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What mass of salicylic acid is needed to produce one extra strenght tablet of aspirin if the reaction has 60% yield. Please show work and correct sig figs.
element mercury has a density of 13.6 g/ml. how many kg of mercury could occupy a volume of 500ml?
The O-H stretch of a concentrated solution of an alcohol occurs at a lower frequency than the O-H stretch of a dilute solution.
a titration curve for H3PO4 (triprotic acid) and a mixture of three weak acids?
The resulting solution is then titrated with 0.1041 M sodium hydroxide, and 12.39 mL of the sodium hydroxide solution are needed to reach a phenolphthalein end point.
A sample of a radioisotope shows an activity of 999 disintegrations per minute due to beta decay. If after 1.10 years the activity is 952 disintegrations per minute, what is the half-life of this radioisotope
Assuming that equal numbers of moles of each were released into the air at ground level, rank these four compounds in terms of their potential to catalytically destroy ozone in the stratosphere. Explain
The radius of the Earth is approximately 6370 km. if one could dig down straight towards the center of the Earth, one would find that the innermost 3480 km (the core) has an average density of about 11.g/cm^3.
Rate of Initiated Radical Polymerization, What are the basic steps of initiated radical polymerization? Derive the rate expression of initiated radical polymerization
When titrating 0.15 M HCl with a calcium hydroxide solution of unknown concentration, 35 mL of acid are required to neutralize 25 mL of the base.
At 25 c and 1.0 atm, 0.25 g of a gas dissolves in 1.00 L of water. What mass of the gas dissolves in 1.00 L of water at 25 c and 3.0 atm?
a particular sample of rainwater is 0.2 ppb. Assume the density of rainwater is close to 1.00 g/mL and find the molar concentration of C20H42.
Write and balance the equation for the reduction of iodate by hydrogen sulfite ions to give iodide and sulfate in basic
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