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Aluminum strips were added to an aqueous HCl solution and the hydrogen gas was collected over water in a burette. In total 35.5 of hydrogen gas was collected at 25.0 °C and 755.8 The water level inside the burette is also 27.1 mm above the water in the beaker at the end of the experiment. Calculate the mass of Al(s) consumed in this reaction.
What might one do to verify that the global strain energy minimum has been identified for a compound. Why is the energy difference for t-butylcyclohexane significantly greater than the corresponding value calculated for methylcyclohexane
Consider following cell. SCE stands for the saturated calomel reference electrode, which has a fixed potential of 0.244 volt. Pt|VOSO4 (0.0184 M), V2(SO4)3 (0.212 M), HClO4 (0.0100 M) || SCE Calculate the cell potential.
2121g sample of an organic compound was burned in a stream of oxygen adn the CO2 produced was collected in a solution of barium hydroxide. Calculate the percentage of carbon in the sample if .6006 g of BaCO3 was formed
Calculate the minimum pH difference between the stroma and lumen, so that three protons passing through an ATP synthase would provide enough energy for the generation of one ATP molecule
Why do we not have to worry about an E1 reaction occurring for An Sn1 Reaction Synthesis of Trityl Methyl Ether experiment? Write one paragraph
Evaluate the number-average molar mass Mn of the polyamide, and also estimate its weight-average molar mass Mw by assuming that it has the most probable distribution of molar mass.
Diatomic fluorine is an extremely reactive element. It is the strongest oxidizer known which means it is capable of oxidizing all other compounds and elements
a an anakysis of river water yields c n p 41.3 2.4 0.3. compare this to the redfield ratio of c n p 106 16
In a certain experiment, 2.00 g of NH3 reacts with 2.50 g of O2. a) How many grams of NO and of H2O form? b) how many grams of excess reactants remain after the limiting reactant is completely consumed
A solution is made by mixing 32.0mL of ethanol, C2H6O and 68.0mL of water. Presuming ideal behavior what is the vapor pressure of the solution at 20 °C
A sample of neon has a volume of 270 mL when it is at a pressure of 831 mmHg. What will be the volume when the pressure is increased to 1238 mmHg?
The Al2O3 does not react. If the sample residue weighs 2.489 g, what is the mass fraction of Fe2O3 in the original sample?
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