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German physicist Werner Heisenberg related the uncertainty of an object\'s position (?x) to the uncertainty in its velocity ?v.The mass of an electron is 9.11× 10-31 kg. What is the uncertainty in the position of an electron moving at 1.00 × 106 m/s with an uncertainty of ?v = 0.01 × 106 m/s?
Identify three radioactive elements or reactions of different types and write the nuclear reaction for each element.
Consider the galvanic cell with Sn2+/Sn and Ag+/Ag both prepared with NO3- as their anion and all solutions prepared at 1.0 M. What is the overall reaction and what is the oxidation half-reaction? Does it occur at the anode or cathode
During the discharge of an alkaline battery, 4.30 g of Zn are consumed at the anode of the battery. What mass of MnO_2 is reduced at the cathode during this discharge? (in g) also How many coulombs of electrical charge are transferred from Zn to M..
In a flame test in the lab, the compound Barium Chloride and Barium nitrate have ions, what are the cations and anions for both.
Calculate the number of moles and the number of grams of the indicated solutes present in each of the following solution samples.
what is the pH of laundry water in your washing machine that contains 0.5 mg/L of bleach (hypochlorous acid, HOCl).
Bacteriorhodopsin is a protein found in Halobacterium halobium that converts light energy into a transmembrane proton gradient that is used for ATP synthesis
Using the henderson hasselbach equation if [H+] =1.55x10^-4 and the ratio [A-]/[HA] = 0.52, what is the Ka of the solution? Is this consided to be a strong or weak acid?
Calculate the pH of a buffer made with 0.50M phosphoric acid and 0.75M sodium dihydrogenphosphate. Ka = 7.5 x 10-3.
The following reaction is exothermic (H= -226 kJ) and has a rate law: Rate = k(NO2)^2: NO2 + CO ? NO (g) + CO2 (g) for each of the following disturbances, indicate whether the rate of the reaction will be FASTER or SLOWER and indicate whether ther..
Water supply in a city is fluoridated by adding NaF. The preferred concentration of F- is 1.6ppm.calculate the amount of Naf in milligrams should be added per gallon (treated water) if the water supply is 0.2 ppm in F-?
A student wanted to determine the molar concentration of acetic acid in a commercial vinegar sample. He used a volumetric pipet to deliver 3.00 mL of vinegar to an Erlenmeyer flask, added about 30 mL of water and 3 drops of phenolphthalein indicat..
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