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A student determined the calorimeter constant of the calorimeter. The student added 50.00 ml of cold water to 50.00 ml of heated distilled water in a styrofoam cup the initial temperature pf the cold water was 21.00 degrees celcius and of the hot water 29.15 degrees celcius the maximum temp of the mixture was found to be 24.891 degrees C the maximum temp of the mixture was found to be 24.81 celcius assume the density of water is 1.00g ml-1 and the specific heat is 4.184Jg-1K-1 Determine the ( I dont know how to make the sign of a triange) the T-final-T initial for the hot water and the cold water
What is the theoretical yield of bromobenzene in this reaction when 30.00 g of benzene reacts with 65.0 g Br2? b) if the actual yield of bromobenzene was 56.7 g what was the percentage yield
When a Group III unknown was treated with an aqueous ammonia/ammonium chloride and ammonium carbonate, a white precipitate was produced.
Compound A has a solubility of 18 grams per 100. grams of water at 25*C. Cooling a saturated 200. gram solution of a compound A from 84*C to 25*c results in a precipitation of 22 grams of the compound. Calculate the solubility of compound A at 84 ..
Calculate the molality H3PO4 in the solution and Water is the solvent and the molarity of H3PO4 in the solution and the number of ml of the 85% H3PO4 that is required to make 800 ml of 2.00 M H3PO4?
role of sodium carbonate in extraction of caffeine from tea leaves.
If 12800 calories is required to change 45g of substance X from a liquid to a gas, what is the heat of vaporization of substance X?
The concentration of ammonia in a solution is 0.10M. What is the concentration of hydroxide ion in the solution. The Kb of ammonia (NH3) is 1.8 x 10 -5
Key by key on calculator how would I solve for x in 0.2=(0.5)^(x/14.2)? -Original question that brought me to that point-"The half-reaction of 32P is 14.2 days
Calculate the expectation values of x and x^2 for a particle in the state n=2 in a square-well potential?
How much thermal energy transfer is required to vaporize 1.0 metric tone of ammonia?(1 metric ton = 10^3Kg). The delta H vaporization for ammonia is 25.1KJ/mol.
Predict the electronic configurations of (a) the benzen anion, (b) the benzene cation. Estimate the pi-electron binding energy in each case within the Huckel Approximation.
At 200°C, in the reaction below, the molar concentration of A was 7.81 M after 2.33 s and 1.45 M after 7.93 s. What is the average rate of reaction in M/s? 2A => Q + Z
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