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What determines the pitch or frequency of a string on a violin or a guitar? How does a musician get a variety of notes from one string? Explain why the crack of a whip is a "mini" sonic boom.
The Kp for the reaction is 4.3X10^-4 at 648K. Determine the equilibrium partial pressure of NH3 in a reaction vessel that initially contained 0.900atm N2 and 0.500 atm H2 at 648K.
The following compound can be used to make an addition polymer. Show the general structure of the polymer that it will form. Ch2=CH(COOCH3)(CH3)
What mass of glucose C6H12O6, would be required to prepare 5.000 X 10^3 L of a 0.215 M solution.
Complete and balance the molecular equation and write a net ionic equation, make sure to include the physical states of the compounds: 1. potassium carbonate + strontium nitrate
what is the masss concentration of water vapor in the atmosphere at 25 degrees celcius when the realtive humidity is 60
Describe the method for checking for completeness of precipitation. Why are precipitates usually rinsed with distilled water before they are tested further.
Problem- Enough of a monoprotic acid is dissolved in water to produce a 0.0190M solution. The pH of the resulting solution is 6.17. Calculate the Ka for the acid.
At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g)+I2(g) 2HI(g) Kc=53.3 At this temperature, 0.800 mol of H2 and 0.800 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present..
product and propose a mechanism when 1-pentene reacts with bromine and water followed by the addition of sodium hydride.
Calculate the density of dry air at 70 F from its average molecular mass given that the composition of dry air is 78.04 mole percent nitrogen, 20.95 mole percent oxygen, .934 mole percent argon, .0350 mole percent carbon dioxide and .00182 mole pe..
Use a combination of balanced chemical equations and their K's to calculate the equilibrium constant for the titration of formic acid with NaOH, which you used in the previous question. (Hint: You will need to include the value of Kw at some point..
A solution is colorless in phenolphthalein and blue in bromcresol green. Therefore we can conclude that the pH of the solution
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