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It has been pointed out that there may be increased amounts of NO in the troposphere as compared with the past because of massive use of nitrogen-containing compounds in fertilizers. Assuming that NO can eventually diffuse into the stratosphere, how might it affect the conditions of life on Earth? Using the index to this text, look up the chemistry of nitrogen oxides. What chemical pathways might NO in the troposphere follow?
the partial pressure of o2 in the lungs ranges from 25 mmhg to 40 mmhg. what concentration of o2 in grams per liter
a. glucose is present in bacterial cells at a concentration ofabout 1 mm. what is the concentration of glucose
If all of the electron groups around a single central atom are bonding, and the same outer atom is bonded to the central atom in each case, is the molecule polar, nonpolar, or does it depend on the identity
Determine How many moles each of Na+ and Cl- are in 0.800 L A physiological saline solution contains 172mEq/ L each of Na+ and Cl-of the saline solution?
What is the molar mass of sodium chloride. In an ionic reaction between sulfate and calcium, the ratio of calcium to sulfate ions is what
Determine the enthalpy change for the oxidation of ethanol to acetic acid, CH3CH2OH() + O2(g) -> CH3COOH() + H2O() given the thermochemical equations below.
Organic chemists rely heavily on the spectroscopic methods of IR and NMR. Explain in great detail why the two methods have to be used in tandem to
Problem- Write the condensed structural formula of the ester formed when each of the following reacts with methyl alcohol. formic acid
Problem- Following are some statements about the structural features of nucleic acids. Identify whether the statement refers to DNA, to RNA, to both, or to neither by dragging the statement into the appropriate bin.
an object made of aluminum has a mass of 8.37 gram. when it was placed in a graduate cylinder containing 20.0 milliter of water, the water level rose to 23.1 milliter. calculate the density and specific gravity of the object.
A freezing point of -5.20?C is recorded for a solution made by dissolving 10.56 g of the compound in 25.0 g of water. Determine the molar mass, and molecular formula of the compound. Assume that the compound is a nonelectrolyte.
osmotic pressure is often used to determine the molar mass of largemolecules however errors can be introduced into the
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