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Why is the lattice energy of potassium bromide more exothermic than the lattice energy of rubidium bromide?
Calculate the standard cell potential for each of the following cells then write the overall reaction. (These rxns are given in reduction order for each half-cell.)
calculate the moles of hydrogen and the pressure in each flask where the volume is negligible. Each flask is originally 275K with .455 mols of hydrogen gas and .7atm of pressure. Then one flask is heated to 500K while the other remains at 275K
57.0 mL of 3.50 M sodium hydroxide is combined with 35.0 mL of 1.80 M magnesium chloride. What mass in grams of solid forms?
if you have 310 mL of water at 25 degrees celsius and 110mL of water at 95 degrees celcius, what is the final temperature of the mixture?
Based off of pka values of 10 for phenol and 6.4 for carbonic acid, would sodium bicarbonate be a suitable base for separating phenol from a neutral organic compound via aqueous extraction?
Generate the equilibrium constant expressions for the following reaction. Calculate the numerical value for
draw the form/structural formula that predominates after deprotonation with any appropriate formal charges and hydrogen atoms.
What is the freezing point of a solution containing 5.43 grams of butane (molar mass = 58.8 g/mole) dissolved in 50.0 grams of octane? The freezing point of pure octane is 25oC and the freezing point depression constant kfp is 3.42 oC/m.
What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a pH of 4.84 at 25°C
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 268 {rm torr}. Pure pentane and hexane have vapor pressures of 425 {rm torr} and 151 {rm torr}, respectively, at room temperature. What i..
a metal sample weighing 45.0 grams and at a temperature of 99.1 degrees celsius was placed in 38.6 grams of water in a
Calculate the transformation rate for the austenite-to-pearlite transformation at 650 °C and at 600 °C. Show the relationship(s) you used to arrive at your answers.
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