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What is a rarefaction? Which is longer, the wavelength of infrasound or the wavelength of ultrasound?What is the chief physical property that describes
(a) pitch,
(b) loudness, and
(c) quality?
The melting point of sodium is 98 degrees celcius. How much heat is absorbed by sodium when 800 grams os solid sodium metal become liquid at 98 degrees celcius?
you want to make an acetic acidacetate buffer ph 5.6 with avolume of 250 ml and a final concentration of acoh aco- 0.1
Calculate the height of a column of liquid benzene (d= 0.879 g/cm3), in meters, required to exert a pressure of 0.970 atm.
empirical and molecular formula what are both the empirical and the molecular formula for the compounds described
If we build a reactor and run it under these conditions, could we ever get a lower conversion (less hydrogen) than that calculated in part (a)? Can we ever get a higher conversion? Explain.
solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. Write a balanced chemical equation for this reaction.
Calculate [Ag+] present in a solution at equilibrium when concentrated NH3 is added to a 0.01M solution of AgNO3 to give an equilibrium concentration of [NH3] = 0.2M.
Hexacoordinate Fe (II) in heme is bright red. Pentacoordinate Fe (II) is blue. Define how these electronic changes account for the difference in colors of arterial and venous blood
A buffer solution contains 0.10 mol of acetic acid and 0.13 mol of sodium acetate in 1.00 L. What is the pH of this buffer
Explain the amount of heat in kilojoules needed to convert 255.0 grams of ice at -15.2C to liquid water at 35.6C the specific heat of ice is 2.03J/gC. The molar of fusion of ice is 6010 J/mol. The specific heat if water is 4.184 J/g C
What are some of the general properties that distinguish metals
Assuming 100% yield, calculate the final concentrations of reactants and products. Calculate the pH of the final solution
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