Calculate the amount of work done
Calculate the amount of work done against an atmospheric pressure of 1.00 atm when 500.0 g of zinc dissolves in excess acid at 30.0°C.
Zn(s) + 2H+(aq) → Zn2+(aq) + H2(g)
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The Henry's Law constant (k) for carbon monoxide in water at 25ºC is 9.71 x 10-4 mol/(L•atm). How many grams of CO will dissolve in 1.00 L of water if the partial pressure of CO is 2.75 atm?
A solution containing 3.47mM X (analyte) and 1.72 mM S (standard) gave peak areas of 3473 and 10222, respectively, in a chromatographic analysis. Then 1.00ml of 8.47mM S was added to 5.00ml of unknown X, and the mixture was diluted to 10.0ml. This
What is the purpose of anhydrous CaCl2? Why it is important that none of the solid CaCl2 be included in the final distillation of your 1-bromobutane?
Hydrocarbons are often reacted with steam to form H2, as shown for propane. Calculate Kp for this reaction at a particular temperature, given:
Magnesium carbonate was added to 25cm cubed of 2.0 mol/dm cubed of nitric acid. All the nitric acid is used up in the reaction. Calculate the volume of gas obtained in the reaction.
Calculate the concentrations of all species in a 0.690 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1=1.4x10^-2 and Ka2=6.3x10^-8.
When 75.0 of a 0.100 lead nitrate solution is mixed with 100.0 of a 0.190 potassium iodide solution, a yellow-orange precipitate of lead iodide is formed what is the molarity of each resulting ion?
The device shown is used in the semiconductor industry to polish silicon wafers. The wafers are placed on the faces of the carriers. The outer and inner rings are then rotated causing the wafers to move and rotate against an abrasive surface.
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