electrotlye b) Strong electrolyte C) strong (NH4Cl) d) none ( CH3COCH3 : acetone) e) strong CoSO4 f) none (sucrose) 4.44) K2O (aq) + H2O (l) -> 2KOH(aq)‚ molecular; 2K + + O2- +H2O (l) ->2K + + 2OH- Ionic: O2- (aq) + H2O(l) -> 2OH- (aq)‚ net ionic base: (H+ ion acceptor ) O2- (aq); acid ( H + ion donor) H2O (aq); spectator: K + 4.50 Determine the oxdation number for the indicated elment . a) Ti in TiO2 : +4 x +(2*2) = 0 ‚ x = 4 b)Sn in SnCl3- : +2
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James Joyce James Joyce was born on February 2‚ 1882. He was born in Dublin‚ Ireland. James Joyce’s parents were‚ Mary Jane Joyce and John Joyce. His family was a mid-class family‚ his dad had many different unsuccessful jobs and his mother was an extremely talented piano player. His best subjects in school throughout his whole life were philosophy and languages. In college many of his school papers were published in newspapers and magazines.When James graduated school in 1902 he left Ireland
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0 minutes. 4. [15 points] The rate law for the decomposition of ozone to molecular oxygen 3 O3 (g) −→ 3 O2 (g) is rate = k [O3 ]2 . [O2 ] The mechanism for this process is k1 O3 O + O2 k−1 k 2 O + O3 −→ 2 O2 Derive a rate law from these elementary steps. Clearly state the assumptions you use in the derivation. Explain why the rate decreases with increasing O2 concentration. 5. [15 points] Consider the following parallel reactions k 1 A −→ B k 2 A −→ C
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History Ireland was far from Europe‚ close to England‚ and now it’s torn between the two. Far from Europe meant that only a small assortment of plants and animals managed to colonize the island before melting glaciers flooded any land routes to England and the mainland. One result - no snakes in Ireland. They just didn’t make it here in the short space of time between ice and island. The handful of species that did arrive thrived. The native landscape was dominated by mature oak forests. About
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2 H2O2 → 2 H2O + O2 Although this reaction occurs spontaneously‚ enzymes increase the rate considerably. At least two different enzymes are known to catalyze this reaction: catalase‚ found in animals and protists‚ and peroxidase‚ found in plants. A great deal can be learned about enzymes by studying the rates of enzyme-catalyzed reactions. The rate of a chemical reaction may be studied in a number of ways including: • measuring the rate of appearance of a product (in this case‚ O2‚ which is given
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Riders to the Sea by J.M. Synge Biography John Millington Synge was born on April 16‚ 1871 to a middle class Protestant family. He was educated at private schools in Dublin and studied piano‚ flute‚ violin‚ music theory and counterpoint at the Royal Irish Academy of Music. He was a talented student and attended Trinity College where he studied Irish and Hebrew. During this time Synge encountered the writings of Darwin and developed and interest in the Aran Islands. Reading Darwin coincided with
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made. The desire to work in textile firms provided them with opportunities on supporting their families and saving for their future. Therefore‚ employment opportunities in textile mills made young women to attain social and economic independence (Dublin‚
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Dogfight over Europe: Ryanair Group D Competitive Strategy Dogfight over Europe: Ryanair (A) This case addresses the airline industry’s context after World War II until late 1980. The case is mainly focused on Ryanair’s entrance to the airline market and its road to expansion. Brief description of airline industry context: Initially‚ the main players was Europe’s national governments‚ as a result of merging small private-owned airlines into national “flag carriers” (service
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keep an extra significant figure in the result • Example A: (3.9)2 = 15.2 • Example B: 0.0144 = 0.120 • Example C: (4 x 101)2 = 1.6 x 103 Exercises • The temperature in the stratosphere is ‐18oC. Calculate the root‐mean‐square speed of N2‚ O2 and O3 molecules in this region.(molecular mass of N2 = 28 g mol‐1‚ O2 = 32 g mol‐1‚ O3 species = 48 g mol‐1) rms = For N2‚ the molar mass of N2 = 28 g mol‐1 rms = . . . J = kg m2s‐2 = 227150.3571 = 2.27x10 ms‐1 =4.7x102 ms‐1
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her desire to move to Buenos Aries with Frank and remains in Dublin to take care of the house. Eveline longed to be saved from her abusive father and hard life of poverty. Looking out a window of her dusty home she hears someone on the street playing an organ that reminds her of the promise she made to her mother to lead a domestic life‚ which was expected from women of that time. When her opportunity arrives to leave her life in Dublin behind‚ Eveline “clutched the iron in frenzy” as Frank tried
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