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The heating element of an iron operates at 110 V with a current of 10 A.
(a) What is the resistance of the iron?
(b) What is the power dissipated by the iron?
What relationship exists between H+ ion concentration and OH- ion concentration? What is the OH- concentration in an aqueous solution where the H+
what would be the expected conponent concentration in octanol phase at equiliibrium if the same partitioning procedure would be performed at 60*C? (octanol/ water partitioning coefficient expressed as K= Coct/Cwater).
The following lab requires water free conditions as well as reflux for reaction to be successful. Draw a schematic and label your reaction set up
Calculate number of moles at STP to 3 significant figures for the following: 1 liter of methane gas at 730 mm Hg and 25.0 C. Give answer as ______ x 10
Use the thermodynamic data in Appendix B to calculate the standard cell potential and the equilibrium constant at 25 for the cell reaction in a direct methanol fuel cell
13. Calculate the mole fraction ( Xethanol) of C2H5OH in a solution that contains 46 grams of ethanol, C2H5OH, and 64 grams of methanol, CH3OH. 14. Calculate the molarity (M) of a solution made by dissolving 360 g of glucose (C6H12O6) in enough wate..
the presence of the radioactive gas radon rn in well water obtained from aquifers that lie in rock deposits presents a
The observed temperature raise is 2.78°C. If the heat capacity of the calorimeter is 32.80 kJ•K-1, explain how many nutritional Calories are there per gram of the candy
Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1 degrees Celsius. At what temp would benzene boil
if wet clothes are hung on the line to dry at 10 degrees fahrenheit on a sunny say in january they will first become
When the epoxide 2-vinyloxirane reacts with lithium dibutylcuprate, followed by protonolysis, a compound A is the major product formed. Oxidation of A with PCC yields B, a compound that gives a positive Tollens test and has an intense UV absorptio..
Calculate Hrxn for the reaction below. Ca(s) + 1/2 O2(g) + CO2(g) CaCO3(s) You are given the following set of reactions. Ca(s) + 1/2 O2(g) CaO(s) H = -635.1 kJ CaCO3(s) CaO(s) + CO2(g) H = 178.3 kJ kJ
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