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To what final concentration of NH3 must a solution be adjusted to to just dissolve .060 mol of NiC2O4 (Ksp: 4x10^-10) in 1L if sikution. Neglect the hydrolsis of C2O4 because the solution will be quite basic.
Suppose that 150.2 J of heat energy is required to completely vaporize 5 g of a pure liquid. If the molar mass of the liquid is 95.64 g/mol, what is the molar enthalpy of vaporization of the liquid
experiment to determine delta H of solution, would you expect to get a larger, smaller or identical temperature change? why?
Calculate the average net charge on phenylalanine if it is in a solution that has a pH of 8.40 (If the charge is positive, you do not need to enter a \+ \" sign.)
CaCO3(s) + 2 HCl(aq) -> CaCl2(aq) + H2O(l) + CO2(g) How many mol CaCO3 can be dissolved in 0.0575 mol HCl?
Predict the products of the following acid-base reactions, and predict whether the equilibrium lies to the left or to the right of the equation.
2.50 moles of COBr2 are introduced into a 2.00 liter flask at 0degrees and heated to a temp of 73 degree celcius. At equilibrium, the equilibrium constant is .190. What is the percent disassociation? what is the equilibrium concentration of each s..
Formation of SO3 from the air pollutant SO2 is a key step in the formation of acid rain, according to the following reaction. Use standard enthalpies of formation from Appendix L to calculate the enthalpy change for the reaction.
A reaction mixture initially contains 2.8 M H2O and 2.6 M SO2. Determine the equilibrium concentration of H2S if Kc for the reaction at this temperature is 1.3 × 10-6.
Calculate the ph change when 25 ml of 3.0 M HCl are added to 500 ml of a solution that is 0.10 M CH3COO
what are the practical properties of acetone and detailed explanation of its properties.
If 72.4 kJ of heat is supplied to a 842 g block of metal, the temperature of the metal increases by 9.0°C. Calculate the specific heat capacity of the metal in J/g·°C.
A an aqueous methanol (CH3OH) solution has a mole fraction of 0.430 of methanol. What mass of water would be present in 706 g of this solution?
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