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A sample of N2O gas effuses from a container in 48seconds. Explain how long would it take the same amount of gaseousI2 to effuse from the same container under identical conditions?
what is the ph of a phosphate buffer when h2po4-140mm and hpo4-23omm? assume the pka for this titration is
When chromium crystallizes, it forms body-centered cubic cells. The unit cell edge length is 288.7 pm. Calculate the density of chromium
Calculate the specific rotation of the compound. An aqueous solution containing 7.33 g of an optically pure compound was diluted to 800.0 mL with water and placed in a polarimeter tube 15.0 cm lon
Molecular chlorine and molecular fluorine combine to form a gaseous product. Under the same conditions of temperature and pressure it is found that the volume of Cl2 reacts with three volumes F2 to yield two volumes of the product.
Explain what is the maximum mole percent of N2 in an air mixture that could be utilize by divers at depths up to 75 m below sea level without undue risk of nitrogen narcosis
a flask contains 0.160 of liquid bromine . determine the number of bromine molecules present in the
How would you make 2-phenyl-2-butanol via a grignard reagent, beginning with any alkyl or aromatic halide and any other organic or inorganic reagents.
Which properties are the same for both reactions and which are different? the number of atoms of each element, the state of the methane molecules, the enthalpy change of the reaction, the state of the carbon atoms.
Write a balanced equation for the combustion of heptane, C7H16, in oxygen, , forming the products carbon dioxide, and water, H2O. How many grams of water will be produced by the complete reaction of 7.88 grams of heptane?
Depict two Lewis structures for Cl2O7 one with a Cl--Cl bond and one with a Cl--O--Cl arrangement of atoms. Minimize formal charges on the atoms. Comprise formal charges in the drawings.
1) What is the filtration rate expected for this system? 2)How significant is the medium resistance?
For the table below, write which orbital goes with the quantum numbers. Don't worry about x, y, z subscripts. If the quantum numbers are not allowed, write "not allowed."
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