Since we started with 50 mL of the titrant and 32 mL of a 2.5 M standard solution. Using the dilution equation M2 = 2.5 M × 32 mL/50 mL
Titration is a means of determining the concentration of a solution by using another solution of known concentration. The solution of known concentration is called the standard solution.
The titrant is the solution in the flask. We started with 50 mL of this solution, then we added 32 mL of the standard solution. Using the dilution formula;
M2 = 2.5 M × 32 mL/50 mL
Learn more: brainly.com/question/20339399
Answer:
Answers provided for the reactions with explanations in parenthesis
Explanation:
We need to find the approx. equivalent pH so we can choose an indicator.
CH3COONa +strong acid HCl - methyl orange (pH will be about 4.5)
Na2CO3 base ---> strong acid HCl- phenolphthalein (pH will be 7-8) , and then methyl orange (since carbonic acid has 2 equivalence points, it needs two indicators)
Na2C2O4 HCl- methyl orange, and then methyl orange (since oxalic acid has 2 equivalence points, it needs two indicators)
NH4Cl NaOH- Phenolphthalein, since pH = 9.75 approximately
NaOH HCl-Bromothymol blue --> since pH = 7 best for a neutral indicator
Answer:
Nandiyan yan sa binasa mo