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The air in a 5.00- L tank has a pressure of 1.20 atm. What is the new pressure, in atm,when the air is placed in tanks that have the following volumes, if there is no change in temperature and amount of gas?
a. 1.00 L b.2500. mL c.750. mL
How many moles of Cl- are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above. How many moles of H+ are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above
10.2 g of ice at -4.8oC is added to 164 mL of water at 50.1oC. What is the final temperature (oC) of the mixture
products of the synthesis of salicylic acid from methyl salicylate via saponification?
What was the pH of the original benzoic acid solution. What are the concentrations of all of the following ions at the equivalence point
If a 1-mole sample of a real gas from a compressed gas cylinder goes from 230 atm to 1 atm and from a volume of 1cm3 to 195cm3, what is the entropy change for the expansion if it is assumed to be isothermal.
The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 1.000-mg sample remains after 3.50 years?
How does the chromatographic seperation ability of thin layer chromatography compare to seperation (resolving) power of column chromatography?
question if a formic acidformate buffer is 0.031 m in formic acid and has a ph of 3.91 what is the molar concentration
when 0.250 mol of ch4g reacts with excess cl2g at constant presure according to the chemical equation shown bellow 177
Liquid nitrogen trichloride is heated in a 2.88-L closed reaction vessel until it decomposed completely to gaseous elements. The resulting mixture exerts a pressure of 766 mmHg at 75°C.
Consider the titration of 40.0 mL of 0.171-M of KX with 0.141-M HCl. The pKa of HX = 10.89. Give all pH values to 0.01 pH units. a) What is the pH of the original solution before addition of any acid
What mass of this substance must evaporate in order to freeze 112 of water initially at 18? (The heat of fusion of water is 334 the specific heat of water is 4.18 .
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