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what is the percent of magnesium in magnesium phosphate?
The extrapolated literature value of KEQ for the formation of FeNCS^2+ at 25 degrees C and zero ionic strength is 1047. Predict the equilibrium concentration
When 5.89 grams of an CCl4, a nonvolitile, noneelectrolyte is added to a 250 grams of unknown solvent the freezing is depressed by 0.75 degrees Celcius
How long would it take the same number of moles of Ar(g) to effuse through the same membrane?
find the ph of the two equivalence points and the volume (ml) of 0.0414 M KOH needed to reach them in the titration of 17.3 mL of 0.130 M H2co3 (first equivalent point = ML KOH, and pH= )
A body consists of a right circular cone whose base is 12 in. and whose altitude is 16 in. A hole 8 in. in diameter and 4 in. deep has been drilled from the base. The axis of the hole coincides with the axis of the cone. Locate the centroid of the..
Complete and balance an equation describing each of the above reactions. (Type your answer using the format CO2 for CO2, (NH4)2CO3 for (NH4)2CO3, [NH4]+ for NH4+, and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients.)
If 100mL of 0.01 M CaCl2, 100mL of 0.01 M Sr(NO3)2 and 100 mL of 0.01 M Na2SO4 are mixed together; what is the Ca2+ concentrationin solution and which precipitates will form?
An auto mechanic spills 87 mL of 2.6 M H2SO4 solution from a rebuilt auto battery. How many milliliters of 2.6 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid.
A student prepares benzoic acid by hydrolyzing 6.47g of methyl benzoate (FW 136.15 g/mol) using excess sodium hydroxide. If the student recovers 3.71g of benzoic acid
If 4 g of CuSO4 is dissolved in 9.0x10^2 mL of 0.40 M aqueous NH3, what are the concentrations of Cu2+, Cu(NH34 2+, and NH3 at equilibrium? (Kf = 5x10^13)
what is the ppm of hardness for the 0.00100 M CaCl2 solution?
What is the final concentration of copper in the flask b)what is the uncertainty in the value of the copper concentration?
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