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A compound has a molecular weight of 153.2 and a Henry's constant of 85 atm. What is the concentration of the compound in air in ppmv which is in equilibrium with a 35.0 mg/L aqueous solution?
Write a chemical equation showing how each of the following species can behave as indicated when dis- solved in water. a. HSO3- as an acid b. CO3^2- as a base c. H2PO4- as an acid d. C2H3O2- as a base
when sulfur trioxide gas reacts with water a solution of sulfuric acid forms.express your answer as a balanced chemical
titration of 50 ml sample of acetic acid is performed by dropwise addition of 0.7 m naoh. a total of 11.9 ml of the
When NH3 is prepared from 28 g N2 and excess H2, the theoretical yield of NH3 is 34 g. When this reaction is carried out in a given experiment, only 30. g is produced. What is the percentage yield
Some wastewater has a BOD5 of 150 mg/L at 20 degrees Centigrade. The reaction rate k at that temperature has been determined to be 0.23/day.
when 31g of phosphorus reacts with oxygen, 71g of an oxide phosphorus is the product. What mass of oxygen is needed to produce 13g of this product?
The solubility of PbS in water is 7.0 x 10 ^-29mol/L. Will its solubility increase or decrease in a solution that has a pH of 9.4
a gasous mixture of oxygen and nitrogen contains 32.8% nitrogen by mass. what is the partial pressure of oxygen in the mixture if the total pressure is 405mmHG?
A polyatomic ion containing an unknown element, E, has the chemical formula EO3 with -1 charge, and has 26 total electrons. Provide 3 possible identities of element E
To 1.00 L of a 0.100 M aquoeus solution of the weak base pyridine C5H5N is added 1.00 ml of 14.0 M NaOH. What fraction of the pyridine molecules in the resulting solution react with water to release hydroxide ions? (Kb C5H5N = 1.7 x 10^-9)
How could you convert butanoic acid into the following compounds? Write each step showing the reagents needed. (a) 1-Butanol (b) 1-Bromobutane and (c) Pentanoic acid
Question- it requires 419 kj/mol to ionize potassium atoms from a 0 to a +1 oxidation state. What is the value of n for the electron being removed in this process. Calculate Z for potassium atoms
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