Thanks. 1. Define the following terms associated with titrations: a. standard so

Question

Thanks. 1. Define the following terms associated with titrations: a. standard solution b. endpoint c. indicator 2. Write the balanced formula equation and the net ionic equation for the reaction of sodium hydroxide with hydrochloric acid. equation: Net Ionic equation: What is the molarity of a solution prepared by dissolving 2.24 grams of NaOH in enough deionized water to obtain 500.0 mL. of solution? The molar mass of NaOH is 40.0 g 3. Molarity = 4. What is the color of phenolphthalein indicator in: a. acidic solution b. basic solution 5. Calculate the molarity of acetic acid in a vinegar sample, knowing that 5.00 mL. of vinegar requires 43.50 mL of 0.105 M NaOH to just reach the phenolphthalein endpoint in a titration. Molarity =

Explanation / Answer

Ans 1 :
a) Standard Solution : Standard solution is the one that has precise concentration of the substance.

b) endpoint : Endpoint is that point where the indicator changes the colour in the titration.

c) indicator : Indicator such as phenolphthalein is the substance that changes the colour when the titration is complete.

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