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1. How much energy is required to warm 175 mL of water at 18.5°C to 85.0°C? Assume the specific heat of water to be 4.18 J/ g°C.
2. What amount of heat is required to warm 293.4 g of ice at 0.0°C to steam at 100.0°C? Assume the specific heat of water to be 4.18 J/ g°C, DHfus = 3.35 J/g, and DHvap = 2.26 kJ/g.
Gasohol contains ethanol (C2H5OH) which when burned reacts with oxygen to produce CO2 (g) and H2O(g). How much heat is produced when 12.5 grams of ethanol burns.
how many milliliters of a .250 m sulfuric acid solution would be required to completely react with 2.398 grams of solid
Sodium carbonate was used to precipitate silver from a solution. 6.00 grams of silver carbonate were recovered from 1.500L of solution. What was the concentration in ppm of silver ions in the original solution?
the radius of a iron atom is 124 pm. how many iron atoms would have to be laid side by side to span a distance of 1.71
What is the equilibrium pH of the solution? Solve by graphical method (draw a log C -pH graph and label the pertinent info, show your charge balance for the equation)
what product would you expect to obtain from addition of Cl2 to 1,2-dimethylcyclohexene? Show the stereochemistry of the product.
What happens to the time at which the mid point of the breakthrough curve exists the column if the particle size is halved but the adsorption isotherm and column size stay the same?
Solve an equilibrium problem (using an ice table) to calculate the pH of each solution. A solution that is 0.20 M in HCHO2 and 0.14M in NaCHO2
Consider: 2 B5H9 (g) + 12 O2 (g) ? 5 B2O3 (g) + 9 H2O (g) ?H?reaction= - 8687 kJ. What is the enthalpy change when 0.2500 moles of B5H9 are combusted
how I resolve it, A 1.25 gram sample of methane is container in a 850.0 mL flask at295.65 K.What is the pressure of this gas?
Enough of a monoprotic acid is dissolved in water to produce a 0.0113 M solution. The pH of the resulting solution is 6.43
Use Le Chatelier's principle to explain the different colors found in the equilibra in Methyl orange
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