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Explain a solution is prepared by dissolving 89.6g of a nonvolatile solute in 175 g of water. Explain the vapor pressure above the solution is 20.62Torr as well as the vapor pressure of pure water is 23.76Torr at this temperature. Explain what is the molecular weight?
What volume of ammonia at 25 °C and 1.5 atm pressure is needed to produce 500 g of urea?
Explain how does adding a small amount of a girgnard reagent solution to a Girgnard reaction help the reaction get started. Explain the presence of water is a major reason a Grignard might not start.
The two products formed are 2-methyl-1-hexene (19%) and 2-methyl-2-hexene (81%). Show the chemical equation for this reaction. Explain fully why 2-methyl-2-hexene is the major product.
If the mass of an empty weighing jar is 23.4568 g and the mass of the jar with the metal inside is 36.8320 g, and the volume in the graduated cylinder increases from 5.70 mL to 12.30 mL, calculate the density with uncertainty. The uncertainty for ..
Assume 40 g of solid (NH4)2Fe(SO4)2 * 6H20 was used in 1 l of solution to create the solution tested. What is the theoretical % Fe in a pure sample. Assume that the molecular wt = 392.15 g/mole.
Here are some data collected on a sample of cesium exposed to various energies of light. Light energy ({\rm eV}) Electron emitted. Electron KE ({\rm eV}) 3.87 no - 3.88 no - 3.89 yes 0 3.90 yes 0.01 3.91 yes 0.02 Part A What is the threshold frequ..
The resulting W3 was transferred to 500.0 mL of 1.00 M HCl. A 100.00 mL aliquot of the HCl solution required 10.13 mL of 0.08840 M potassium permanganate (KMnO4) to reach the purple endpoint
Pressure in a manometer, A manometer consists of a U-shaped tube containing a liquid. One side is connected to the apparatus and the other is open to the atmosphere
Describe a non-chemical application of Le Chatelier's principle. What is the system in equilibrium. What is the stress. How does the system respond.
find the empirical formula for the following compounds given the following information.find the empirical formula for
What will be the final temperature of a mixture made from equal masses of water at 24.1 C, ethanol at 37.3 C, and iron at 93.3 C? The specific heat capacities of each are: 0.449J/g C (Fe), 4.18J/g C(Water), and 2.42 J/g C (ethanol).
The Ksp of lead(II) hydroxide, Pb(OH)2, is 1.43 × 10-20. Calculate the molar solubility of this compound.
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