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Suppose two soap bubbles, one smaller than the other, are each attached to ends of glass tubes as well as the tubes are connected via a stopcock. While the stopcock is opened, will the bubbles change in size, and if so, which will grow? Explain why
Calculate the equilibrium constant for the chemical system described by the following chemical equation: 4 Al (s) + 6 Ni2+ (aq) 4 Al3+(aq) + 6 Ni(s) The 2+ and 3+ indicate charge. How do you calculate the Keq
a calorimeter contains 25.0 grams of water at the temperature of fifteen degree celsius . when 2.10 grams of a
The cell potential was measured to be 0.06800 V at 25 °C. By use of the Nernst equation, determine the concentration (M) of Pb2+ in the solution of Cell A.
A buffer (pH 3.70) was prepared by mixing 1.00 mole of formic acid and 1.00 mole of sodium formate to form an aqueous solution with a total volume of 1.00 L. To 400 mL of this solution was added 50.0 mL of 1.00 M NaOH. What is the pH of this solut..
A certain reaction has Delta H= -19.5 kJ and delta S= +42.7kJ. Caculate Delta G for the reaction at 25 degrees C. Is the reaction spontaneous at 25C
how many moles of bcl3 are needed to produce 25.0 g of hclaq in the following reaction?bcl3g 3 h2ol rarr 3 hclaq
Draw the skeletal structure of the major organic product formed inthe reaction below when the second step is heated to reflux.
What is the pH at the equivalence point when a 1.24 gram sample of C6H5COOH (Ka=6.6X10^-5, MM=121) are titrated with 0.180M LiOH? First find the volume of LiOH required to neutralize the acid and then assume that this volume is the volum of the so..
Compute the density of both an ideal as well as a hard sphere gas with molar mass 30 grams/mole that has a b parameter of 0.037 L/mol. The pressure is 1000atm and the temperature is 50 K.
Calculate the potential delivered by a voltaic cell operating by the following reaction if all of the dissolved species have a concentration of 0.035 and the pressure of H2 (g) is 1.00 atm.
What is the ratio of the conjugate base concentration to the acid concentration, that is, [B- ]/[HB] when the indicator switches to the acidic color
Given 100 g of hot tea at 90 C what mass of ice at -10 C must be added in order to obtain a final temperture of 10 C
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