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Question- In the experiment, a point is made that the formation of the azo compound is a slow reaction but the rate is increased by raising the pH of the solution. Why is this necessary? In other words, how does the pH of the solution affect the reactivity of the N/N-dimethylaniline reagent?
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MnSO4 (aq) is converted to MnO2(s) in a basic medium as oxygen gas is converted to hydroxide ion. In this case, is the sulfate ion a spectator ion
assume that an astronaut's energy comes from burning glucose(c6h12o6). write 3 equations (including delta H values that represent the heats of formation for each C6H12O6, H20 and CO2.
A solution which is 0.10 m in NaCl(aq) has the same equilibrium vapor pressure as a solution which is 0.10 m CaCl2(aq)
The absorbance of a solution of NiCL2 Of unknown concentration is found to be 0.388. What is the concentration of this solution
Aniline () is an organic base used in the manufacture of dyes. Calculate the in a 0.12 solution of aniline ().
The amount of calcium in a 15.0-g sample was determined by converting the calcium to calcium oxalate, CaC2O4. The CaC2O4 weighed 12.8 g. What is the percent of calcium in the original sample
A cylinder with a moveable piston contains 0.90 mol of gas and has a volume of 342 mL. What will its volume be if an additional 0.22 of gas is added to the cylinder?
What are the mole fractions of C6H6 (x1), C3H6 (x2), O2 (x3) and N2 (x4) in the fresh feed stream. What is n6, the molar flow rate of the recycle stream
calculate the estimated ratio of the protonated form of acetylsalicylic acid to the deprotonated form of aspirin at equilibrium in the stomach? acetylsalicylic acid(Aspirin) is a weak acid with a pKa = 3.4, Stomach acid has pH = 1.4.
whose temperature is 95 C and which contains 130g of liquid. Assume the specific heat capacity of the coffee is the same as that of water. The heat of fusion of ice
Using Hess's Law and the enthalpies of fusion and vaporization of WATER calculate the theoretical value of the heat of sublimation of WATER.
what is the mass number of an iron atom that has 28 neutrons? calculate the number of neutrons ofnbsp239pu. write the
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