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Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 203.00 pm What wavelength of light would have sufficient energy to ionize the atom?
Compute the amount of heat essential to fully sublime ninety grams of solid dry ice (CO 2 ) at its temperature of sublimation if it is given that the heat of sublimation for CO 2 = 32.3 kj/mol express your answers in kilojoules?
The most two most abundant elements in the crust are oxygen (4.55 X 10^5 g/t, where t stands for metric ton; 1 t=1000kg) and silicon (2.72 X 10^5 g/t), and the two rarest non radioactive elements are ruthenium and rhodium, each with an abundance o..
Oxalic acid, H2C2O4 has acid dissociation constants Ka1=5.9x10^-2 and Ka2=6.4x10^-5. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2C2O4
At a certain temperature, the solubility of potassium iodate, KIO3, is 41.1 g/L. Calculate its solubility product constant for this temperature.
why do we use water as diluent in preparing control and blank samples? are there any better blank sample than water?
The oxidation of 748g of ammonium with 740g of Oxygen produces water and nitrogenoxide. Draw a chemical spread sheet to show what happens during a chemical reaction.
Write the chain propagation steps for the formation of dichloromethane in the chlorination of methane
After adding the two portions into the calorimeter setup and following the procedure outlined in the experiment, you determine the temperature of the mixed portions of water to be 45*C. what is the heat capacity of the calorimeter?
oxygen gas is contained in a 30.0 l tank at a pressure of 4.07 atm. the tank is connected by tubing to a second empty
For each reaction, calculate the mass (in grams) of the product formed when 10.1g of the underlined reactant completely reacts. Assume that there is more than enough of the other reactant.
A sample of oxygen gas has a volume of 131 L at 25°C and a pressure of 0.982 atm. Calculate the volume of this oxygen sample at STP.
Given: Volume of He sample = 72.5mL Temperature = 30 C Atmospheric pressure = 785 mmHg Equilibrium vapor pressure of water at 30 C = 31.88 mmHg What is the ratio of average molecular velocity between He(g) and H2O(g)
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