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Approximate the percent increase in waist size when a 155 lbs person gains 40 lbs of fat. Assume the volume of a person can be modeled by a cylinder that is 4 ft tall. The average denisty of a human is 1g/cm3 and the average density of fat is .918 g/cm3.
A 1.784 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution.
whats the ph of a solution of 1000 mg of vitamin C (176.1 g/mol) in water (Ka = 8*10^5) diluted to 254 mL
Calculate the boiling point of a solution prepared by dissolving 70.0 g of naphthalene, C10H8 (a nonvolatile nonelectrolyte), in 220.0 g of benzene, C6H6. The Kb for benzene = 2.53°C/m. The boiling point of pure benzene is 80.1°C.
Sodium-24 is used to treat leukemia and has a half-life of 15 hours. A patient is injected with a salt solution containing sodium-24. What percentage of the 24Na remained after 48 hours
calculate the detection limit of this reaction for each halide, the value below which there will be no observed reaction.
Calculate the activity coefficient of glucose in this solution if the solution freezes at -0.66 C.
What is the maximum body accumulation of methylmercury at a constant ingestion rate of 4 mg of mercury per day?
A sample of gas occupies 175ml at 10C and 750torr. What volume will the gas have at 25C and 790 torr?
What experimental difficulty would you encounter if you had neglected to include a drying step before evaporation
What wavelength of light would you report in units of nm, if the light had a wavelength of 7.60 x 10-10 m?
For every molecule of PM that is produced, one molecule of acrolein is formed. If acrolein is not used to cure cancer, what might happen to the acrolein?
How much energy must be supplied to break a single 6Li nucleus into separated protons and neutrons? (masses: 6Li, 6.01347; 1H, 1.00728; 1n, 1.00867 amu)
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