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Nitrogen dioxide decomposes according to the reaction given below where Kp = 4.48 10-13 at a certain temperature.2 NO2(g) 2 NO(g) + O2(g)
A pressure of 0.51 atm of NO2 is introduced into a container and allowed to come to equilibrium. What are the equilibrium partial pressures of NO(g) and O2(g)?
suppose that a student performing an experiment mistakenly calibrated the pH meter using pH 6 instead of a pH 7 buffer. As a result all pH meter readings were too low.
Siver nitrate is sadded to a solution containing an unknown salt. An off-white colored precipitate forms. Nitric acid is added to the mixture, the precipitate dissolves and a gas is given off. What is the anion present: Cl-, Br-, I-, PO4 3-, SO4 2..
Exactly 1.0065 g of an unknown solid containing Fe2(SO4)3 and non-ionogenic impurities was dissolved in about 25 mL of wate
You need to produce a buffer solution that has a pH of 5.38. You already have a solution that contains 10. mmol (millimoles) of acetic acid.
Supppose that a 2 L solution is made from 178 mg of citric acid (C6H8O7). What is the molar mass of C6H8O7
.80g of hydrogen chloride () is dissolved in water to make 4.5L of solution. What is the pH of the resulting hydrochloric acid solution
If I have 2 mM of pyrene in decane, how do I make 10 uM, 0.5 mM, 1.0 mM, and 1.5 mM solutions using the density of decane (0.73 g/mL)
A box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 427cm^3 and the total mass is 4.36 kg . What percentage of the spheres are copper?
Which solution will have the larger change in its freezing point: a 0.75 molal solution with water as the solvent or a 0.75 molal solution with naphthalene as the solvent. Calculate delta T for water and delta T napthalene
Based on understanding of enthalpy, what is the sign of dH for the binding of Cu2+ to soil. Explain.
Which one of the following is a buffer solution?
if 8.40 grams of C are burned, how much heat will be released for the following balanced reaction: C + O2 -> CO2 + heat (393 KJ)
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