Could someone help me fill in the blanks? Complete the following table of Trial

Question

Could someone help me fill in the blanks? Complete the following table of Trial 1 (See Report Sheet.) for determining the molar occur. NaOH solution, followed by the determination of the molar concentration of a monopodia the experimental procedure. Record calculated values with the correct number of significant figure. A. Standardization of a Sodium Hydroxide Solution Tared mass of KHC_8H_4O_4(g) Molar mass of KHC_8H_4O_4(g/mol) Moles of KHC_8H_4O_4 (mol) Show calculation. Buret reading, initial (mL) Buret reading, final (mL) Volume of NaOH dispensed (mL) Molar concentration of NaOH solution (mol/L) Show calculation. B. Molar Concentration of an Acid Solution Volume of acid solution (mL) Buret reading, initial (mL) Buret reading,/ma/(mL) Volume of NaOH dispensed (mL) Molar concentration of NaOH solution (mol/L) Moles of NaOH dispensed (mol) Show calculation. Molar concentration of acid solution (mol/L) Show calculation.

Explanation / Answer

a. Titration

A : standarisation of NaOH solution

1. g of KC8H4O4 = 0.411 g

3. moles of KC8H4O4 = 0.411 g/204.44 g/mol = 0.002 mol

6. Vol of NaOH used = 19.90 - 4.2 = 15.7 ml

7. Molarity of NaOH solution = 0.002/0.0157 = 0.128 mol/L

B. Molarity of acid solution

1. Volume of acid solution = 25 ml

4. NaOH volume used = 20.47 - 3.70 = 16.77 ml

6. moles of NaOH = 0.128 M x 0.01677 L = 0.0021 mol

7. Molar concetration of acid solution = 0.0021 mol/0.025 L = 0.086 mol/L

6. b. For acid concentration of 0.0922 M and 0.0856 M

a. average concentration of acid solution = 0.0889 mol/L

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