1.What is the standard solution being used in this lab?2.What is the identity of the substance with unknown concentration?3.What solution and how much of it will be placed into the buret?4.What equipment will you use to add the solution to the buret?5.What solution and how much of it will be placed into the Erlenmeyer flask per trial6.What is the indicator being used in this lab?7.What color is the indicator in an acid, a base, a neutral substance?8.What increment of NaOH will you add to the HCl at first?9.How will you know to start adding smaller increments of NaOH at a time?10. How will you know your titration is complete?11. How will you clean the buret when you have completed your lab? ? Procedure: 1. Set up the ring stand, buret, and buret clamp as shown. Make sure that the buret remains vertical at all times. 2. Obtain ~20.0 ml of 0.50 M NaOH in a small beaker. Carefully add all of the NaOH to the buret using the funnel (do not pour above eye level, lower the buret). You will need to drain a small amount of the NaOH from the buret to fill the tip (drain it into the NaOH beaker). Record the initial buret reading for Trial 1. Remember to measure at the bottom of the meniscus. 3. Obtain ~32.0 ml of ? M HCl in a beaker. Add precisely 15.0 mL of ? M HCl to the Erlenmeyer flask using a graduated cylinder (save the rest for the second trial).
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- Fall '17