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Question: Write three orbital designations that would be incorrect and explain why each is incorrect. For example, 1p would be an incorrect orbital designation because there is no p sub-shell in the first orbit.
Calculate the vapor pressure of water, in torr, above a solution prepared by dissolving 65.40 g of ZnCl2 in 445.0 g of water at 323.0 K. The vapor pressure of pure water at 323.0 K is 92.50 torr.
For complex molecules, such as those found in organic chemistry and those involving proteins, it is often the case that a) possible reactions are dictated by how the molecule was formed
you wish to prepare a buffer solution containing nan3 and hn3 hydrazoic acid. you have to prepare the solutions first.
Why did we acquire all spectra without rotationg the sample? 3) Why are Na-23 peaks shifted to lower ppm values when sodium is encapsulated by 18-crown-6 ether
Construct a delta H and delta S table, including the four possibilities associated with the two possible signs for each of delta H and delta S. Discuss the resulting sign of delta G and the spontaneity of the process.
Draw and label a flow chart of the process. THEN calculate the mass and mole fractions of benzene and the molar flow rates of benzene and toluene (mol/h) in the overhead product stream.
Identify all the possible macrostate and the corresponding microstates in a system consisting of two communicating containers and four atoms
How many milligrams of sodium ion are in 250 ml of a 3.6%(m/v) solution of sodium phosphate, Na3PO4
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.049 M in NH4Cl
CaC2 + 2H2O --> C2H2 + Ca(OH)2. Using this equation, determine how many moles of CaC2 are needed to react completely with 49 g H2O.
The oxygen sample burned in sodium to form sodium oxide, Na2O - write a balanced equation for the reaction.
A 25.0-mL sample of 0.150 M butanoic acid is titrated with a 0.150 M NaOH solution. What is the pH before any base is added? The Ka of butanoic acid is 1.5 x 10-5.
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