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A 50.0-ML sample of 1.00M CuS04 is mixed with 50.0mL of 2.00M KOH in a calorimeter. The temperature of both solution was 20.2*C before mixing and 26.3*C after mixing. The heat capacity of the calorimeter is 12.1 J/K. Find delta H? Assume the specific heat and density of the solution after mixing are the same as those of pure water.
What is the molar mass of the compound? Express your answer to two significant figures and include the appropriate units
A student needs 65g of butonic acid for a reaction. The student has 450g of a 43% in ethanol.
A .692 L NaCl solution is diluted to a volume of 1.25 L and a concentration of 4.00 M. What was the initial concentration?
The temperature of a metal (mass 21.6) rises 6.04 degrees C when 60.0 J of energy is applied to it. What is the identity of the metal?
for the reaction ch4202 yields co22h2o how many moles of carbon dioxide are produced from the combustion of 100 grams
How do you predict the reaction direction from an equilibrium expression? How do you calculate equilibrium concentrations and constants?
What common structural features or functional groups allow benzoic acid to physically distribute itself between the two layers in Part A (methylene chloride and water)
In the titration of KHP with a NaOH solution done in experiment to standardize the NaOH solution, you use small amounts of deionized water to rinse the walls of the erlenmeyer flask or the tip of buret during the titration. What effect would this ..
You are given a 14.8 M solution of ammonia in water. How many milliliters of this solution do you require to produce 75 mL of a 2M ammonia solution when diluted with water
Supercooled (metastable) water vapor commonly occurs in the atmosphere if dust particles are not present to begin condensation of the liquid.Sometimes small particles,such as tiny crystals of silver iodide
The cell potential was measured to be 0.06800 V at 25 °C. By use of the Nernst equation, determine the concentration (M) of Pb2+ in the solution of Cell A.
Calculate molality and mass percent of alcohol in the mixture. A solution of ethanol, C2H5OH, in water has a concentration of 1.996 mol L-1. At 20.0 ºC its density is 0.9677 g mL-1
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