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A standard method for the determination of glucose in serum is reported to have a standard deviation of 0.40 mg/dL. If s = 0.40 is a good approximation of lower case sigma, how many replicate determinations should be made for the mean for the analysis of a sample to be within: a. 0.3 mg/dL of the mean 95% of the time b. 0.2 mg/dL of the mean 95% of the time
Isopropyl alcohol is mixed with water to produce a 31.0% (v/v) alcohol solution. How many milliliters of each component are present
The RUBISCO catalyzed reaction is: a. Exergonic, because Ribulose-,5-biphosphate has enormous energy charge built up from previous phosphorylations
Give the quantitative species inventory for the result of the mixture of the following substances, 2.00 mols Cl2, 1.00 mols Br2, 0.50 mols I2, 0.50 mols NaCl, 1.00 mols NaBr, and 2.00 mols NaI.
the reaction of a particular alcohol with a carboxylic acid is 3.83. What is the calculated yield of the ester?
What percentage of the Sr-90 that was formed in the detonation of the first fission bombs in August 1945 is still present in the environment in August 2032?
A student during an extraction experiment lost track of whether a beaker contained an aqueous solution or an organic solution. How could the student determine which type of solutions was in the beaker by a simple test
A particular brand of gasoline has a density of 0.737 rm g/mL at 25 C. How many grams of this gasoline would fill a 15.1 gal tank?
Calculate the energy per mL if the energy per gram for Methanol (MW = 32g) is 0.83 kcal/gram and for Ethane MW
When gasoline burns, it reacts with oxygen in the air and forms hot gases consisting of carbon dioxide and water vapor. How does the potential energy of the gasoline and oxygen compare with the potential energy of the carbon dioxide and water vapo..
In an excess amount of oxygen, how many grams of CO2 (g) are theoretically produced from the combustion of 901.0 g of glucose [C6H12O6 (s), molar mass of 180.2 g/mol]?
Calculate the specific heat of a metallic element if 314 joules of heat energy are needed to raise the temperature of a 50.0 gram sample from 25 degrees celsius to 50 degrees celsius.
Calculate the number of moles of gas in a 3.24 L basketball inflated to a total pressure of 24.3 psi (pounds per square inch) at room temperature (25 degrees Celsius).
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