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Calculate the energy levels of the π-netwrok in octatetraene, C8H10, using the particle in the box model. To, calculate the box length, assume that the molecule is linear and use the values 135 and 154 pm for C=C and C-C bonds. What is the wavelength of light required to induce a transition from the ground state to the first excited state?
What is the ph of the solution obtained by mixing 30.00mL of 0.250 M HCl and 30.00 mL of 0.125 M NaOH?
2C4H10 + 13O2 → 8CO2 + 10H2O The equation shows the combustion of butane (C4H10). How many moles of water can be produced by 12.5 moles of C4H10 with excess oxygen.
Enter the sign of H° and S° for the condensation for CO2. Enter the sign as either + or -. Also indicate the temperature conditions (high temperature or low temperature) that favor condensation of CO2
determine K for this reaction When a sample of 5.63 grams of pure C 5 H 6 O 3 (g) was sealed into an otherwise empty flask of 2.50 L and heated to 200.
When 2.00 moles of H2O react, how many grams of NH3 are produced?
If 50.0 ml of the solution prepared in 6 is reacted with an excess of sodium chloride, how many grams of silver chloride should be produced.
A 0.5485 g solid mixture have only ferrous chloride hexahydrate and ferrous ammonium sulfate hexahydrate. dissolved in 1M sulphuric acid get oxidized to Fe3+ with hydrogen peroxide, and get precipitated with cupferron.
The element lanthanum has two stable isotopes, lanthanum-138 with an atomic mass of 137.9 amu and lanthanum-139 with an atomic mass of 138.9 amu
Compute the change in entropy of the universe if water vapor of one mol condenses to liquid water at the temperature of 100°C in a thin flask in an ambient laboratory temperature of twenty five degree celsius.
What volume of .305M AgNO3 is required to react exactly with 155mL of .274M Na2SO4 solution
A 122 piece of metal is heated to 285 and dropped into 84.0 of water at 26. If the final temperature of the water and metal is 58.3, what is the specific heat of the metal.
Determine the molarity of a solution made by dissolving 20.0 g of NaOH in sufficient water to yield 436 mL of solution.
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