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How many grams NaOH must be added to 250mL of .10M HC2H3O2 in order to bring pH to 4.50?
Calculate the change in chemical potential of the 12g of carbon dioxide after being completely released from the cartridge at room temperature.
A gas mixture with a total pressure of 750mmHg contains each of the following gases at the indicated partial pressures:CO2 , 133mmHg ; Ar,215mmHg and O2,177mmHg
What is the maximum number of grams of NH4SCN (s) that can be prepared from 9.00 g of CS2 (L) and 3.00 g of NH3 (g). The reaction is CS2 (l) + 2 NH3 --> NH4SCN (s) + H2S (g)
how many milliliters of a .250 m sulfuric acid solution would be required to completely react with 2.398 grams of solid
Define and give examples of the following: oxidation reactions; reduction reactions; reactions that are neither
Calculate the amount (volume) of 6.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 150 mg of 9-fluorenol to 9-fluorenone. Whenever appropriate, use balanced chemical equations as a part of your calculation.
A compound A has prominent infrared absorptions at 1050, 1786, and 1852 cm-1 and shows a single absorption in the proton NMR spectrum at ? 3.00. When heated gently with methanol, compound B, C5H8O4, is obtained.
A chloroform-ethanol solution at 35 oC with ?ethanol=0.200 in the liquid phase has a vapor pressure of 304.2 torr and a vapor composition of Yethanol= 0.138. Calculate the activity and activity coefficient for ethanol in this solution
a 10.00-mL sample of sulfuric acid from an automobile battery requires 35.08 mL of 2.12 M sodium hydroxide solution for complete neutralization. what is the molarity of the sulfuric acid? sulfuric acid contains two acidic hydrogens.
Sodium hypochlorite is a common ingredient in household bleach. What is the pH of this bleach if it contains 5% NaOCl by mass? (pKa of HOCl = 7.46)
For the first-order reaction below, the initial concentration of A is 0.240 M. If the concentration of A decreases to 0.0800 M after 21.8 hours, what is the half-life of the reaction
A sample of nitrogen gas that occupies a volume of 31.2 L at a temperature of 0 oC and a pressure of 1 atm contains , answer in moles of gas please.
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