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What minimum voltage is required to electrolyze anhydrous HF? Hint: the H-F bond is so polar that liquid HF is essentially composed of H+ and F- ions.
What is the percent yield for the reaction if 65.0 g of iron(III) oxide produced 15.0 g of iron? b) What is the percent yield for the reaction if 75.0 g of carbon monoxide produces 85.0 g of carbon dioxide
What is the difference between alpha-glucose and beta-glucose? and show the condensation of two glucose molecules to form a disaccharide with an alpha linkage; with a beta linkage.
Of the two materials VO and NiO, which would be expected to exhibit more metallic properties?
What compounds will be present after chemical reaction has occurred. Write out a balanced chemical reaction for this description, and name all compounds present.
What is the activation energy for this reaction? a) 112 kJ/mol. b) 56 kJ/mol. c) 28 kJ/mol. d) 336 kJ/mol. e) 448 kJ/mol.
One method used to store energy during times of low demand is by pumping water uphill into a reservoir. When energy demand exceeds the output produced by power plants
Calculate the pH of a solution prepared by mixing 250. mL of 0.174 m aqueous HF (density = 1.10 g/mL) with 38.7 g of an aqueous solution that is 1.50% NaOH by mass (density = 1.02 g/mL).
Acid-catalyzed dehydration of an alcohol most closely resembles an E1 mechanism when secondary and tertiary alcohols are involved.
A sample of H½O with a mass of 46.0 grams has a temperature of -58.0 àC. How many joules of energy are necessary to heat the steam from 100.0 àC to 114.0 àC if the specific heat of steam is 2.01 J/g àC?
How many molecules of water are produced when 143 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water.
Determine the value of the first-order rate constant. Answer units are microseconds^-1 or (us^-1). B) Determine the half-life for the decomposition of Cl2O2.
at 1 atm, how much energy (kJ) is required to heat 81.0g of H2O(s) at -22.0 degrees celcius to H2O(g) at 119.0 degrees celcius?
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