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Verify the following statements (a) One part per million corresponds to one minute in two years, or a single penny in $10,000. (b) One part per billion corresponds to one minute in 2000 years, or a single penny in $10 million
At room temperature, the equilibrium constant, Keq is approximately 3. Calculate the number of moles of reactants and products expected in the equilibrium mixture of this reaction
You are the chief environmental officer of an industrial operation of your choosing. Describe your operation, its different components or stages, the materials used and the type of wastes generated.
water's heat of fusion is 80 cal/g and is specific heat is 1.0 cal/g degree celcius. Some velmobile set have been designed to hold ice packs inside their cushions.
Calculate the solubility of silver chloride in a solution that is .100 M in NH3. Ksp for AgCl = 1.77x10^-10. Kf for Ag(NH3)2+ = 1.7x10^7
Calculate the minimum energy a photon must have to produce an electron hole pair in an extrinsic semiconductor of band gap 1.0 electron volts.
A calibrated flask was filled to the 25 mL mark with ethyl alcohol. By weighing the flask before and after adding the ethyl alcohol, it was determined that the flask contained 19.7325 g of alcohol.
a particle moving 30,816 km/hr has a wavelength of 725 nm. What is the mass of the particle?
what is the volume change when 2 kg of water at 6.8 MPa and 93 Celsius expands to 1.6 bar
What is the vapor pressure (in mm Hg}) of a solution of 15.5g of glucose in 82.0g of methanol at 27 degrees C? The vapor pressure of pure methanol at 27 degrees C is 140 mm Hg.
if you burn 51.8 g of hydrogen and produce 463g of water, how much oxygen reacted?
Explain the Reaction, If you treat an aldehyde wiith HCN you produce a cyanohydrin. For example
A 100.-L flask contains a mixture of methane (CH4) and argon at 25C. The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650.
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