When a 0.031M aqueous solution of a certain acid is prepared, the acid is 0.89% dissociated. Calculate the acid dissociation constant Ka of the acid. Round your answer to 2 significant digits.

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.