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An AM station broadcasts rock music at "951 on your radio dial." Units for AM frequencies are given in kilohertz (kHz). Find the wavelength of the station's radio waves in meters (m), nanometers (nm), and angstroms (Å).
If it is Ionic, mention which is the cation and which is the anion. Discuss how the ions formed (gaining or losing electrons and how many). If it is covalent, discuss where the covalent bonds are and draw the structure.
calculate the molecular mass of the nonionic solutes. 8.02 grams of solute in 8.61 grams of water lower the freezing point to -0.430 degress celcius.
What mass of silver is needed to absorb 50.0 cal of heat if the tempature of the sample rises from 24 c to 36.4 c Specific heat of silver
An aqueous solution containing 5.77 g of an optically pure compound was diluted to 500.0 mL with water and placed in a polarimeter tube 20.0 cm long. The measured rotation was -3.95° at 25 °C. Calculate the specific rotation of the compound.
What gas was evolved when you treated the acetone-bisulfite addition compound with hydrochloric acid?
A 100-mL sample of the juice took 9.58 of the iodine solution to reach a starch end point. What is the concentration of Vitamin C.
which cation will precipitate first. What minimum concentration of Na2SO4 is required to cause the precipitation of the cation that precipitates first
How many litres of ethyl mercaptan (C2H5SH ; liquid density = 0.8931 g/cm^3) should be added to 100,000 standard cubic meters of natural gas to produce a concentration in the gas of 1ppm
Start with a liquid labeled "20.00mL HCl (aq)", you are able to reach equilibrium (at pH 7.000) through titration by adding 14.25 mL of 0.2030 M NaOH. What is the Molarity of the acid
a female patient requires 2.70times10-2 grams of a sulfa drug then determines how many tablets should be given to her
Describe and explain how each of the following experimental errors or variations might affect your results.
You determine that the freezing point of a solution consisting of 20.0 g of cyclohexane and an unknown amount of naphthalene has a freezing point depression of 3.30 degrees C. How much naphthalene was added to the cyclohexane
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