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In Ag+S8->Ag2S reaction, 2g of Ag and 2g of S8 are alowed to reac to completion what is limiting reactant, how many grams of Ag2S are produced, and how many grams of excess reagent remain?
How many electrons are present in an atom with its 1s, 2s, 2p, and 3s subshells filled and with 4 electrons in the 3p subshell? What is the element?
How much stomach acid was neutralized by the 4.3628 g tablet. How much stomach acid would have neutralized by the original 5.6831 tablet
The following lab requires water free conditions as well as reflux for reaction to be successful. Draw a schematic and label your reaction set up
a 7.95 L Container holds a mixture of two gases at 37 degrees celcius. the partial pressure of gas A and gas B, respectively, are .287 atm and .698 atm. if .210 mol a third gas is added with no change in volume or temperature.
Ammonia can be made by reacting calcium cyanamide (CaCN2) with water as shown: CaCN2 + 3 H2O => CaCO3 + 2 NH3. How many grams of calcium cyanamide are required to react with 190.0 g of water
Solid NaI is slowly added to a solution that is .0075M Cu+ and a .0087 M Ag+. Which compound will precipitate first (NaI, CuI, or AgI), calculate [Ag+] when CuI just begins to precipitate
A solid mixture contains MgCl2 and NaCl. When 0.5000 g of this solid is dissolved in enough water to form 1.000 L of solution, the osmotic pressure at 25°C
calculate the pressure of the dimer when the total pressure is .725 atm at equilibrium. 2ch3cooh(g) (ch3cooh)2(g) Monomer Dimer
You have 493 mL of chlorine trifluoride gas at 699mmHg and 45 degrees Celsius. What is the mass (in grams) of the sample.
A lactic acid/lactate ion buffer solution contains 0.31 M HC3H5O3 and 0.90 M C3H5O3-, respectively. The Ka value of lactic acid is 1.4x10^-4. Calculate the pH of this buffer.
You have a solution that is 18.5 (v/v) methyl alcohol. If the bottle contains 1.09 of solution, what is the volume () in milliliters of methyl alcohol
Calculate the entropy change resulting from an increase in temperature from 285 K to 350 K of H2O2 given Cp = A + BT + CT^2 Where A=34.25, B = 55.18 and C = -35.15.
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