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a typical person has 200 mg of cholesterol pr 100 ml of blood. If the total blood volume of an individual is 5 liters, how many grams of total blood cholesterol does the individual contain?
Ethyl chloride vapor decomposes by the first-order reaction C2H5Cl --> C2H4 + HCl The activation energy is 249 kJ/mol and the frequency factor is 1.6 X 10^14 s^-1 The rate constant at 730 K is 2.4 x 10^-4 s^-1. 1)
A 13 gram sample of calcium reacts with bromine to form 24 grams of calcium bromide. How many grams of bromine are used in the reaction?
Because of increasing evidence of damage to the ozone layer, chlorofluorocarbon (CFC) production was banned in 1996. However, there are about 100 million auto air conditioners
M. tuberculosis, the organism that causes tuberculosis, can be completely destoryed by irradiation with UV light with a wavelength of 254 nm. What is the frequency?
Talc (used in talcum powder) has masscomposition 19.2% Mg, 29.6% Si, 42.2% O,and 9.0% H. What is the empirical formula of the compound
2SO2(g) + O2(g) 2SO3(g) Suppose the volume of this system is compressed to one-half its initial volume and then equilibrium is reestablished.
The density of diamond is 3.51 g/cm . The international (but non-SI) unit for weighing diamonds is the "carat" (1 carat = 200 mg exactly.) What is volume of a 0.66 carat diamond?
If a sample of sodium is dropped into a container of water the reaction is:
A 100.0-L flask contains a mixture of NO2 gas and CO gas. If the concentration of NO2 is 5.5 × 105 ppm, and the total pressure is 790 torr, what is the partial pressure of CO in the flask?
A 1.80 M solution of 56 ml is diluted to a volume of 218 milliliters a portion of that solution of 109 milliliters is diluted using 149 milliliters of H2O. determine the final concentration of this solution
Compute the volume of 3M NaOH(aq)aqueous sodium hydroxide needed to neutralize the phosphoric acids and acetic acid in the synthesis of acetyl-ferrocene.
When 24 mL of a 170 mL stock solution containing 1.5 M BaF2 is diluted to 76 mL, what is the concentration of Ba2+ in the new solution
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