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What determines the pitch or frequency of a string on a violin or a guitar? How does a musician get a variety of notes from one string? Explain why the crack of a whip is a "mini" sonic boom.
Calcium carbonate reacts with hydrochloric acid to forma a salt, carbon dioxide and water. Write the balanced equation and determine how many grams of salt will be produced of 50g of calcium carbonate was used?
What was the volume of the gas when the temp was changed to 50.0C and the new pressure was 760.0 torr.
What minimum concentartion of Na_{2}SO_{4} will trigger the precipitation oftthe cation that precipitates first? Barium sulfate Ksp = 1.07 x 10^{-10} and calcium sulfate Ksp = 7.1 x 10^{-5}
Calcein indicator is added to the solution. The sample then requires 10.00 mL of 0.0120 M EDTA for titration. Calculate for this sample (a) the molarity of the calcium present, (b), the molarity of the magnesium present, and (c) the total hardness..
How would you prepare 125.0 mL of 0.35 M NaOH solution from a stock solution that has 2.25 M
The molar concentration of Tl+ is M (4 dec places). The molar concentration of Cl- is M (4 dec places).
An experiment requires 45.8 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder.
What dilution would be necessary to get the absorbance of 62.2 down to 3.1
consider the reaction using equal volumes of 10.0ml solutions of 0.25M calcium chloride and 0.25 M silver nitrate poured into a test tube. write the balanced equation, net ionic equation, identify the precipitate, identify the supernate and predic..
What are the three possible nuclear arrangements of N2O. Which one allows for a "good" Lewis structure. This isnt the one nature prefers. Which of the two "imperfect" arrangments is superior
Sucrose, C12H22O11, is a nonelectrolyte; hypochlorous acid, HClO, is a weak electrolyte; and ammonium chloride, NH4Cl, is a strong electrolyte.
Sodium carbonate was used to precipitate silver from a solution. 6.00 grams of silver carbonate were recovered from 1.500L of solution.
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