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1. What volume of nitric acid solution with mass fraction of 16% is required to make make 250ml solution with 0.2mole/l?
If a molecule having an ionization energy of 11.39 eV produces a photoelectron having a kinetic energy of 6.85656E-19 J, what is the wavelength of the incident radiation
what are the balanced molecular equations for all of the chemical reactions involved in the copper cycle experiment? There are eight of them.
Describe the reactions and specific interactions (intermolecular forces ) that make p-tert-butylphenol soluble in NaOH , but not aqueous HCL. Draw a picture of the molecules that shows the important interactions
a hospital needs 1 millicurie of a radioactive pharmaceutical with a half-life of 12 hours. if delivery time takes 3
A bottle is labeled "Constant-boiling hydrochloric acid, 21.0 percent HCl by mass, density 1.1 g/mL." Calculate the molarity of the HCl solution.
a 75 ml sample of .05 molarity hcn ka 6.2x10-10 is titrated with .5 molarity naoh. what volume of .5 molarity naoh is
Consider the following liquids with similar molar masses. Predict which has the strongest intermolecular attraction based only on vapor pressure data.
What is the longest wavelength of light that can be emitted by a hydrogen atom that has an initial configuration of 7p1? Give your answer accurate to three significant figures
What is the pH of the solution at the cathode if E^o cell = -0.362V for the following electrochemical cell at 25 degrees C? Pt | Hw(g,1.0 atm) | H+(aq, 1.00M) || H+(aq) | H2(g,1.0atm) | Pt
A sample of K2S contains 1.35 g of potassium. How many moles of potassium sulfide are present in the sample
Question- An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of 11.8°. If it is known that the specific rotation of the R enantiomer is -30.8°,
The two half-cells are connected by a salt bridge. Aluminum metal is oxidized during operation of the voltaic cell. What is the half-reaction that occurs at the cathode
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