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Assume the H atom oscillates toward and away from the I atom and that force constant of the HI bond is 314 N m^-1 , bond is 161pm. calculate (a) vibrational frequency of the molecule and (B) the wavelength required to excite the molecule into vibration.
Determine the mean and 90% confidence interval for the average fluoride concentration in this sample.
Draw the structures of the products of the neutralization reaction between pyridine and propanoic acid.
How much water must be added to 562 mL of 0.200 M HCl to produce a 0.148 M solution? (Assume that the volumes are additive.)
What is their role in this reaction. In the case of this particular example that you watched, where would each of these ions have come from
If a nonvolatile, yellow crystalline solid sample of 0.351 g is dissolved in benzene (C 6 H 6 ) of 15.8 g formed a solution. this solution freezes at the temperature of 4.77 degree celsius.
Calculate the pH of a solution made by adding 24 g of sodium acetate, NaCH3COO, to 26 g of acetic acid, CH3COOH, and dissolving in water to make 200. mL of solution.
solution of an unknown monoprotic acid with 23.68 mL of .9721 M NaOH results in a solution pH of 3.74 Calculate the Ka of the acid.
Write a structural formula and a line-angle formula of each isomer of C4H8. Do not include any cyclic structure. Write the IUPAC name of each isomer. Make sure to include the cis- or tran- in the name if applicable.
What mass of zinc can be plated onto a metal sheet (a process call "galvanizing") from an aqueous zinc sulfate solution using a 0.755 amp current for 1.50days
When given a problem with an aqueous solution containing Na3PO4 and you need to find the boiling point of the solution only knowing the solution is 18.7% by mass Na3PO4 and the Kb for water is .512 It also says to consider if the solute is an elec..
An experiment shows that a 249 -mL gas sample has a mass of 0.433 g at a pressure of 750 mm Hg and a temperature of 29?. What is the molar mass of the gas?
A latex balloon, inflated to an excess pressure of 1kPa and a radius of 30cm, is attached to a smooth nozzle, initially stoppered. The stopper is removed, and the balloon deflates in 5 seconds.
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