24 Jun I need help answering these q
I need help answering these questions 2. Adapted from Exercise 102 in Ch. 7 of Introductory Chemistry: As an environmental scientist, you may be asked to help revive lakes that have been acidified by acid rain. Calcium carbonate (limestone) is commonly used for this application. It can neutralize the acids (HNO3 and H2SO4) in acidic lakes by a process called liming. You are asked by local community leaders to explain how this will work. To do so, you must provide the ionic and net ionic equations for the reactions between calcium carbonate and HNO3 and between calcium carbonate and H2SO4 in your report. • Write down the ionic and net ionic equations for the two reactions. • If the lakertworks are often used to communicate stories. Commemorating important events, legends, and myths with images or a series of images to “tell” the story is a narrative device. In your response, discuss how specific works of art convey a narrative (a story). What does the narrative tell us about the culture in which it was made? In your response, discuss how specific works of art and/or architecture communicated stories, and what that narrative tells us about the cultures that made the artwork. Compare and contrast specific art examples from the Neolithic and Ancient Near East eras. Please use specific examples of art works to illustrate your ideas. In your own words, summarize how the artworks are reflective of the cultures that created them. Develop a response of 250 words. Analyze and identify specific historical and visual examples to support your understanding of the topic. Include images with complete identifying information of the specific works of art you chose. Compose your thoughts with careful research and formulate independent conclusions.
contains 1500 kg of HNO3 and 2000 kg of H2SO4, how much calcium carbonate must be added to neutralize the lake? 3. Imagine that you work for a pharmaceutical company that makes aspirin (acetylsalicylic acid). Aspirin is prepared by heating salicylic acid, C7H6O3, with acetic anhydride, C4H6O3. The other product is acetic acid, C2H4O2. C7H6O3 + C4H6O3 C9H8O4 + C2H4O2 The company just bought 2000 kg of salicyclic acid and 4000 kg of acetic anhydride to produce aspirin. You are asked by your supervisor to provide answers to the following questions: • How many moles of salicyclic acid did the company just buy? • How many moles of acetic anhydride did the company just buy? • What is the theoretical yield (in kg) of aspirin that can be produced from the two compounds that the company just bought? • The company cannot produce the maximum theoretical yield of aspirin. What are some possible reasons for this inefficiency?
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