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A solution made by adding 105g of NaCl to 1 kg of water freezes at 20 degrees F (-6.7 degrees Celsius). Calculate the mass of CaCl2 that would lead to the same freezing point depression as 105g of NaCl, when added to 1 kg of water
A gas bottle contains 0.650 mol of gas at 730 mm Hg pressure. If the final pressure is 1.15 atm, how many moles of gas were added to the bottle.
Using Henry's Law to calculate gas solubility If air contains 78% N2 by volume, what is the solubility of N2 in water of 25oC and 1 atm (Henry's constant kH for N2 in H2O at 25oC = 7 x 10-4 mol/L.atm)?
Important information about Hydroboration reaction, In one experiment you combine 1-hexene which is reacted with H2SO4 with water as the solvent and the compound produced is 2-hexanol
Calculate the electrostatic energy of the system and compare this energy to the Hydrogen atom in its ground state.
how many molecules of oxygen gas are needed to react with 4.2 moles of C3H8O?
Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell.
A typical aspirin tablet contains 325 mg of acetylsalicylic acid ( HC9H7O4). Calculate the pH of a solution that is prepared by dissolving five aspirin tablet(s) in one cup (237 mL) of solution. Assume the aspirin tablets are pure acetylsalicylic ..
Addition to double bonds, oxidation of double bonds - Draw the structure/structures for the major organic product/products formed when 1-methylcyclohexene reacts
What is the major product when trans-cinnamaldehyde is reacted with cyclohexanone?
Calculate delta g rxn and e cell for a redox reaction with n=3 that has an equillibrium constant of K
Assuming that the specific heat of water is 4.18 J/(g ? °C), and that the heat absorption by the calorimeter is negligible, estimate the enthalpy of combustion per mole of anthracene
A green leaf has a surface area of 2.00 cm^2. If solar radiation is 1030 W/m^2, how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
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