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What gas can be substituted for neon and why? How would the new gas be different than the neon gas?
Which of the following solutes in aqueous solution would be expected to exhibit the largest freezing-point lowering (assuming ideal behavior)
the highly reactive oh radical a species with an unpaired electron is believed to be involved in some atmospheric
What are the major species present in 0.250 M solution of each of the following acids. Calculate the pH of each of these solutions.
How does the addition of aqueous NH3 to a solution separate and identify Cu2 and Bi3 ions? Why wouldn't the additon of a strong base, such as KOH, work just as well as the addition of aqueous NH3?
Calculate the equilibrium constant, K. (e) Which side of the reaction (reactants or products or neither) is favored structurally?
Trans-1,4-di-tert-butylcyclohexane exists in a normal chair conformation. Cis-1,4-di-tertbutylcyclohexane, however, adopts a twist-boat conformation. Draw both isomers, and explain why the cis isomer is more stable in a twist-boat conformation.
When .422 g of phosphorus is burned, .967 g of white oxide is obtained. Determine the empirical formula of the oxide
Calculate the pH of a solution resulting from the titration of 50mL of 0.033M HBr with 25 mL of 0.117M KOH. Give your answer to two decimal places.
Hexafluorosilicic acid is made by the reaction of silica and hydrofluoric acid by the following reaction 6HF + SiO2 ? H2SiF6 + 2H2O ?Hr = -670 kJ/mol
At constant external pressure (1.2atm), the temperature of 3.25 mol of ideal gas increased from 250K to 305K. Calculate the internal energy change ΔE.
Determine how many ps thre are in 1 s
What is the total mass of each of these elements in the Earth's crust (1 t = 1000kg)?
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