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What is the kinetic energy of the emitted electrons whencesium is exposed to UV rays of frequency 1.5x10 15 Hz?
Which of the seven cations will be the hardest to detect (same anions as above), Why do you think this? If two or more are possible explain why.
how many ml of concentrated sulfuric acid would be required to mae 1 L of 0.2N solution
The volume of a gas is 93 mL when the temperature is 91 C. if the temperature is reduced to 0 C without changing the pressure, what is the new volume of the gas
Suppose you have 0.001 M solution of a dye with pka of 7.2. from the color, concentration of protonated form is found to be 0.0002 M. Assume remainder of the dye is in the deprotonated form. What is the pH of the solution?
In an electrolysis experiment such as the one you will perform, 1.76 x 10^-3 moles of hydrogen gas were collected, and the metal electrode lost 0.1983 g. The equivalent mass of the metal is approximately what?
Compute the ratio of the concentration of H 2 CO 3 to that of the HCO 3- if The pH of a bicarbonate-carbonic acid buffer is 8.50
Hydronium ion concentration using Henderson-Hasselbalch equation - What is the hydronium ion concentration of a solution
What must the minimum temperature of its energy source be if it is to produce work with an efficiency of 0.75?
A local radio station can be tuned in by dialing your radio to a frequency of 101.5 MHz. Calculate the wavelength. (Hint: MHz means 1 x 106 Hz.)
Was measured at several temperatures and the following data was collected, Using this data, graph ln k 1/T. using your graph determine the value of Ea please show work and show a graph
what is the molar concentration of the salt solution formed in this reaction? 3. what is the molar concentration of the excess reactant once this reaction has finished?
Two unknowns X and Y both having molecular formulas C4H8O, give the following results with four chemical tests. Propose structures for X and Y consistent with this infomation, Bromine Na Metal Chromic Acid Lucas Reagent
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