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How will you prepare 10 mL of 0.050 M HCl from a 0.10 M solution of HCl? Assume that you use a 10-mL graduated cylinder (in which volumes can be read to the nearest 0.1 mL).
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What is an example of a cell diagram for a voltaic cell? How do I calculate the standard cell potential for the example of the voltaic cell?
A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields 15.48 mg CO2 and 7.39 mg H2O. The molar mass of the compound is 182.2 g/mol. What are the empirical and molecular formu ...
A solution is made by mixing 30.0ml of 0.240M NH3(aq) with 30.0ml of 0.240 M hydrochloric acid. What is (Are) the principal species and their molarities in the resulting solution? What is the PH of the solution?
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There are five forces identified by porter their relevance will be necessary for evaluating companies identified in the pharmaceutical and tobacco industry in the Middle East. CAD Pharmaceuticals Middle East pharmaceutic ...
A person's blood alcohol (C 2 H 5 OH) level can be determined by titrating a sample of blood plasma with a potassium dichromate solution. The balanced equation is 16 H + (aq) + 2 Cr 2 O 7 2- (aq) + C 2 H 5 OH (aq) 4 ...
What would be the effect on our body chemistry if large numbers of enzymes were to become malformed and how do they become malformed?
What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution of NaOH by mass? The density of the 10.0% solution is 1.109 g/mL.
The Earth receives approximately 2 x 1014 kJ/s of solar energy. What mass of solar material is converted into energy each second to produce this much energy
The heat fusion of pure silicon is 43.4 kJ/mol. How much energy would be needed to melt a 5.24 - g sample of silicon at its melting point of 1693 K?
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