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The Kb for an amine is 6.5x10-5. Explain what percentage of the amine are protons red if the pH of a solution of the amine is 9.725? Presume that all OH- came from the reaction of B with H2O)
hydrogen and oxygen react under a specific set of conditions to produce water according to the following equation.2 h2g
Write a balanced half-reaction for the oxidation of chromium ion (Cr^3+) to dichromate ion (Cr2O7^2) in acidic aqueous solution. Be sure to add physical state symbols where appropriate
determine the molarity of a solution formed by dissolving 15.79 grams of cacl2 calcium chloride in 200.grams of h2o
A solution of water at 30 degrees Celsius is placed in a freezer at a constant temperature of -8 degrees Celsius. Calculate the entropy change of the system, surroundings, and the universe.
Consider the ring structure of beta-D-glucose. It will give a positive test as a reducing sugar. How can that happen?
What is the calculated mass of K4Fe(CN)63h2o needed to prepare 100.00ml of .0250M solution. I just need help with the whole thing including units and significant figures.
How many seconds would it take to deposit 0.500 g of Ni metal on an electrode by passing a 3.00 amp current through a solution of Ni2+
The fact that boiling point of a pure solvent is lower than the boiling point of a solution of the same solvent is a direct consequence of the. freezing-point depression of the solution.
how much of a 50 acid solution should be added to 40 gallons of a 25 acid solution to make a mixture that is 30
Calculate the minimum number of grams of solid that must be combusted to provide the energy necessary to convert 2.50kg of from its solid form at -14.0 C to its liquid form at 60.0 C .
An industrial flavor-enhancing process requires that a butter-flavored food be heated briefly at 200 degrees Celsius. Explain how long can the food be heated at this temperature and retain 68% of its butter flavor?
a 20 ml solution of ti2 40 mm can be oxidized by reacting with iron ions from fecl3. a titration is performed with a
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