Question

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Ar have a total pressure of 1.6 bar. What is the partial 17. A mixture of 100 g of Ne and 10.0 Ne? a) 0.40 bar b) 1.1 bar c) 0.54 bar GP 0.80 bar e) 1.3 bar 18. A sample of N, effuses in 255 s. How long will the same size sample of Cl2 take to effuser c12 a) 388 5 b) 1555 c) 247 s d) 406 5 e) 6455 19. How many Oxygen atoms are there in 52.06 g of carbon dioxide? CO a) 1.018 x 10 b) 7.122 x 10" c) 5.088 x 10 d) 1.424 x 10 e) 6.022 x 10" 20. What volume (mL) of a 5.45 M lead nitrate solution must be diluted to 820.7 ml make a 1.41 M solution of lead nitrate? a) 0.00471 b) 6310 03170 d) 212 e) 0.00936 21. Which of the following has the smallest second ionization energy? a) Mg b) si c) AI d) P e) CI 22. A mole of red photons of wavelength 725 nm has_ kl of energy 4.56 x 10" by 227 c) 165 d) 2.74 x 10-19 e) 6.05 x 10

Answer 1

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