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Calculate the overall energy change in kilojoules per mole for the formation of CaCL(s) from the elements. The following data are needed: (a) Eea for CL(g) = -348.6kj/mol. (b) Ei1 for Ca(g) = +589.8kj/mol. (c) Ei2 for Ca(g) = +1145kj/mol. Heat of sublimation for Ca(s) = +178.2kj/mol. Bond dissociation energy for Cl2(g) = +243kj/mol. Lattice energy for CaCL2(s) = +2258kj/mol. Lattice energy for CaCL(s) = +717kj/mol (estimated) (Use the data from the above to calculate an overall energy change for the formation of CaCL2(s) from the elements. Which is more likely to form, CaCL or CaCL2?)
In a calorimeter of capacity =0, you mix 50g of water at 80°C with 100g of water at 10°C. What is the final temperature
Find the number of moles of water that can be formed if you have 158 mol of hydrogen gas and 74 mol of oxygen gas. Express your answer with the appropriate units.
The original sample is not pure, but is contaminated with a thermally stable compound. Will the reported mole ratio of CaO to CO2 be too high, too low, or unaffected? Explain
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Give the number of electrons in an atom that can have the following quantum number or sublevel designations: n = 3, l = 2
The solubility of PbBr2 in water is 4.21 g in 1.0 L of water at 25 degrees celcius. what is the kp for lead (II) bromide
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draw the stuuctural formula of your drug C13 H21 NO3 albuterol. Highlight any regions of your drug that are nonpolar
Calculate the change in pH when 6.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
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