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A student weighs 2.046 g of Cu into a 250 mL beaker at the beginning of the experiment. At the end of the experiment 1.374 g Cu is recovered. Calculate the percent loss of Cu.
Compute the theoretical amount (volume) of 3 M sodium hydroxide needed to convert 1.75 grams of benzoic acid to its water-soluble salt.
What is the half-life of a compound if 89 percent of a given sample of the compound decomposes in 56 min? Assume first-order kinetics.
One of my pre-lab questions asks me to add one of two steps to the beginning of the mechanism for the reaction of benzopinacol with I2/HOAc to benzopinacolone to show the function of I2 in this rearrangment.
A certain solid metallic element has a density 7.87 g/cm3 and a molar mass of 55.85 g/mol. It crystallizes with a cubic unit cell, with an edge length of 286.7 pm. calculate the number of atoms per unit cell.
If the speed limit is 75 mph, could the driver of the car reasonably evade a speeding ticket by invoking the Heisenberg uncertainty principle?
It takes 52.0J to raise the temperature of an 11.9g piece of unknown metal from 13.0C to 24.8C. What is the specific heat for the metal
what is the volume in milliliters of 20.0 g of acetone if the density of acetone is .791 g/ml?
What is the pH of a buffer solution that is 0.255 M in hypochlorous acid (HClO) and 0.333 M in sodium hypochlorite? The Kb of hypochlorous acid is 2.63 x 10 ^-7. ( Use ICE and please show work)
If it takes 3.50 minutes for the concentration of the reactant in a first order reaction to drop in concentration from 1.20M to 0.400M, how long will it take for the concentration to drop from 0.400M to 0.200
So he used this in his calculation. Actually it boiled at 102.*c during experiment. Did this assumption cause his calculated specific heat to be too high, too low or not affect?
If the molar of a binary compound has a molar mas between 145 and 160 amu and contains 52.98% oxygen and the balance chhlorine what is the molecular formula
Calculate the concentration of oxalic acid solution also show investigating a prepare a standard solution for volumetric analysis
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