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Solve an equilibrium problem (using an ICE table) to calculate the of each of the following solutions. 1) 0.12 M HF pH = ? 2) a mixture that is 0.12 M in HF and 0.12 M in NaF Explain And show work please
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 9.70 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C
Choose the correct Lewis electron-dot symbols that depict the monatomic ions formed from each of the reactants, and predict the formula of the compound the ions produce.
A shiny piece of metal is beleved to be either platinum or nickel. if the price has a mass of 156.485g and a volume of 7.31 ml, calculate its density and decide which elemnt it is made of. The density of Ni is 8.9 g/ml, pt is 21.4 g/ml
The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted. If 0.560 moles of a monoprotic weak acid
A cook wants to heat 1.89 kg of water from 31.0 C to 100.0 C If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn? Natural gas produces 49.3 kJ of heat per gram. (For the sake ..
A 0.1019g portion of an aspirin tablet was dissolved in sufficient water to prepare 1.000L of solution. A pipet was used to transfer 10 mL of the solution to a 100 mL volumetric flask. A 2 mL portion of 4 M NaOH (aq) was added to the flask, and th..
Explain how to prepare 0.250 L of a 0.500 M CuSO4 solution. 1. Measure out 0.500 moles of CuSO4 solid 2. Measure out 20.0 g of CuSO4 solid 3. Measure out 0.500 moles of CuSO4 solid and add water until a volume of 1.0 L is reached 4
Write balanced net ionic equations for the following reactions in basic solution. Express your answer as a chemical equation. Identify all of the phases in your answer.
the equilibrium constant, Kc, for this reaction is 4.6 x 10^-3. N2O4(g) 2NO2(g). if the equilibrium mixture contains .050 M NO2 what is[N2O4]
A buffer solution is prepared by mixing 47.5 mL of 0.772 M carbonic acid with 58.8 mL of 0.0346 M sodium hydrogen carbonate. 1. Calculate the pH (to two decimal places) of this solution. Assume the 5% approximation is valid and that the volumes are a..
the carbon-carbon bonds would be alternately long and short. However, to consider the structures as resonance contributors (or to connect them by a double-headed arrow) violates a basic principle of resonance theory.
Explain how these products are produced by showing the mecahnism involved. (draw).
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