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Why do you suppose that, at high temperatures, a molecule of water vapor (H2O) has three rotational degrees of freedom and a molecule of nitrogen gas (N2) has only two?
Find the of % Nickel in the coin solution: molority of Nickel is .8469 density of coin solution as 1.00g/mL
A current of 3.58 A is pass through a Cu(NO3)2 solution. Explain how long in hours would this current have to be applied to plate out 4.50 g of copper
Given three acid-base indicators - methyl prance ( end point at pH 4 ) bromthymol blue ( end point at pH 7) , and phenolphthalein ( end point at pH 9) select a suitable indicator for the following titrations.
How will you prepare the following solutions from 6.0 M solution of acetic acid? Give exact details. Assume that a 10-mL graduated cylinder (in which volumes can be read to the nearest 0.1 mL) and a 100-mL graduated cylinder are available.
A baby with a severe bronchial infection is in respiratory distress. The anethetist administers heliox a mixture of helium and oxygen with 92.3 % by mass O2. What is the partial pressure of oxygen being administered to a baby if atnospheric pressu..
Two beakers, one containing 0.010 m NaCl(aq) and the other containing 0.010 m AlCl3(aq), are placed inside a bell jar and sealed. The beakers are left until the water vapor has come to equilibrium with any liquid in the container.
Determine the titration of 50.00mL of a 0.100 M weak acid solution with 0.100 M NaOH. If the pH at the equivalence point is 5.0.
How many grams of a sugar (MW 180 g/mol) must be dissolved in 50 mL of aqueous solution to produce an osmotic pressure of 250 toor. The sugar does not dissociate.
Dioxin, produced as a by-product of various industrial chemical processes, is suspected of contributing to the development of cancer and birth defects in animals and humans. It apparently acts by entering cells by simple diffusion and binding to prot..
Consider the combustion of glucose (C6H12O6). This reaction is 1. spontaneous at all temperatures 2. non-spontaneous towards lower temperatures 3. non-spontaneous at all temperatures 4. spontaneous towards higher temperatures
What are the main greenhouse gases? What is the present level of atmospheric carbon dioxide? Why has carbon dioxide concentration risen since 1860?
Explain and define how each of the following experimental errors or variations would affect your HETP value as well as the efficient of your separation.
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