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A bioengineer preparing cells for a cloning experiment bathes a small piece of rat epithelial tissue in a TRIS buffer, (HOCH2)3CNH2. the buffer is made by dissolving 48.0 g TRIS (pkb=5.91) in enough 0.095 M HCl to make 1.00 L of solution.
a) what is the molarity of TRIS?
b) what is the pH of the buffer?
The sample required 3.7 mL of 0.0013 M NaOH to titrate the sample to neutrality. What was the pH of the gastric juice? Hypochloridia is defined as having a stomach pH greater than 4. Was the patient suffering from hypochloridia?
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The flask from part (a) is heated to 900 K, and when the system has comt to equilibrium, the total pressure in the flask reaches 1.814. Find the value of the equilbrium constant for the above reaction at 900 K
a 200 ml stock solution contains 0.9 m cacn2. when 100 ml of the stock solution is diluted to 120 ml how many moles of
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Cars were timed by police radar as they passed in both directions below a bridge. Their velocities (kilometres per hour, numbers of cars in parentheses) to the east and west were as follows
ammonia nh3 kb 1.8 x 10-5 is added to 100 ml of water at room temperature. the vapor pressure of the water above the
Compare and contrast solid-phase DNA synthesis with enzyme-catalyzed DNA synthesis. Please separately describe the similarities and differences between the two.
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