How many moles of water molecules are present
A sample of hydrated copper(II) sulfate (CuSO4nH2O) is heated to 150 degrees centigrade and produces103.74 g anhydrous copper (II) sulfate and 58.55g water. How many moles of water molecules are present in 1.0 mol of hydrated copper(II) sulfate?
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The second virial coefficient of methane can be approximated by the empirical equation: B'(T) = a + b*exp(-c/T^2), where a =-0.1993 bar^-1, b = 0.2002 bar^-1, c = 0.1131 K^2 with 300 K < T< 600 K. What is the Boyle temperature of methane?
A sample of neon gas at a pressure of 1.08 atm fills a flask with avolume of 250 mL at a temp of 24.00C. If the gas istransferred to another flask at 37.20C and a pressure of2.25 atm, what is the volume of the new flask?
A chemical is placed in a beaker containing 20g. of soil and500ml of water. At equilibrium, the chemical is found in thesoil at a concentration of 100 mg*kg-1 of soil.
It has been estimated that the concentration of CO2 inthe atmosphere before the industrial revlution was about 275ppm. If the accumulation of CO2 in the atmospherecontinues, then by the middle of the next century it will probablybe around 6
A sample of hydrated copper(II) sulfate (CuSO4nH2O) is heated to 150 degrees centigrade and produces103.74 g anhydrous copper (II) sulfate and 58.55g water.
Given that the world's oceans contains 1.35 x10^9 km^3 of water, determine the mass in grams.. show how to obtain converstion factors from km^3 to m^3, and from m^3 to cm^3. Use 1.03 g/cm^3 as the density of sea water.
Lakes in the Adirondack mountains of New York state areparticularly susceptable to acid rain. One strategy that has been suggested to overcome the acidification of these lakes is to peridocally add limestone (CaCO3).
A man in a bosun chair dangles from a massless rope, which runs over a massless, frictionless pulley and back down to the man's hand. Combined mass of the man and chair is 95.0 kg.
Zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas. How many milliters of 3.00m HCI are required to react with 12.35 g of zinc?
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