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A mixture contained no fluorine compound except methyl fluoroacetate, FCH2COOCH3 (molar mass = 92.1g/mol). While chemically treated, all the fluorine was converted to CaF2 (molar mass = 78.1 g/mol). The mass of CaF2 obtained was 12.1 g. Define the mass of methyl fluoro acetate in the original mixture.
92.0g
28.5g
24.2g
14.3g
12.1g
Draw clear representations of the two chair conformations of cis-2-methylcyclohexanol. Circle the hydrogen atoms which are anti to the hydroxyl group.
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 10.0g of luminol to H2O creating a solution with a total volume of 75.0 mL.
Zubrick and explain the meaning of the term 'salting out'. When might you want to do this? explain what we really are doing in this step and why it could not possibly be to salt-out the product at that point.
For each of the following acid-base reactions, calculate the mass (in grams) of each acid necessary to completely react with and neutralize 5.15 of the base.
in a laboratory, 6.82 g of Sr(NO3)2 is dissolved in enough water to form 0.500 L of solution. A0.100 L sample is withdrawn from this stock solution and titrated with 0.0245 M solution of Na2CrO4. What voume of Na2CrO4 solution is needed to precip..
how do you write two half balanced equations for the following acidic solution MnO4^-(a)+Fe(s)--->Mn^2+(aq) +Fe^2+(aq)
To aid in the prevention of tooth decay, it is recommend that drinking water contain 0.90 ppm fluoride (F-). (a) How many grams of F- must be added to a cylindrical water reservior having a diameter of 5.20 x 102 m and a depth of 47.11 m
A 9.20-L container holds a mixture of two gases at 47 °C. The partial pressures of gas A and gas B, respectively, are 0.315 atm and 0.803 atm. If 0.180 mol of a third gas is added with no change in volume or temperature, what will the total pr..
How many constitutionally isomeric monochlorides can be formed on free-radical chlorination of 2,3,3-trimethylpentane? trimethylpentane + Cl2 reacted with heat
Calculate the concentration of Ni2+ in a solution that was prepared by mixing 50.0 mL of 0.020 M Ni2+ with 50.0 mL of 0.0300 M EDTA. The mixture is buffered at a pH of 3.0.
What is the voltage at 25degrees C for the Voltaire cell of Ni and Ag electrodes if the Ni electrode is dipped into solution of .05 M NiCl2 and the Ag electrode is dipped into a solution of 2M AgNO3
What are the steps to follow when calculating the percent ionization of acid in a buffer solution. example) percent ionization of .20 M benzoic acid in pure water and percent ionization of benzoic acid in a solution containing
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