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If 0.00523 mol N2O(g) effuses through an orifice in a certain period of time, how many moles of N2O5(g) would effuse in the same time under the same conditions?
Enter your answer with three significant figures.Enter scientific notation as 1.23E4. (e.g. Enter 1.23x104 as 1.23E4.)
A 255-mL flask contains pure helium at a pressure of 745 torr. A second flask with a volume of 455 mL contains pure argon at a pressure of 725 torr.If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial ..
Calculate the change in pH when 7.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
Which enzymes of the glycolysis pathway catalyze irreversible reactions
How much heat (in ) is required to warm 12.0 of ice, initially at -12.0, to steam at 114.0? The heat capacity of ice is 2.09 and that of steam is 2.01 .
Draw the structure (on a scratch sheet of paper) for the molecule that fits the following description and then name it according to IUPAC formalism:
What is the Volume of 0.75 mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL
How much A would have been extracted into ether if the orginal aqueous solution had been extracted once with a 500-mL portion of ether? What percentage of A would have been extracted by the ether?
What is the initial concentration of the Fe2+(aq) solution?
An aqueous KNO3 solution is made by using 84.6g of KNO3 diluted to a total solution volume of 1.43 L. Calculate the molality and mass percent of solution. Assume a density f 1.05g/mL or the solution.
calculate enthalpy change for the quantity of zinc reacted. Be sure to follow the significant figures convention in the answer you report.
At what temperature will air (MW=29) have the same density as helium at 300 K, both gases at the same pressure.
What are your actual experimental ratios? Give possible reasons for any observed variations from these ratios.
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