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Write a balanced net ionic equation to show why the solubility ofCr(OH)3(s) (Ksp =6.7E-31) increases in the presence of a strong acid and calculate the equilibrium constant for the reaction of this sparingly soluble salt with acid.
A mixture at equilibrium at 827 C contains .552 mol CO2, .552 mol H2, .448 mol CO, and .448 mol H20. The balanced equation is shown below: CO2(g) + H2(g) CO(g) + H2O(g) What is the value of Keq?
Automotive air bags inflate when sodium azide, NaN3, rapidly decomposes to its component elements:?
In a similar procedure the infrared spectrum of the crude acid chloride revealed the presence of an impurity having two strong bands at 1763 and 1720 cm-1. Examine of the impurity by mass spectrometry revealed a parent ion at m/e peak of 254. As w..
Assume that the ideal gas law is valid, with T=t(celcius)+a, and that the values of R and a are not known. Determine R and a from the measurements provided.
lemon juice has a ph of about 2.5. Assuming that the acidity of lemon juice is due solely to citric acid, that citric acid is a monoprotic acid,
Shells of mussels (clams) are mainly of calcium carbonate. Usually the shell is stable and its content is in equilibrium with the surrounding. Mussels need to built up or reduce their shell, however, for additional surrounding.
The current dietary recommendation is to consume less than 0.1 mol of sodium per day. one teaspoon of table salt. The sodium content of a popular type of fast-food hamburger is 730 mg
138g of K and 448g of I react completely to form KI. What mass of KI would have been produced if 138g of potassium and 41g of iodine has been used?
Suppose that 0.330 mol of methane, CH4(g), is reacted with 0.480 of fluorine, 0.480 mol, F2(g) forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released
What is the pH at the point during a titration when 34 mL of 0.200 M HCl has been added to 33 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10-5 for NH3.
you wish to prepare a buffer solution containing nan3 and hn3 hydrazoic acid. you have to prepare the solutions first.
Calculate the atom economy and reaction efficiency of your synthesis. (b) Describe some green features of your synthesis, and any that aren't so green.
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