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Adding 0.1 mol of glucose to 1 L of water elevated the boilingpoint by 0.2 K. What will be the boiling point elevation afteradding 0.1 mol of table salt (NaCl) to 1 L of water?
Calculate the change in Gibbs free energy when 1 mol of ethanol is transferred from an aqueous solution with concentration 0.01 M to an aqueous solution with concentration 0.1 M. Describe your assu
When the perturbation is V(x) = -ε sin ((3πx)/L) and n = 1. Determine the first-order correction to the energy of an electron in a one-dimensional nanoparticle modeled as a particle in a
Determine the molecular mass of the protein ? 14.0 mg of a certain protein was dissolved in the water to make a solution of 4.50 mL at 21.0 o C if the osmotic pressure is 1.25 torr.
The combustion of hydrogen-oxygen mixtures is used to produce very high temperatures required for certain types of welding. Compute the reaction to be
Determine the maximum wavelength of light that will still break these molecules apart. It requires 496.0 kJ/mol to break O2 molecules into atoms.
Discuss what problem will ensue if the level of the developing liquid is higher than applied spot in a TLC analysis? Discuss what will be the result of applying too much compound to a TLC plate?
Determine the maximum number of Cs+ ions that can be formed per joule of energy absorbed by a sample of gaseous Cs atoms?
Determine the pH and the concentrations of bicarbonate, carbonate and the carbonic acid after 10.00mL of 0.100F nitric acid are added to the original solution.
Determine the volume of 1.24 M sulfuric acid determine the volume of 1.24 M sulfuric acid in milliliters that is needed to completely neutralize 40.00 ml of 1.60 M sodium hydroxide.
At a temperature of 30°C a sample of carbon monoxide was prepared and collected over water a total pressure of 758 torr. It occupied a volume of 262 mL.
Compute a system of two oppositely charged the sphere hanging by strings and separated by a distance r 1 as shown in the accompanying illustration.
A mixture of 3.00 moles of nitrogen and 5.00 moles of neon occupy a volume of 36.0 liters in a vessel where the total pressure is 6.00 atm. Determine the partial pressure of the neon in the contain
An "ice calorimeter" can be used to calculate the specific heat of a metal. A piece of hot metal is dropped onto a weighed quantity of ice. The energy transferred from the metal to the ice can be me
Morphine has the formulaC17H19NO3. It is a base and accepts one proton per molecule. It is isolated from opium. A 0.682g sample of opium is found to need 8.92 mL of a 0.0116Msolution of sulfuric ac
A solution is prepared by dissolving the 0.10 mol of acetic acid and 0.10 mol of ammonium chloride in the enough water to make 1.0 L of solution. Determine the concentration of ammonia in the
Calculate the percent composition of copper sulfide? Provide the percentages for both sulfur and copper. Determine the empirical formula of copper sulfide?
If 56.2 mL of BaCl2 solution is required to precipitate the entire sulfate ion in a 748 mg sample of Na2SO4, describe the molarity of the solution?
In what principle quantum level did the electron begin when an excited hydrogen atom emits the light with a frequency of 1.14 x1014 Hz to reach the energy level for which n= 4.
If a pure R isomer has a specific rotation of -114, and a sample contains 63% of the R isomer and 37% of its enantiomer, describe the specific rotation of the mixture.
Determine the p-factor of each ion in a solution that is 2.00x 10^-3 M in NaCl and 5.4 x 10^-4 M in Hcl. Kw=1x 10^ -14 Determine the molar concentration of Ag+ in a solution that has a p-Ag of 6.372?
Suppose you are given a 0.500M sodium acetate solution and a 0.700M acetic acid solution. Calculate the volumes of each solution needed to prepare 160ml of a buffer with pH 4.65.
5.0x10-3 mol CO2 is introduced into a 1.0 L at 2000 deg C container and the following reaction comes to equilibrium:
Metal hydrides react with the water to form hydrogen gas and the metalhydroxide. For example, Determine the maximum mass of hydrogen gas that can be prepared from the 50.0 g SrH2 and 48.0 g H2O?
Adiabatic expansion against zero external pressure. Determine the final temperature in two ways: (a) assuming argon is an ideal gas, (b)assuming argon is a van der Waals gas.