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In 1997 LA County air had carbon monoxide (CO) levels of 15.0ppm. Average human inhales about 0.50 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 carbon monoxide has a density of 1.2g/L.
How many grams of the K2C2O4XH2O in the salt mixture remain unreacted (in excess). What is the percent by mass of each salt in the mixture
A student prepared the Ni^2+ standar solution and obtained the following buret readings for solution #2, Calculate the concentration of Ni^2+ in the resulting solution.
Use the three-step method described in the module to predict the actual precipitates which form (if such is the case) when the following solutions are mixed
In the following experiment, the water in the glass is stirred by slowly lowering a weight (m=3kg) through a series of pulleys. If the 3kg weight is lowered 10m, the stirrer spins, but eventually all of the kinetic energy of the stirrer is turned ..
If 108.1 mL of water is shaken with a gas at 2.94 atm, it will dissolve 0.00270 g of the gas. Estimate the Henry's law constant for the gas in water in units of g L-1 atm-1.
Determine the ksp magnesium hydroxide where the solubility of Mg(OH)2 is 1.4x 10-4
A graduated cylinder contains 31.0 of water. What is the new water level after 38.0 of silver metal is submerged in the water?
.56 g of a specific gas are held at 101 degrees Celcius and 800 torr in a volume of 285 mL. Determine the molecular weight of the gas.
If the highest possible oxidation state for the halogens is +7, and the lowest possible is -1 which of the following could not disproportionate?
Conformational studies on ethane-1,2-diol (HOCH2-CH2OH) have shown the most stable conformation about the central C-C bond to be the gauche conformation, which is 9.6 kJ/mol (2.3 kcal/mol) more stable than the anti conformation
If the heat of combustion for a specific compound is -1100.0 kJ/mol and its molar mass is 75.49 g/mol, how many grams of this compound must you burn to release 390.70 kJ of heat
magnesium oxide decomposes into magnesium and oxygen. if12.09 g of magnesium oxide decomposes to form7.29 g of
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