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What is the molar mass of a nonelectrolyte compound if 3.42 grams of the compound dissolved in 41.8 grams benzene begins to freeze at 1.17 °C? The freezing point of pure benzene is 5.50 °C and the freezing point depression constant of benzene, Kfp, is -5.12 °C/m.
Write the lewis structure for SeF6. What is the general "ABX" structure, shape name, and molecular polarity?
The solution density = 1.013 g/mL and suppose that the density of pure water =1.00 g/mL. Determine the molality of this solution?
Cyclic Alkyne reaction with KMnO4 and O3, Molecule 1: 5 carbon ring, carbon 1 has a carbon attached which also is triple bonded to another carbon (this end carbon just has a H attached.)
The rate constant for a certain chemical reaction is 0.00250 M1 s1 at 25.0C and 0.0125 M1s1 at 50.0C. What is the activation energy for the reaction, expressed in kJ mol?
Determine how will this error control the final computed percentage of CH3COOH in the vinegar
A zero-order reaction has a constant rate of 3.20×10-4 . If after 60.0 seconds the concentration has dropped to 6.50×10-2 , what was the initial concentration?
If 45.4g of H2O are produced in the reaction given below, the number of grams of magnesium carbonate used is.?
How much ice in grams would have to melt to lower the temperature of 358 g of water from 40 degrees to 0 degrees? (Assume that the density of water is 1.0 (g/ml)
Electromagnetic radiation has an energy of 926 J. The wavelength of this radiation is 856 nm. How many photons are required to generate this energy?
Oxygen gas reacts with powdered aluminum according to the following reaction: 4Al(s) + 3O2 (g) = 2Al2O3(s). How many liters of O2 gas, measured at 779 mm Hg and 30 C, are required to completely react with 2.5 mol of Al?
how many grams of calcium hydroxide will be needed to react with 10.0g of phosphate acid(h3PO4). how many grams of calcium phosphate will form?
What is the magnitude of the electric field amplitude associated with the beam and the corresponding photon density per cm3?
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