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Two tiny particles carrying like charges of the same magnitude are 1mm apart. If the electric force on one of them is 5.0N, what is the magnitude of the charge on each of these particles?(k = 1/4πε0 = 9.0 × 109 N · m2/C2)
In a beaker, I mix 50 ml of 3 M HCl with 100 ml distilled water. Both fluids are at 25 C initially. (Cp mix =. 0.985 cal/g-C) a. what is the final T.
Phenol is an enol. in water it wil undergo an enol to a keto tautomerization. Will this reaction likely go by a base or acid catalyzed mechanism? Show the mechanism
Assume you take a sample of 13.6 g Al and oxidize it (in an excess of O2) to produce 12.07 g of Al2O3. Calculate the percent yield of Al2O3. Reaction: 4 Al + 3 O2 → 2 Al2O3.
The technician measures some absorption of 120 MHz radio waves. At what value of x were the hydrogen atoms that absorbed these radio wave photon located?
What mass percent sucrose (C12H22O11)should be present in an aqueous sucrose solution to raise the boiling point to 100.00 degrees celsius at this pressure
You inherit a gold bar that measures 7.0 inches by 3.0 inches by 2.0 inches. How many ounces does the bar weigh?
The concentration of H3O+ ions at the freezing point of water is 3.9 x 10^-8 mol/L. (a) Calculate Kw and pKw at 0.0 degrees C.
Identify the Bronsted-Lowry base for the forward reaction in HCN(aq) + H2PO4-(aq) CN-(aq) + H3PO4(aq) a) HCN b)OH- c)H2PO4- d)CN- e)H3PO4
ammonia nh3 with kb 1.8 x 1005 is added to 100 ml of waterat room temperature and the vapor pressure of water above
a chemistry student needs of 40 ml chloroform for an experiment. by consulting the crc handbook of chemistry and
Calculate the pH of a buffer that is 0.150 M in NaHCO3 and 0.190 M in Na2CO3.
Background: Lake Lianna is fed by two rivers, the Matthew and the Andrew. You have made careful water chemistry measurements throughout the year and found that the two rivers have the following pH and alkalinity
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