Titration lab 9

calculate the number of moles of NaOH used in the titration

0.00453 moles

calculate the concentration, and M, of the sulfuric acid before dilution

0.0906 M

Calculate the concentration, in M, of the sulfuric acid after dilution (x10)

0.906 M

what is the burette Reading from the following image?

19.15 mL

calculate the number of moles of sulfuric acid used in the titration

2.265 x 10^-3 moles

if the final burette reading is 28.45 mL and the initial burette reading is 5.60 mL what is the titer

22.85 mL

what is the burette reading from the following image

5.10 mL

in today's titration, we are reacting NaOH and H2SO4. for this reaction, what is the pH at the equivalence point?

7

what is the reaction to describe the neutralization reaction of sulfuric acid and sodium hydroxide?

H2SO4 + 2NaOH -> Na2SO4 + 2H2O

The completion of an acid base titration is represented by the endpoint and equivalence point. What is the endpoint

Point where the indicator changes color

A standard solution is a solution of accurately known concentration. what is a standard solution for a titrating sulfuric acid in an acid alkali titration?

an alkaline such as sodium hydroxide

today we are going to perform a titration what is an acid alkali titration

an analytic method

what should we do to reduce the risk when working with concentrated acids and bases?

dilute them

what is the primary function of a burette?

dispense solution and an accurate volume

what do you think we need to do to help the lake ecosystem?

find out the acids concentration so we can neutralize it

why do we use a volumetric flask?

to obtain an accurate and precise volume

in the acid alkali titration, the PH changes quickly from 3 to 10 with equivalence point at PH7. If we use bromothymol blue as an indicator, when will we reach the endpoint?

when the solution turns from yellow to blue