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Calculate the vapor pressure of a solution containing 27.2g of glycerin in 134ml of water at 30.0 C. The vapor pressure of pure water at this temperature is 31.8torr . Assume that glycerin is not volatile and dissolves molecularly (i.e., it is not ionic) and use a density of 1.00g/ml for the water.
An unknown compound contains only carbon, hydrogen, and oxygen (C_x,H_y,O_z). Combustion of 4.50 g of this compound produced 6.60 of carbon dioxide and 2.70 of water. How many moles of carbon,C , were in the original sample
calculate the value of kc for the following reaction at 700 c. analysis atnbspequilibrium showed that there are 2.50
In a purity check for industrial diamonds, a 11.25 carat (1 carat = 0.2000 g) diamond is heated to 74.21°C and immersed in 27.30 g of water in a constant-pressure calorimeter
Consider the electronic transition from n = 4 to n = 1 in a hydrogen atom, and select the correct statement below.
What is the label for the orbital shown here that indicates the type of orbital and its orientation in space
The boiling point of propylamine, CH3CH2CH2NH3, is 48 °C while that for its isomer trimethylamine, (CH3)3N, is only 3 °C. Explain the difference on the basis of the intermolecular forces
the solubility product constant for mgf2 is 6.4 times 10-9. how many grams of mgf2 will dissolve in 150 ml of h2o at
calculate the root mean square speed and its average kinetic energy per molecule of nitrogen and water vapor.a
a bottle containing 315 g of cleaning solution is used for carpets. if the cleaning solution has a specific gravity of
Ultra-high-vacuum experiments are routinely performed at a total pressure of 1.0 x 10-10 torr. Calculate the mean free path of N2 molecules and the binary number of collisions, Z11, of N2 molecules (per liter per second) at 350 K under these condi..
If 1L of .100M acetic acid is at equilibrium, how will the following change affect the equilibrium concentration of H+. The solution is diluted by a factor of 3.
A 1-in. thick steel plate measuring 10 in. in diameter is heated from below by a hot plate, its upper surface exposed to air at 80oF. The heat-transfer coefficient on the upper surface is 5 Btu/h ftoF and k for steel is 25 Btu/h ftoF.
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