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In our world today, aluminum is used for many items, including beach chairs and soda cans. This material was not chosen randomly but was carefully selected based on many variables. Think about where aluminum comes from, how we obtain/purify it and its chemical and physical properties (metal vs. plastic, weight, corrosive vs. non-corrosive). What are some factors that were probably considered before deciding to use aluminum to make beach chairs or soda cans?
A mixture of helium and neon gases at 237 K contains three times the number of helium atoms as neon atoms. The concentration (n/V) of the mixture is found to be 0.150 mol/L. Assuming ideal behavior, what is the partial pressure of helium
STP corresponded to conditions of "standard" temperature (T=0°C) and standard pressure (p= 1 atm). At STP, 1 L of Br2 reacts totally with 3 L of F2 to form 2 L of a product. What is the formula of the product?
What is the molar concentration of the manganese cation in the solution formed when excess solid MnS is added to water after equilibrium has been established
Determine the formation constant, Kf, of AC5. Kf=? The solubility of AB(s) in a 1.000-M solution of C(aq) is found to be 0.152 M. What is the Ksp of AB? Ksp=?
The specific rotation of Compound X is +15.2o. A mixture of Compound X and its enantiomer are placed in the polarimeter and the observed rotation is -5.1o. Which enantiomer is in excess? (+ or -) Calculate the enantiomeric excess.
What is the molarity of a solution made by mixing 25 mL of 8.0 M hydrocholoric acid with 300 mL of 2.0 M hydrocholoric acid
What kind of intermolecular attractive forces would be present between the particles in the following substances
Provide a structure for the following compound: molecular mass 101; IR: 3397, 3200, 1655, 1622 cm-1; 13C NMR: ? 27.5, ? 38.0 (weak)
The nitration of toluene gives o- and p-nitrotoluene as the major products. Please explain this observation, using structures (rather than words) as much as possible.
2.362 grams of an unknown hydrate are heated until all the water is removed. The anhydride reside weight 2.015 grams. Calculate the percentage of water in this hydrate
sodium metal reacts violently with water to produce aqueous sodium hydroxide and hydrogen gas. calculate the enthalpy change for this reaction.
A solution is prepared by combining .025 mole CaCl2 and .015 mol Pb (NO3)2 and adding water to make 1L of solution. Will a precipitate of PbCl2 form in this solution
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