o https://digital.wwnorton.com/38772 80% 09/16/18 92% alejeeman@mix.wvu.edu This

Question

o https://digital.wwnorton.com/38772 80% 09/16/18 92% alejeeman@mix.wvu.edu This is a Numeric Entry question/ It is worth 1 point / You have unlimited attempts/There is no attempt penalty 11 Question (1 point) a See page 646 Nitrous oxide (N2O) is used as an anesthetic (laughing gas) and in aerosol cans to produce whipped cream. It is also a potent greenhouse gas. T decomposition of N2O is first order. It decomposes slowly to N2 and O2 he 2N20(g)-2N2(g) + O2(g) 6th attempt il see Periodic Table 0 See Hint How many half-lives will it take for the concentration of the N20 to reach 30% of its original concentration? 1.734 5th attempt 5:43 PM

Explanation / Answer

Answer

1.74 half lives

Explanation

Fraction of N2O remaining = 0.30

(1/2)n = 0.30

where, n = number of half lives

nlog(0.5) =log (0.30)

- n 0.3010 = - 0.5229

n = 1.74

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