3 Post- + Pre-Lab Answer Keys

3 Post- + Pre-Lab Answer Keys - ANSWER KEY EXPERIMENT#3...

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1 ANSWER KEY: EXPERIMENT #3 - Thermochemistry PRE-LAB QUESTIONS 1. (0 points) MSDS info: Sodium hydroxide (NaOH) is caustic, and causes severe burns in the eyes and on the skin. Ingestion of NaOH causes severe gastrointestinal tract burns and can be fatal. Inhalation of NaOH causes severe respiratory tract irritation with coughing and burning pain, and may lead to pulmonary edema. In the case of contact, flush immediately with plenty of water for at least fifteen minutes. Remove contaminated clothing. Get immediate medical attention for any eye contact, or for significant skin burns. Speedy action is critical. Note: Most of these same cautions also apply to hydrochloric acid (HCl). 2. (2 points) q water = (m water c water T water ) = –q metal q metal = (m c metal T) T water for the cold water would be (slightly) smaller than it should be (i.e. the water would not be heated by the “cooled” metal as much as it should be). The calculated c
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3 Post- + Pre-Lab Answer Keys - ANSWER KEY EXPERIMENT#3...

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