Calculate the standard emf of a cell
Calculate the standard emf of a cell that uses the Mg/Mg^2+ and Cu/Cu^2+ half-cell reactions at 25 degrees celsius. Write the equation for the cell reaction that occurs under standard-state conditions.
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The vapor pressure of chlorine dioxide (ClO2 ) is 155 Torr at -22.75 ?C and 485 Torr at 0 ? C. What is the normal boiling point of chlorine dioxide? The universal gas constant is 8.314 J K/mol .
Biological organisms live at great depths in the ocean and they have adapted their bodies to survive at extreme temperatures and pressures in the dark. One of the adaptations is to equilibrate their internal pressure with the external pressure. Ca
Draw an energy diagram that explains why pyridine is a better nucleophile AND leaving group in the following reaction.
The vapor pressure of CH3 COCH3 (propanone or acetone), is 67 Torr at 0 ? C and 222 Torr at 25 ?C. What is the standard enthalpy of vaporization of propanone? Answer in units of kJ/mol.
A calorimeter contains 34.0 mL of water at 13.5, ^{circ}C. When 1.80 g of rm X (a substance with a molar mass of 70.0 g/mol) is added. Calculate the enthalpy change, Delta H.
Suppose you have 0.001 M solution of a dye with pka of7.2. from the color, concentration of protonated form is found to be 0.0002 M. Assume remainder of the dye is in the deprotonated form. What is the pH of the solution?
What is the formula for solving the following problem? The specific heat of Ti is .523 J/gcelcius. What is the final temperature of 62g of Ti intially at 41celcius after 8.5kj of heat is added?
Say you removed an ice cube at -10 ºC weighing 36 g from your freezer. Now you place the ice cube in a 90 g sample of liquid water at 20 ºC in an insulated (thermally isolated) container. Describe the final state of the system in terms o
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