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KHC8H4O4 is used to standardize solutions. The acidic anion reacts with strong bases according to the following net ionic equation HC8H4O4-(aq) + OH- (aq)--->C8H4O4-2(aq) + H2O(l) If a 0.902g sample of KHC8H4O4 is dissolved n water and titrated to the equivalence point, with 26.45 mL of NaOH, what is the molar concentration of the NaOH
A gas occupies a volume of 380. ml at 135 °C? At what temperature will the volume of the gas be equal to 535 ml?
A piston has an external pressure of 11.0 rm atm. How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.460 liters.
How many collisions does a single Ar atom make in 1.0 s when the temperature is 25 C and the pressure is (a) 10 bar, (b) 100 kPa, (c) 1.0 Pa
Suppose the calorimeter for this experiment had been made of a heat-conducting material (such as metal) rather than plastic foam, so that the portion of heat energy lost to the calorimeter itself was larger and could not be ignored
C2H6, is completely combusted in oxygen. If the total mass of CO2 produced is 34.8 grams, what was the approximate mass of the methane in the original mixture?
What would be the best indicator for the titration of 0.20 M CH3COOH titrated with 0.2 M NaOH? (Ka for acetic acid = 1.8 X 10-5) The pH ranges for the color change of some common acid base indicators are given below
how many grams of mercury (II) oxide are needed to create 28.9 grams of oxygen gas?
Soft drinks are bottled under CO2 pressure of 4.0 atm. The solubility of CO2 at 4.0 atm is 0.71g/100g H2O. What is its solubility after the bottle is opened if the partial pressure of CO2 is 4.0e-4 atm
During ther processing of black-and-white film, excess silver (I) halides are removed by wadhing the film in a bath containing sodium thiosulfate. This treatment is based on the followig complexation reaction:
Select the more polar bond in each of the following pairs: a) C-C or C-O; b) P-Cl or P-Br; c) Si-S or Si-Cl; d) F-Cl or F-Br; e) P-O or P-S.
The following data apply to 25oC and 100kPa. Assume the specific volume Vs, and Kt are constant with respect to pressure changes. delta G(graph) = 0
The concentration of K+ in blood plasma is about 0.0050 M. The high internal concentration in cells is maintained by pumping K+ from the plasma. How much work must be done to transport 1.0 mol K+ from the blood to the inside of a muscle cell at 37..
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