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Calculate the ionic strength of (a) 0.0061 M NaOH (b) 0.0005 M La(IO3)3 Assume complete dissociation at this low concentration and no hydrolysis reaction to form LaOH2.
The equilibrium pressure of H2 over solid uranium and uranium hydride, UH3, at 500 K is 139 Pa. Calculate the standard Gibbs energy of formation of UH3(s) at 500 K.
What are the concentrations of OH- and H in a 0.00085 M solution of Ba(OH)2 at 25 °C? Assume complete dissociation.
1.0 atm pressure of oxygen is 0.041g/L. The solubility of oxygen in water at 3.0 atm and 25 C is _____ g/L.
Grams and centimeters in the metric system have been defined so that the density of water at 3.98 C is exactly 1. At 20 C, the density of water is 0.9982 g/ml. What percent error results from the assumption that the density of water is 1.000 g/ml ..
What term expresses the ratio of moles of reactants and products according to the coefficients in the balanced chemical equation?
Consider hte boiling of a liquid such as water in a frictionless piston and cylinder device computer the work obtained from the psiton when 1 kg of liquid water is vaporized to steam at 100 degrees C
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.210 M HClO(aq) with 0.210 M KOH(aq). The ionization constant for HClO (4.0*10-8).
When a system is in a state of chemical equilibrium, a state of apparent rest, is anything going on at the molecular
In an acidic solution (with an excess of iodate), the titration of a 25 mL sample of potassium iodide required 26.51 mL of 0.0949M sodium thiosulfate titrant.
How many grams of potassium lactate (KC3H5O3) must be added to 114.0 ml of 0.5 M lactic acid in order to prepare a buffer solution at pH 3.1? The pKa of lactic acid is 3.8.
4. How many grams of NaNO3 would you add to 250g of H2O in order to prepare a solution that is .500 molal in NaNO3?
If 25 mL of 7.0 M H_2SO_4 was spilled, what is the minimum mass of NaHCO_3 that must be added to the spill to neutralize the acid?
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