at a constant rate. The specific heats of NaOH, HCl, and the product of the reaction are the same as that of water.
Calculate the pH of a solution with the following: 5.12 moles of HCl are placed in a 3.00 L of water 4) Given the acid pKa is 4.76. Calculate the pH of a 0.35M acetic acid solution:
compute the volume of sodium hydroxide that is required to make a buffer with a pH = 5.77.? given that pKa = 4.77. and initial volume of the acid solution = 1.00 Litre.
What concentration of aqueous NaCl solution freezes at -15.2ºC? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
In the bromination of ethane (C2H6) reaction, one wants to produce 10.0 g of C2H5Br product. How many grams of C2H6 would be needed to react with excess Br2.
Write equations for the reaction of the glyceride written in question 1 above with each of the following: a. an aqueous solution of sodium hydroxide b. hydrogen in the presence of a catalyst and at elevated temperature and pressure c. a 5% solutio..
This increases to 0.010 Msec^-1 at 90 degrees C. Calculate the activation energy for this reaction.
what mass of PbSO4, is produced when 25.0 Ml of 0.2338M Pb(NO3)2 solution is added to 25.0 mL of 0.0971M Al2(SO4)3 solution,
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