A 215 mL sample of a 0.500 M NaCl solution with an initial pH of 7.00 is subjected to electrolysis. After 15.0 minutes, a 10.0 mL portion (or aliquot) of the solution was removed from the cell and titrated with 0.100 M HCl solution. The endpoint in the titration was reached upon addition of 22.8 mL of HCl. Assuming constant current, what was the current (in A) running through the cell?
Exam 2 Review World Civilization 1 I. Multiple Choice: Chapter 5 El Nino, La Nina p.126 Big game animals and tools in America p.127, 130 “White shaman” in America p.128 Domesticated plants in America p.129 Domesticated animals in America p.130 Quipu p.131 Chavin, location and agriculture p.132-133 Textile fiber in the Andes p.130 Ornamental objects in Mesoamerica p.136 Olmec environment p.136 Olmec writing p.139 Sequence of the settlement location of Olmec p.136-138 Adena and Hopewell cultures p.139-140 Language of Oceania p.141 Location of Lapita culture p.141-142 Locations of Polynesia, Micronesia, and Melanesia p.142-143 Plants in Oceania p.143 Lapita ware p. S5-5 Chapter 6 Crops in the middle Nile area p.152 Weather patterns in North Africa p.153 Establishment of Meroe p.153-155 Meroe’s iron working p.154-155 Aksum’s religion p.155-156 Exhaustion of Meroe’s iron working p.155 Aksum’s imperialist venture p.156 Migration direction after the Sahara drying up p.157 Agriculture preparation in the areas south of the Sahara p.158 Crops in the South Sahara p.158 Migration route of Bantu p.159-160 Olmec and Maya p.164 Mayan calendar p.166-167 Chinampas p.167 Mayan Ball Game p.170-171 Imagination of the feathered Serpent God p.173-174 Moche terra-cotta portrait p.174 Puquios p.175-176 Nazca geoglyphs p.176 II. Essay Question: 1. What did Thor Heyerdahl argue and do to challenge the identification of the origin settlers of Polynesia What were the mixed receptions What is the conclusion of the article Provide details and examples in your analyses. p.146 2. Compare the political systems and boat constructions of Vikings and Polynesians. Provide details and examples to explain their major characters/features. p.147, 152 in article “Vikings and Polynesians: Exploring New Worlds” (The article is available in the content of D2L) 3. Identify the two human attempts based on which our modern society was to be built. What was the impact of the combination of these two attempts on the human society After what events did the “great divergence” happen Describe the relationship between European and Eastern (India and China) countries when the “great divergence” happened in Europe. p. 460-461 (before chapter 16)