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A buffer system contains .55 M acetic acid and .47 M sodium acetate. What is its pH? The Ka for acetic acid is 1.8x10^-5.
An organic mixture weighing 2.416 grams contains inert materials and benzoic acid. The benzoic acid is extracted into 100.0 mL of 0.1513M NaOH. After extraction
Using the Ka values, calculate the pH of a buffer that contains the given concentrations of a weak acid and its conjugate bases. [1]. 0.86 M NaH2PO4 and 0.63 M Na2HPO4 [2] 0.60 M NaHCO3 and 0.72 M Na2CO3
if 510 grams of sodium hydroxide reacts, how many grams of magnesium nitrate are needed for complete reaction?
How many grams Na3PO4 of will be needed to produce 475 mL of a solution that has a concentration of Na+ ions of 0.900 M ?
It is filled with helium at 23 oC and 0.991 atm and placed in an oil bath. To what temperature (oC) will the oil bath need to be heated to first open the safety valve?
Draw the structure(s) of the epoxide(s) you would obtain by formation of a bromohydrin from cis-3-heptene, followed by treatment with base
A sample containing 2.20 moles of neon gas has a volume of 8.00 L. Assume that the pressure and the temperature remain constant. What is the new volume of gas in liters when a sample of 70.0 g neon is added to the neon gas already in the container..
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.
A compound contains only carbon and nitrogen and is 46.2% carbon by mass. A gaseous sample of the compound has a density of 2.05 g/L at 927 torr and 105 °C
A piece of ice weighs 35.0 g. how much energy is required to heat the ice from a solid at -5.0 degrees C to liquid water at 65.0 degrees C?
Calculate the density of Slackium Oxide. (g/cm^3) What is the Volume of unit cell (cm^3)
Explain which you would choose as a starting material to prepare an alkene with the maximum yield.
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