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A drop of water weighing 645 mg condenses on a surface of leadblock weighing 65.1 that is initially at 5.0 degrees C. If the heat released during condensation goes only toward heating the metal,what
What is the minimum amount (mol) of benzaldehyde and acetone necessary for an aldol condensation reaction if you need0.2 g of product to find melting point, and 0.2 g of product to doa derivative an
A collapsible vessel with a volume of 40.0 L 1.31 mole of dry nitrogen at an unknown temperature and a pressure of 710 mmHg. When the 0.12 mole was added to the vessel, yhe volume changed to 42.3 L,
When the difference in pH across the membrane of a glass electrodeat 25°C is 3.76 pH units, how much voltage is generated by the pH gradient ifthe slope of the calibration is 100%? What would th
What is the molarity of Br2(aq) when saturated calomel and Ptelectrodes are dipped into a solution containing 0.2 M Br- to give a cell potentialof 0.15V
Consider the titration of 200.0 mL of 0.0250 MAl(NO3)3 by 0.125 M EDTA in a solutionbuffered to pH=9.00. (at pH=9.00, αy4- = 0.041 andlogKf=16.4 for the formation of the aluminum(III) EDTA
If the specifc heat of water is 4.184 J/g*Celsius and using the equation q(solution)= mass of solution * specific heat of solution* delta T, what is the expected temperature rise (delta T)?
Calculate Eο, ΔG, and K, the equilibrium constant,for the following reaction occurring in a voltaic cell understandard conditions. Is the reaction spontaneous understandard conditions?
What are the major products of the reactions of 2-cyclohexenone with each of the following:
Suppose that ammonia is washed into a farm pond containing 3.0 X106 Liters of water. If the pH of the pond is found tobe 9.81, what volume of liquid ammonia found its way into the pond?
What mass of aluminum can be produced by the Hall process in aperiod of 19.3 h, by using a current of4.1 MA?
Study the net ionic equation for Hc2H3O2 and NH3 H2O which isH+ + NH3 --->NH4+ and explain why solution is weak electrolyte but strong conductor when mixed??
Think about the possibility of the alcohol product reacting with methanolic KOH. How would this effect the purity of the acid product? How could you tell if your acid product was contaminated in thi
Calculate the concentration of OH- ions in a HCL solution whose hydrogen ion concentration is 1.3M.
Boron has 2 naturally occuring isotopes, which have masses10.0129 and 11.0093 amu, respectively. Given the average atomic mass of boron (10.81amu), determine the % abundance of each isotope.
A student add a total of 15.00 m L of .5432 HCl to their unknown alkaline earth carbonate .it completely dissolved and stopped fizzing . Addition of 3 drops of bromophenol blue confirmed
You are asked to go into a lab and prepare an acetic acid- sodiumacetate buffer solution with a pH of 4.00 plus or minus 0.02. What molar ratio of CH3COOH to CH3COONa should be used?
What is the actual concentration of KI (aq) if the nomial concentration is 0.30 M and 49.815 g are used in 500.00 mL? Explain in detail.
Dr. pepper is bottled so a bottle at 25C contains carbon dioxide at a pressure of 5 atm over the liquid. assuming an atmospheric partial pressure of carbon dioxide is 4e -4 atm.
Write the equation for the solubilityequilibrium for your solute and include heat as a reactant orproduct. Explain the heat effect in terms of relative energies involved in the process of solution.
Octane has a normal boiling point of 125.5C and a heat of vaporization of 38.8KJ/mol. what is the vapor pressure of octane at 20C?
How does increasing the solvent's polarity affect the Rf values of non-polar compounds? Explain in detail.
What is the purpose of using concentrated sulfuric acid to make aspirin....what would happen if we left sulfuric acid out?
Explain the Coordination Chemistry and Chemical Speciation Utilized in the Analysis of Fluoride in Water Samples by Fluoride Ion-Selective Electrode
What is the surface area expressed in square feet, of asingle face of the pile? Exclude the ends of the pile Determine the total surface area, expressed in square meters, of the pile,including the end