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In the emission spectrum of helium, there are strong lines at wavelengths of 447.1 nm, 501.6 nm, and 587.6 nm. Using the Balmer-Rydberg equation, determine the values of nf for each emission.
A sample of gas occupies 7 ml at stp. at what pressure would this sample occupy 500 ml if the pressure was changed to 525 degrees c?
explain the molecular mechanism of how ATP synthase produces ATP
calculate the crystal field splitting energy in Kj/mol for blue soloution containing the copper complex [Cu(NH3)6]^2. the solution exhibits
A mixture of four gases exerts a total pressure of 860 mm Hg. Gas A and B, both exert 220 mm Hg, Gas C 110 mm Hg. What pressure is exerted by gas D?- When does a real gas behave like an ideal gas?
Determine the boiling point of a solution of 72.4 g of glycerol dissolved in 122.5 g of water.
Sketch a series of titration curves for the titration of a strong acid with a strong base where the concentration of the acid is 10-1, 10-2, and 10-3 mol dm-3 respectively. Explain why the choice of indicators is restricted at different acid conce..
Calculate the vapor pressure of water above a solution prepared by dissolving 26.9 g of glycerin (C3H8O3) in 183 g of water at 343 K. Vapor Pressure (torr) at 343 (or 70) is 233.7 torr
Assuming that all of the gas in a helium tank containing 500g of He is used to fill balloons with an average volume of 2.5L of Helium, approximately how many balloons could be filled at STP
Does 4-Phenylphenol have a monosubstituted aromatic ring ( or also known as monosubstituted aromatic overtone band [msoab] )
Write a chemical reaction demonstrating that SO2 is an acidic oxide. c) Write balanced chemical reactions demonstrating that Al2O3 is amphoteric.
If a 0.10mL volume of oil can spread over a surface of water of about 32.0m^2 area, calculate the thickness of the layer in centimeters. Enter your answer in scientific notation.cm?
a 75.0 ml sample of .0500M HCN is titrated with .500 M NaOH. what is the concentration of H+ in the solution after 3.0 ml of .500 M NaOH has been added
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