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Balance the following skeleton reaction and include states of all reactants and products in your balanced equation. \(CrO_{4}^{2-}(aq)+N_{2}O(g)->Cr^{3+}(aq)+NO(g) [acidic]\)
Show how the following compounds could be synthesized from benzene a. benzoic acid b. aniline c. m-chloroenzenesulfonic acid d. m-chloroethylbenzene e. m-brombenzonitrile f. benzyl methyl ether g
A 72.0 mL volume of 0.25 Moles HBr is titrated with 0.50 Moles KOH. Calculate the pH after addition of 36.0 mL of KOH
A 4.78- sample of aluminum completely reacts with oxygen to form 6.67 of aluminum oxide. Use this data to calculate the mass percent composition of aluminum in aluminum oxide.
One liter of a buffer solution is prepared by dissolving 0.150 mol of NaNO2 and 0.070 mol of HCl in water. What is the pH of this solution? If the solution is diluted two fold with water, what is the pH?
A balloon is filled with helium to a volume of 1.05 x 10^3 L on the ground, where the pressure is 745 mm Hg and the temperature is 20. °C. When the balloon ascends to a height of 2 miles
The solubility of nitrogen gas in water at 0 degree celcius and 1.0 atm is 23.54 mL per liter of the solution. (a) Calculate the Henry Law constant at 0 degree celcius
Isotopes Decay, Isotopes decay according to first order kinetics with a predictable half life
A second assay was performed by making a derivative, ammonium phospho-molybdate, which has visible absorption peak at ~ 400nm. From the Beer's Law plot, estimate the concentration of the unknown solution:
How many protons, and how many neutrons are present in the nucleus of each isotope? What is the natural abundance of each isotope, if the average atomic mass of gallium is 69.72 u?
if 100% of the NaCl molecules dissociated, the van't Hoff factor i=2 calculate the experimental van't Hoff factor of NaCl from your data. I dissolved 30 g of salt into 100ml of water
You have given some solutions as A. O.6MNH3 b. 0.150MKOH c. 0.100M Ba(OH)2 you just need to determine that which of the given solution is the most basic also give explanation for your answer?
If it takes 526 J of energy to warm 7.40 grams of water by 17 degrees Celsius, how much energy would be needed to warm 7.40 grams of water by 55 degrees Celsius?
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