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An environmental chemist sampling industrial exhaust gases from a coal-burning plant collects a CO2-SO2-H2O mixture in a 21-L steel tank until the pressure reaches 850 torr at 45oC.
a) How many moles of gas are collected?
b) If the SO2 concentration in the mixture is 7.95 x 103 parts per million by volume (ppvm), what is its partial pressure?
a sample of sodium hydrogencarbonate, NaHCO3 is contaminated with 5-10% NaCl. How should i carry out an experiment to determine the percentage purity of NaHCO3 ?
Explain the order of elution you would observe while performing gas chromatography during an elimination/dehydration process on 2-butanol.
Calculate the average speed of a gas that has a molar mass of 2.08 × 10-2 kg /?mol at a temperature of 22°C. The value for the gas constant, R, is 8.314 J /?mol K.
CaH2(s) + 2H2O(l) Ca(OH)2(aq) + 2H2(g) How many grams of CaH2 (Molar Mass = 42.1 g/mol)are needed to generate 10.0 L of H2 gas if the pressure of H2 is 769 torr at 28.0°C?
The following lab requires water free conditions as well as reflux for reaction to be successful. Draw a schematic and label your reaction set up
Methanol is toxic for humans if they ingest liquid methanol or inhale methanol vapor in significant quantities. When inhaled in concentration greater than 1000 ppm, death has been reported.
what is the dosage of quinine when a 170lb adult takes a 400.0 mgtablet? Express in ug quinine per kg of body weight.
A second 5.0 mL aliquot of river water was taken, 5.0 mL of reagent, and 5.0 mL of 1.0 ppm SDS were mixed and extracted in 20 mL chloroform and the absorbance of the chloroform layer was found to be 0.286. What is the concentration of SDS?
The Reaction A->B+C is second order in A. When [A]0=0.100 M, the reaction is 20% complete in 53.7 minutes. calculate the value of the rate constant( in L/min mol)
EXPLAIN why at low temperatures, e.g. -80 °C, when HCl is added to 1,3-butadiene the major product is 3-chloro-1-butene. c) EXPLAIN why at +80 °C when HCl is added to 1,3-butediene the major product is 1-chloro-2-butene.
if the freezing point of a .106 m CH3COOH solution is -.288 degrees celsius, calculate the percent of the acid that has undergone ionization?
draw the stuuctural formula of your drug C13 H21 NO3 albuterol. Highlight any regions of your drug that are nonpolar
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