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Anaerobic digesters are commonly used for processing sludge in wastewater treatment. They are generally operated at a temperature of 35°C with a 1000 m3¬¬ relief chamber at a pressure of 3 atm. If the gas composition is 65% methane (CH4) by volume and 35% carbon dioxide (CO2) by volume, what mass, in kg, of each compound would be held within the container just at the release pressure
What each test reveals about an unknown halide ion? Suggest another test which would confirm that identity. 1.Addition of Cl2 and CH2Cl2 to an aqueous solution of an unknown halide ion led to a dark CH2Cl2 layer.
Suppose that an atmospheric chemist combines 165 of methane at STP, 870 of oxygen at STP, and 56.5 of at STP in a 1.8 flask.
Write a reaction for the formation of a peptide bond between alanine and serine. React the amino group of alanine with carboxyl group of serine. Remember that there are 2 products in this reaction.
A scientist wants to make a solution of sodium phonsphate for a lab experiment. How many grams of sodium phosphate will be needed to produce 475 ml of solution that has a concentration of Na+ ions of 1.50 M?
Write a complete ionic equation and if there is a phase change you need to then write a net ionic equation and list the spectator ions sodium nitrate plus strontium chlorate equals sodium chlorate plus strontium nitrate
Kr (g) in a 18.5 L cylinder exerts a pressure of 11.2 atm at 28.2 °C. How many grams of gas are present
Calculate the heats of combustion for the following reactions from the standard enthalpies of formation listed in Appendix 3. (?H°f (HgO(s)) = -90.7 kJ/mol and ?H°f (FeO(s)) = -272 kJ/mol.)
what differences in product distribution would be expected for the elimination reactions of 2-bromo-2-methylbutane and 2-bromo-2,3-methylbutane wit hexcess potassium hydroxide in ethanol?
tripling the concentration of A increases the rate by a factor of 27, doubling the concentration of B has no effect on the rate, and tripling the concentration of C increases the rate by a factor of 3. Write down the rate law for this reaction.
what is the percent yield of CCl4 if 719 kg is produces from the reaction of 410. kg of CS2
A 39.0 mL solution of 0.500 M Cd(NO3)2 is prepared. What mass of NaOH is needed to precipitate the Cd2+ ions from this solution?
When gaseous nitrogen,hydrogen & ammonia are mixedin a closed vessel at room temperature no apparent change in the concetrations of regardless of the original amount of gases.
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