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A coffee-cup calorimeter contains 140.0 g of water at 25.2 °C . A 122.0-g block of copper metal is heated to 100.4 °C by putting it in a beaker of boiling water. The specific heat of Cu(s) is 0.385 J/g·K . The Cu is added to the calorimeter, and after a time the contents of the cup reach a constant temperature of 30.2 °C .What would be the final temperature of the system if all the heat lost by the copper block were absorbed by the water in the calorimeter?
If Delta H = -60.0 kJ and Delta S = -0.200 kJ/K, the reaction is spontaneous below a certain temperature. Calculate that temperature
Assuming that your salt was a hydrated form of a sulfate mso4 nh2o calculate n. What values are quoted in handbooks for common hydrates
10.00mL aliquots of an unknown containing element X was mixed with aliquots of a standard solution of element X for atomic absorption. The standard solution contained 1786.50ug X/mL.
If 10.0mL of a 3.00x10-1 M Fe(NO3)3 in 0.500M HNO3 solution is placed in a volumetric flask and then diluted to 50.0mL total volume, what will be the concentration of Fe+3
Consider the following generic chemical equation. 2A+4B ---> 3C. What is the limiting reactant when each of the following amounts of A and B are allowed to react? 2 mol A; 5 mol B 1.8 mol A; 4 mol B 3 mol A; 4 mol B 22 mol A; 40 mol B
Problem- Calculate the binding energy (kJ/nucleon) for a Cu-63 nucleus. H-1 = 1.00785 g/mol, n-1= 1.008665 g/mol, Cu-63= 62.93960 g/mol.
determine the variation of temperature within the wall and the value of temperature at x=0.1m.
Find the pH and the concentration of each of the species of lysine in a solution of .010M lysine monohydrochloride (lysine-HCl)
Using a flow diagram, show the separation of a mixture containing p-bromoacetanilide, N-cyclopentyl-N-methyl-N-propylamine (N mean the group is attached to the nitrogen of the amine and m-nitrophenol. Specify the organic solvent and aqueous soluti..
The endpoint in the titration is "overshot" A. is the reported molar concentration of the hydrochloric acid solution too high or too low. EXPLAIN
An IR spectrum will be run on the product from the 1-butanol reaction to give 1-bromobutane. What stretches in the IR will distinguish 1-bromobutane from 1-butanol (presence or absence)
You are titrating 100.0 mL of 0.0200 M Fe3 in 1 M HClO4 with 0.100 M Cu to give Fe2 and Cu2 using Pt and saturated Ag | AgCl electrodes to find the endpoint. (a) Write the balanced titration reaction. (b) Complete the two half reactions for the Pt..
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