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Problem- Nitric oxide, NO, is made from the oxidation of NH3, and the reaction is represented by the equation 4NH3 + 5O2 ï?® 4NO + 6H2O An 9.1-g sample of NH3 gives 12.0 g of NO. The percent yield of NO is.
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a robust first grader goes for swimming lessons three times a week and he enjoys it thoroughly. during the first week
The distribution constant for x between n-hexane and water is 9.6 Calculate the concentration of x remaining in the aqueous phase after 50ml of x are treated by extraction with the following quantities of n-hexane:
Draw the structure of an organic compound: a. that has the formula C7H12O and has peaks at 2950 cm-1, 2750 cm-1, and 1745 cm-1 in it's IR spectrum.
the reaction between trans-2butene+potassium tert-butoxide+CHCl3 produces which: meso compund or pair of enantiomers. Explain
Question- Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.100 M phosphoric acid solution.
magnesium ions can be precipitated from seawater by the addition of sodium hydroxide.how much sodium hydroxide in grams
You perform a mass spectral analysis and determine that Sample A has a base peak at m/e = 72 as well as Sample B has a base peak at m/e = 58. For alkyl amines such as A and B, base peaks result from cleavage alpha to the N atom. Allot structures t..
A blight has wiped out the pineapple crop. You are asked to synthesize the ester that is responsible for the scent of pineapple, butyl butanoate. Draw the skeletal structure of the reagents needed to make this scent.
The temperature of the calorimeter increases by 82.9oC (Celsius). Given that the energy of combustion (?E) for lauric is -37.1 kJ/g, calculate the heat capacity of the bomb calorimeter. Make sure you enter kJ/C for your unit behind the number.
A weather ballon is filled with helium to a volume of 305L at 28 degree celcius and 751 mmHg . The ballon ascends to and altitude where the pressure is 504 mmHg and temperature
What must be the velocity, in meters per second, of a beam of electrons if they are to display a de Broglie wavelength of 83.7 ?m?
6.48g of NAH2PO4 and 21.96 g of K2HPO4 are dissolved in sufficent water to make a liter of solution. Caluclate the ph of the resulting solution.
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