A student is asked to standardize a solution of potassium hydroxide. He weighs out 0.996 g potassium hydrogen phthalate (KHC2H404, treat this as a monoprotic acid).
It requires 22.0 mL of potassium hydroxide to reach the endpoint.
A. What is the molarity of the potassium hydroxide solution? M
This potassium hydroxide solution is then used to titrate an unknown solution of nitric acid,
B. If 14.9 mL of the potassium hydroxide solution is required to neutralize 14.9 mL of nitric acid, what is the molarity of the nitric acid solution?
M

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced. be sure your answer has the correct number of significant digits.