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1) how many grams of glucose are needed to prepare 400 g of 2% m/m glucose solution? 2) how many moles of cacl2 are in 250 ml of a 3 m of cacl2 solution? 3) How many liters of oxygen gas form when 294 g of KClO3 completely react in the following reaction? 4) What is theangle between electron groups in the linear electron geometry?
Compare the relative rate of the foward (EtOH as a substrate) and back reaction (with acetylaldehyde). Use the Michaelis-Menten equation to solve for v when ethanol is 99mM and acetylaldehyde is the substrate and its concentration is 1mM
Which of the following solutions has the highest pH at 25?C?
What percentage of the Ca2 (aq) can be separated from the Ag (aq) by selective precipitation? hint: Ksp for Ag2SO4 is 1.20×10^-5 Ksp for CaSO4 is 4.93×10-5
ultraviolet light strikes a metal plate and ejects electrons having kinetic energy E = 2.04 eV. Calculate the binding energy of an electron at the metal surface.
If a sample containing 3.00 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
calculate the number of moles of the compound that could theoretically be generated. Use the value ?G°\'compound X = -62.3 kJ/mol. Round your answer to two significant figures.
Under standard conditions one of the steps of glycolosis does not occur spontaneously. Can the reaction take place in the cytoplasm of a cell where the concentrations
Use a table of Ka or Kb values to determine whether Kc for the following reaction is less than, equal to or greater than 1 CH3CO2- + HSO4- CH3CO2H + SO42-
Trees in cold climates may be subjected to temperatures as low as -60 C. Estimate the concentration of an aqueous solution in the body of the tree that would remain
What is the pH of 270.0 mL of an aqueous solution containing 0.525 g of the strong acid trifluoromethane sulfonic acid (CF3SO3H)?
determine how many pounds a citizen would have to weigh in order to have ice melt beneath his/her ice skates. Do a bit of research and find out the area if cibtact betweeb a typical ice skating blade and the ice surface
The family estimates that it will take an average of 21 GJ of energy per month to keep the house heated to this temperature for 5 cold months. The cost of electrical energy is $0.185/kWh (kilowatt-hour).
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