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The speed of a certain electron is 995 km s-1. If the uncertainty in its momentum is to be decrease to 0.0010 per cent, Explain what uncertainty in its location must be tolerated?
A new atom is found that has 3 isotopes with masses of 262, 263 and 265. If the first is 0.17 abundant and the second is 0.41 abundant, what is the atomic mass of the element (give your answer to 2 decimal places).
if the pressure of a gas sample is quadrupled and the absolute temperature is doubled by what factor does the volume of
identify the type of reaction..Barium chloride + sulfuric acid ---> Barium sulfate (s) + hyrdochloric acid
An unknown gas is held in 2 separate containers with identical number of moles of gas. The volume of container 2 is 0.347 L and has a pressure of 0.315 atm. The volume of container 1 is 1.145 L. What is the pressure of the unknown gas in container..
For the titration of 25.0 mL of 0.050 M Sn+2 with 0.100 M Fe+3 (using Pt and SCE electrodes), what is the cell potential after the addition of 26.0 mLs of titrant. Eo for Fe+3 /Fe+2 = 0.732V ; Sn+4 /Sn+2 = 0.139V.
The labels of bottles that contain barium hydroxide, hydrochloric acid and sodium carbonate had fallen off. When the contents of the bottle A were mixed with B's Contents, a white precipitate formed, A with C yielded a gas and B with C gave heat.
Determine the final concentration if A 129 mL portion of that solution is diluted using water of 149 mL.
write balanced half-reactions and the overall spontaneous reaction. type your answer using the format nh4 for nh4. use
The unit of S was the J/(mol*K) the book said. But, in delta S, why the unit is J/K? I just think when I want to calculate delta S, sum of products's S - sum of reactants's S, so the unit of delta S is same as S I thought. What is it
A buffer that contains 0.347 M of a base, B and 0.483 M of its conjugate acid BH+, has a pH of 8.08. What is the pH after 0.00713 mol of HCl are added to 0.442 L of the solution
How much energy is released during the complete combustion of 329 grams of cyclobutane ?
EDTA forms strong complexes with most metal ions except those in Group 1A. What information could be obtained if the method of this experiment was used with a solution containing
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