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While an ion-selective electrode for X was immersed in 0.0620 M XCl the measured potential was 0.0430 V. Explain what is the concentration of X while the potential is 0.0580 V? Presume that the electrode follows the Nernst equation the temperature is at 25°C, as well as that the activity coefficient of X is 1.
Compute the enthalpy change for the dissolution of ammonium nitrate express your answers in units of kJ/mol.
At its boiling point of 100C, 724 kJ of heat is required to vaporize 321 g of water. What is the molar enthalpy of vaporization of water
A 2.007 g sample of a hydrocarbon is combusted to give 1.389 g of H2O and 6.785 g of CO2. What is the empirical formula of the compound
what does find the saturation have to do with consitutuional,stereoisomers, and conformational isomers?
The half-life of the radioactive isotope bismuth-210 is 5.01 days. How many days will it take for the mass of a sample of bismuth-210 to decay from 56.4 milligrams to 14.1 milligrams
the molecular weight of sodium hydroxide is 40.00. how many grams would you need for 150 ml of a 1mm solution? a buffer
An alkyne of six carbon atoms gives the same single product in its reaction either with BH3 in THF followed by H2O2 /OH-, or with H2O/Hg2 /H3O . Draw the structure of the alkyne (containing only carbon and hydrogen atoms).
a sample of gas at 77 degreees celsius and 1.03 atm occupies a volume of 2.02L. What volume would this gas occupy at 107 degreees celcius and 0.789 atm.
What quantity of heat energy transfer is required to vaporize 0.500 mL of mercury at 357 °C, its normal boiling point? The density of Hg (l ) is 13.6 g/mL.
estimate the enthalpy change for the combustion of hydrogen gas in the presence of oxygen gas.
Show how to produce 2-methoxy-1-butanol from the epoxidation of 1-butene. The reaction was carried out in methanol.
A sample of nitrogen occupies a volume of 250mL at 27 degrees C and 700 mmHg of pressure. What will be its volume at STP?
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