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Explain which of the following choices are conjugate acid-base pairs and will produce a buffer solution. Please explain your reasoning. There may be more than one correct choice.
A) HNO3 and NaNO3
B) NaOH and NaF
C) HF and NaF
D) HNO3 and NaOH
Place the following molecules and ions in order of increasing bond angle about the central atom, and explain decision
questioncompare the properties of elements and compounds. give two examples of each including one example that exists
How do you calculate the effective nuclear charge for ions Cl- and K+ assuming that the core electrons contribute 1.00 and the valence electrons contribute nothing to the screening process
Discuss the value that non-executive board members bring to an organization. Provide specific examples to support your response.
Calculate the vapor pressure lowering associated with the dissolving of 35.5 grams of sugar (C12H22O12, MM=343g/mol), in 400 grams of water at 25 degrees C. Ph2o @ 25 degrees=18.6 mmhg
Draw molecular structure of the following compounds. Identify the : paraffins, olefins, alkynes, naphthenes,and aromatics.
A buffer solution is made by dissolving 0.4832 g NH_3 and 1.1032 g NH_4Cl in 250.0 mL water. then 25mL of .0500 M NaOH is added to the buffer solution
Draw the structure of the major organic product you would expect from the reaction of 1-bromopropane with KOC(CH3)3.
You have standardized the NaOH solution that has a concentration of 0.05418 M. You are given a bottle of vineaga(acetic acid) with an unknown concentration.
The water sample is put into a Nebulizer attached to an ICP Spectrometer and the absorbance peak measured at the proper wavelength of lead. Standards are also analyzed to produce a calibration curve for comparison
A solution which contains 41.0 g of an unknown molecular compound in 312 g of water freezes at -2.23°C. What is the molar mass of the unknown?
Our book shows a radioactive decay series in which a sample that starts out as U-238 eventually winds up becoming non-radioactive Pb-206. The half life for this process is extremely long, being 4.51 x 10^9 years. Consider a radioactive mineral sam..
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