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Depict whether or not a precipitate will form when a solution containing 1x10-2 M Pb2+ ions is added to a 2 x 10-4M solution of I- ions the Ksp of PbI2 is 9.8×10-9
The decomposition of a compound, A, to form B + C is known to be a first order reaction. If the half-life of the reaction is 5.93 minutes at 65 °C, what is the value in min-1 of the rate constant for the reaction at this temperature
The vapor pressure of the pure liquids at 25°C are 451 torr for pentane and 321 torr for cyclopentane. Assume that the solution is an ideal solution.
Calculate q, w, ?E, and ?H for the process in which 80.0 g of nitrous oxide gas (N2O) is cooled from 162°C to 53°C at constant pressure of 5.00 atm. (See Table 9.1.) N2O Cv J/K mol = 30.38 Cp J/K mol = 38.70
What wavelength of radiation must be used to eject electrons with a velocity of 1.5 X 10^3 km s-1
A tap water sample is to be analyzed for nickel at the ppm level, which method would yield accurate results with the least amount of sample preparation?
The effective nuclear charge is approximated as the total nuclear charge minus the number of core electrons. Thus, effectively, core electrons decrease the nuclear charge felt by the valence electrons because they are between the nucleus and the v..
Consider the titration of 52.0 mL of 1.2 M NaOH with 1.0 M HCl. Find the pH at all the following points. At the equivalence point.
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C2H6 (g)+ H2 (g) -> 2CH4
Calculate the number of grams of HC2H3O2 needed to make 450 mL of 0.322 M solution.
what are the products of cyclohexanol
If magnesium oxide smoke has been lost in too great an amount during the heating of the crucible would this have made the calculation % Mg in the product too high or too low? Explain.
What is the volume (in mL) needed to make a 0.1273 M NaOH solution with 0.02534 moles of NaOH?
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