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How much more or less rain is the United States experiencing now compared with 100 years ago? What percentage?
100 moles of C4H10 undergoes complete combustion in excess air. First, show the degree of freedom analysis for this process. Then calculate the composition (mole fractions) of the stack gas on a wet basis for the following three cases: (1) theoret..
In Mecca during the recent annual Hajj, carbon monoxide levels in traffic tunnels peaked at 57,400 ppb by volume. Assuming ambient pressure ~ 1.00 atm, and T = 41.5 oC what mass of CO is in 1.00-L of the air, as micrograms?
What could happen if a large housing area built on an unknown hazardous waste site contaminated with ppolychlorinated biphenlys
Express the concentration of a 0/0200 M aqueous solution of fluoride, F-, in a mass percentage and in parts per million. Assume the density of the solution is 1.00 g/ml
If 0.334 g of water was obtained from the equation N*M H2O ?N + M H2O, how many grams of the hydrate were heated
Bessemer converter is used for the manufacture of : Which is the formula of Haematite
What mass percent of ethylene glycol in water must be used to reduce the freezing point of the mixture to -5.0degrees c?
Explain the effect of pH on the aqueous solubility of dissolved organic matter (use the 13C NMR spectra on the International Humic Substances Society as your primary reference). Speculate on how DOM fractionation would change crossing a riverine (..
The mass of silica needed to produce one- 325mg of aspirin tablet. the formulae is C4H6O3 + C7H6O3 --> C9H8O4 + C2H4O2
What is the pH of concentrated sodium hydroxide? NaOH FW=40.0 g/mol
A studet determined the percentage KHP in an impure sample of KHP . a 3.150g sample of impure KHP required 41.50 mL of 0.1352M NaOH solution for titration.1) calculate the number of moles of NaOH required for this titration
a new hydrocarbon with molecular formula C20H14 is obtained in low yield. The 13C NMR of this new product shows three peaks in the 120-150 ppm range and one peak at 54 ppm.
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