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A river water has a total inorganic carbon of 7.9 x 10-4M at pH 7.9. If the trout population of the river is to be maintained, the river pH cannot fall below pH 7.5. (a) What is the alkalinity of the river? (b) What concentration of acid, for example, HCl, would result in a pH of 7.5?
The solution was acidified and treated with thioacetamide until no further change occurred. Calculate the Cu2+ and Fe2+ concentrations in the resulting solution. Ksp CuS=8.5x10^-36, Ksp FeS=3.7x10^-19
If 12.6 grams of iron (III) oxide reacts with 9.65 grams of carbon monoxide to produce 7.23 g of pure iron, what are the theoretical yield and percent yield of this reaction?
Draw the lewis structure of CH3NCS including all resonance forms. Assign formal charges.
what is the partial pressure of helium? If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial pressure of argon?
1500 g of frozen water at 0 degrees celsius and the temperature of the water at the end was 32 degrees celcius. how many calories of heat energy were absorbed.
An experiment identical to the one you just preformed is done by another student.except the amperage is continuously increased while the sulfuric acid concentration is kept constant
Calculate the composition of the exhaust gases in kg/hr and calculate the percentage of benzene that is partially combusted.
An increase in the temperature of the reactants causes an increase in the rate of reaction. The best explanation for this behavior is that as the temperature increases
Calculate the number of O2 molecules it would take to consume 596 molecules of CS2.
Find the de Broglie wavelength of an electron whose speed is 2 x 10^7 m/s. How significant are the wave properties of such an electron likely
How much heat energy, in kilojoules, is required to convert 65.0g of ice at 18.0 degrees celcius to water at 25.0 degrees celcius.
What causes the heating that is seen in the thermosphere? What causes the heating that is seen in the stratosphere? What is the biological importance of ozone in the stratosphere?
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