Question

EXTRA CREDIT B MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The concentration of ozone in a sample of air that has a partial pressure of Oz of 0.53 torr and a total pressure of air of 695 torr is A) 0.076 B) 0.76 C) 1.3 10- 3 D ) 7.6 102 E) 1.3 - ppm. 2) Why does the upper atmosphere contain only very little dissociated nitrogen? A) Nitrogen atoms are extremely reactive and so react with other substances immediately upon their formation. B) The bond energy of nitrogen is very high and it does not absorb radiation very efficiently. C) Most of the nitrogen is in the troposphere and not in the upper atmosphere. D) The dissociated nitrogen very rapidly diffuses out of the atmosphere and into space. E) There is no N2 in the upper atmosphere. SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 3) in the purification of drinking water, the filtered water is made basic by adding 3) then particles and bacteria are captured by adding Al2(SO4)3. 4) The most abundant component of air is

Answer 1

We know that Parts per million (PPM) ppm mass of Solute component - X106 Total mass of solution Кеңе - PPm = Partial pressure of Oz - xloo Total pressure of air From the data partial pressure of Oz = 0.53tory Total pressure of air = 6astorf em z 0.53 toy x 106 695 torr = 0.00076X166 = 7.6810² PPM concentration of ozone = 7.680 one = 7.68 10²ppm Answer: D 7.6810 PPM