How many grams of manganese would be found
Manganese makes up 1.3 × 10-4 percent by mass of the elements found in a normal healthy body. How many grams of manganese would be found in the body of a person weighing 238 lb? (2.2 lb = 1.0 kg)
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Riding the bike on asphalt on a hot day increases the temperature of the tire to 58°C. The volume of the tire increases by 2.8%. What is the new pressure in the bicycle tire?
Magnesium undergoes a single displacement raction with hydrochlic acid. how many grams of hydrogen gas will be produced from the reaction of 3.00 g of magnesium with 4.00 g of hydrochloric acid? identify the limiting and excess reactants.
What molar ratio of benzoate ion to benzoic acid would be required to prepare a buffer with a pH of 5.20? [Ka(C6H5COOH) = 6.5 × 10-5]
For a "Personal water craft" water is pumped from beneath the craft and discharged out the rear in a 1.25 inch diameter stream at a velocity of 75 ft/sec. Assuming that the craft and rider weighs 650lbs find the force acting on the craft and
Consider the following balanced reaction. What mass (in g) of CO2 can be formed from 288 mg of O2? Assume that there is excess C3H7SH present.
How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? The pKa of acetic acid is 4.74.
For all ionizable amino acid sidechains (sidechains only, please), draw the relevant portion of the acidic form and the basic form, clearly indicating which form is which and the charge on each
A 1.50-g sample of a large biomolecule was dissolved in 16.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C. Calculate the molar mass of the biomolecule. For carbon tetrachloride, the boiling point c
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