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In 1997 LA County air had carbon monoxide (CO) levels of 15.0ppm. Average human inhales about 15.0 L of air per breath and takes about 20 breaths per minute. Explain how many milligrams of carbon monoxide does the average person inhale in a 6 hour period for this level of carbon monoxide pollution? Presume that the carbon monoxide has a density of 1.2g/L. 15.0 ppm CO means15.0 L CO per 106 L Air.
Draw the structure of the peptide in its predominant ionic form at a)pH 2; and b) pH 8 and determine its net charge at the specified pH values c) draw a titration curve of PH with respect to a dual axis with the equivalents of HCl added and the ne..
what is a general formula that can be used to determine the max capacity for the following- a shell
A solid laboratory sample contains two substances, lead(II) carbonate and potassium carbonate. A 5.000 g sample of this unknown was treated with aqueous nitric acid to dissolve it, then, after further treatment to adjust the acidity
Three liquids of different densities are mixed. Because they are not miscible (do not form a homogeneous solution with one other), they form discrete layers, one on top of the other.
what is the identity of the atom a when a solution containing 634 grams of acl3 was permitted to combine with an excess
To determine the organic material in a dried lake bed, you have determined the percent carbon by mass at two different locations. In order to compare the means of the two different locations, you need to determine whether the standard deviations o..
I- is oxidized by MnO4- in basic solution to yield I2 and MnO2. The coefficient on H2O in the balanced redox reaction will be
A second assay was performed by making a derivative, ammonium phospho-molybdate, which has visible absorption peak at ~ 400nm. From the Beer's Law plot, estimate the concentration of the unknown solution
elemental boron as a gas is produced in one industrial process by heating diboron trioxide with magnesium metal also
This is a second order reaction, first order with respect the NSA and first order with respect to hydroxide ion. Use the data below to calculate the rate constant
A coffee can (with diameter of 6.0 inches, a height of 6.5 inches and a massof 256 g) has a 1 cm diameter hole drilled in the bottom of the can and another drilled in the side. The can is capped, inverted, and completely filled with methane
The electron-domain geometry is tetrahedral. The molecular geometry is trigonal pyramidal. d) The electron-domain geometry is tetrahedral. The molecular geometry is trigonal planar. e) The electron-domain geometry is tetrahedral. The molecular geo..
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