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What is ?E for the transition of an electron from n = 7 to n = 4 in a Bohr hydrogen atom? What is the frequency, of the spectral line produced?
Enter your answer with 4 significant digits.Enter scientific notation as 1.23E4.
What are the precipitation reaction with balanced molecular, total ionic and net ionic equations for na2
has Kp = 45.9 at 763 K. A particular equilibrium mixture at that temperature contains gaseous HI at a partial pressure of 4.00 atm and hydrogen gas at a partial pressure of 0.273 atm. What is the partial pressure of I2?
What biochemical changes are required to convert tyrosine to (a) norepinephrine and (b) epinephrine? and 3- Some bacterial signaling systems involve kinases that transfer a phosphoryl group to a His side chain. Draw the phospho-His side chain.
The reaction of 0.130 moles of a metal with an acidic aqueous solution in a calibrated calorimeter causes the temperature to increase by 49.0°C.
NaOH to achieve a phenolphthalein end point. Express the acidity of the wine in terms of grams of tartaric acid (H2C4H4O6, fw 150.09) per 100 mL of wine.
At 760K, 85% of a sample of cyclopropane changes to propane in 79.0min. Calculate the value of the rate constant for this reaction. All isomerization reactions are first-order.
When the following equation is balanced using the smallest possible integers, what is the exponent of N2O in the reaction quotient expression?
For the reaction represented by the equation Cl2+2KCl+ Br2, how many grams of potassium chloride can be produced from 300. g each of chlorine and potassium bromide.
what is the molality of a solution in which 3.0 moles of NaCl is dissolved i 1.5Kg of water?
Calculate the heat required to convert 25.0 g of C2Cl3F3 from a liquid at 5.00 degress celsius to a gas at 82.00 degrees celsius.
A goose is flying south for the winter at a constant speed. Keep in mind that one mile is 1.61 , and one pound is 454 .The goose has a mass of 20.1
What is the minor product? Explain why the one product is formed preferentially over the other. What reaction conditions can you change to favor the formation of the minor product?
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