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Discuss the answers to the following questions in a well written paragraph. Just answering the questions with short answers or lists will not earn more than half of the points available.
What specific acids or bases are weak or strong acids or bases? Explain why.
Why did some of the chemicals neutralize and others did not?
Did any of the mixtures get more acidic than the original acid or less acidic than the original base? Why do you think this happened or did not happen?
Explain an unknown acid is a diprotic acid can donate 2 proton. 0.954g of the unknown acid is titrated with 0.509M NaOH.
A student has a sample (less than 100 mg) that she would like to test for presence of lead. She has access two different atomic absorption spectrometers (flame and furnace) that could be used for analysis.
Calculate the OH- concentration of a solution that has [H3O+] of 3.5 x 10 -10M. Is the solution acidic, base, or neutral? report answer in two decimal places.
Calculate the vapor pressure (in torr) at 293 K in a solution prepared by dissolving 43.5 g of the non-volatile non-electrolye glucose in 159 g of water. The vapor pressure of water at 293 K is 17.54 torr.
A 32.6 iron rod, initially at 22.3, is submerged into an unknown mass of water at 63.3, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 59.1. What is the mass of the water
A 774 mL gas sample at STP is compressed to a volume of 267 mL, and the temperature is increased to 32C. What is the new pressure of the gas in Pa? Answer in units of Pa.
what is the K value for compound Z in the biphasic system, 2) how much do you remove in each individual extraction
when 3-hydroxycyclobutanone is treated with mid base, 1,3,5-triacetybenzene is formed in 50% yield.
In the equation HSO4- + H2O SO4-2 + H3O+, if the Ka is 1.5 x 10 ^-2 and HSO4- = 1.0 M at equilibrium, what is the pH of this solution?
How does the lead test kit actually work explain the chemistry behind the lead test itself. It uses Sodium Sulfide to test for lead.
Draw a graph that shows the relative energy of the conformer as a function of the torsional angle. Make sure that you clearly label which conformer corresponds to which position on the graph
A 2.914-g sample gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 C in a crucible until a constant mass is reached.
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