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Boron trifluoride gas is collected at-5.0°Cin an evacuated flask with a measured volume of20.0L. When all the gas has been collected, the pressure in the flask is measured to be0.360atm.
Calculate the mass and number of moles of boron trifluoride gas that were collected. Be sure your answer has the correct number of significant digits.
it was determined in a calorimetry experiment that a piece of copper metal of 92.0 gram released 1860 joules of heat to
Manganese dioxide reacts with hydrochloric acid as shown in the chemical equation MnO2(s) + 4HCl(aq)-->MnCl2O(l) + Cl2(g) What is the percent yield of the reaction if 5.75 g of H20 is obtained when 28g of MnO2 and 28g of HCl are mixed and allowed ..
What is the difference between alpha-glucose and beta-glucose? and show the condensation of two glucose molecules to form a disaccharide with an alpha linkage; with a beta linkage.
Calculate Ecell and determine if the permanganate ion, MnO4-, oxidize Fe^2+ to Fe^3+ at 25 degrees Celsius under the following conditions: Mn^2+=1x10^-7 M, MnO4^-1=.01M, Fe^2+=1x10^-4 M, Fe^3+=1x10^-7 M, and PH =5.0.
What would be the potential in volts of a standard hydrogen (S.H.E.) electrode under the following conditions?:
Calculate the solubility (in mol/L) of Fe(OH)3 (Ksp = 4.0 x 10^-38) in each of the following situations: (A) Pure water (assume that the pH is 7.0 and remains constant). (B) A solution buffered at pH = 5.0. (C) A solution buffered at pH = 11.0.
What is the pH of the solution created by combining 2.00 mL of the 0.10 M base with 8.00 mL of the 0.10 M acid
Using your knowledge of metric units, English units, and the information on the back inside cover, write down the conversion factors needed to convert
Can any gate voltage of the opposite sign to (b) be applied to the gate without producing expression gate current? What is its effect on W depand Ids?
Problem- The relationship between the change in free energy and the emf of an electrochemical cell is given by: A) G= -nF/E, B) G= -E/nF, C) G= -nF E, D) G= -nRTF, F) G= -nF/ERT
For the endothermic equilibrium CaCO3(s) + NH4+(aq) + SO42+(aq) -> CaSO4(s) + NH3(g) + HCO3-(aq), explain the best set of changes to apply in order to increase product yield effectively.
Presuming that all of the heat evolved in burning 11.88 grams of pentane is transferred to 7.91 kilograms of water specific heat = 4.184 J g-1 degC-1 primarily at 23.4 degrees Celsius compute the increase in temperature of the water.
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