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Calculate the pH at the equivalence point in titrating 0.120 M solutions of each of the following with 8.0* 10^-2 M NaOH. (a) Hydrobromic Acid (HBr) (b) Lactic Acid (CH3CH(OH)COOH) (c) Sodium Hydrogen Chromate (NaHCrO4)
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What would an increase in the metal wire mass indicate when the metal wire starts to form copper on it from a chemical reaction from 6M HCl and copper (II) sulfate pentahydrate? What would a decrease in the metal wire ma ...
Explain why the mass of the crucible and anhydrous salt is less than the mass of the crucible and the hydrate. What is the chemical formula of copper (II) sulfate?
A watch glass and Filter paper weighing 41.060g was used to collect the CuSCN precipitate in this experiment. After drying, the precipitate, watch glass, and filter paper weighed 42.525g. If the sample alloy used for the ...
While heating your copper sulfur mixture the original crucible lid fell and was broken. You replace the lid with another one. You used the mass of the original lid in your calculations. However the mass of the second lid ...
What are the symbol and name of the element whose average atoms have a mass very nearly half the mass of an average silicon atom?
How is vacuum filtration completing the purification of your sample? Where are the impurities at this point? For a recrystallization lab in organic chemistry
Consider the following reaction: CO + H2 CH3OH A reaction mixture in a 5.18 L flask at a certain temperature contains 26.8 g CO and 2.36 g H2 . At equilibrium, the flask contains 8.67 g CH3OH. Calculate the equilibrium c ...
What is the volume of a solution with a concentration of 1.2 M that contains 12 g of NaOH?
Describe how to assign a Oxidation number from the text: The oxidation number of an atom in an elemental substance is zero. The oxidation number of a monatomic ion is equal to the ion's charge. Oxidation numbers for comm ...
How much will the temperature change when 3.0 g of tooth enamel (specific heat = 0.18 cal/g C) absorbs 0.80 cal of heat energy?
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