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An open ended manometer containing mercury is connected to a container of gas What is the pressure of the enclosed gas in torr in each of the following
A. the mercury in the arm attached to the gas is 15.8 cm higher than in the one open to the atmosphere atmospheric pressure is 0.971 atm Express answer in three significant figures
B.The mercury in the arm attached to the gas is 8.3mm lower than in the one open to the atmosphere atmospheric pressure is 0.96 atm express in two significant figures
a solution is prepared by dissolving 20.0 g ammonium sulfate in enough water to make 100.0 ml of stock solution. a
If the sun is a distance of 1.5 x 10^8 km from earth, how many minutes does it take sunlight to reach earth if light travels at 186,000 miles each second
What would be the pH of a citrate buffer composed of 0.35 M citric acid (HCit) and 0.25 M sodium citrate. The Ka of citric acid
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of KOH required for precipitation to begin in each case
The pH of coffee is approximately 5.0. How many times greater is the [H3O+] in coffee than in tap water having a pH of 8.0
Write the structural formula of the main organic product of the following reaction between an alcohol (CH3OH), tosyl chloride, and then a nucleophile (CH3S-).
Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A reading of 332 units was obtained for the intensity of the 671 nm red emission line.
a 145ml of beaker with ch3cooh buffer with a ph of 5.000 is sitting on a bench top. the total molarity of acid and
calculate the volume in mililiters (mL) of 6 M NaOH needed to make 500 mL of a 0.100 molar (M) NaOH solution.
we were given mass and volume and we were asked to find limiting reactant in second question we were asked to find
A pt has a blood Ca level of 4.6 mEq/L If 1mol Ca2+= Eq Ca2+ what is the blood calcium levle in mg/dl
when making ice cream, the temperature of the ingredients is decreased to below the freezing point of pure water by using a surrounding water bath that contains a large amount of table salt, NaCl.
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