A 5.65 g sample of a weak acid with Ka = 1.3 x 10-4 was combined with 5.20 mL of 6.10 mol L-1 NaOH and the resulting solution was diluted to 750 mL.
The measured pH of the solution was 4.25. What is the molar mass of the weak acid​

Suggest two reasons why irrigation is important for human development of the desert (4 marks)

Canada plays an important role in the global community in all of the following ways except by a. acting as a superpower with influence over europe and asia. b. promoting arms control and disarmament. c. working with the commonwealth of nations to promote trade. d. promoting trade with japan and other asian countries.

Select the best hypothesis explaining why countries may have preferred communism. communism promised jobs after the insecurities of war. communists forced the people to do what they said. communism was fueled by a dislike for democracy. communism provided economic freedom for businesses and workers.