acids

Question 1

what colour is phenolphthaelein in acid

Answer 1

colourless

Question 2

what colour is phenolphthealeinin alkali

Answer 2

pink in alkali

Question 3

why do u rince the pippete and burrete

Answer 3

removed any deionised water that would effect the end value

Question 4

why is a conical flask used

Answer 4

no solution spills whne swirling

Question 5

why do u uses deionised water to wash the side at the end point

Answer 5

ensure all reagents are in solution

Question 6

if the pipetete has a air bubble inside the jet is titre higher or lower

Answer 6

higher than expected as jet is not filled

Question 7

what is the equation for uncertainity

Answer 7

margin of error divided by quatity measured times 100

Question 8

what can we do to reduce percentage uncertainity

Answer 8

use a large quatity , increase the quantity measured

Question 9

what is an base

Answer 9

a substances that neutralised an acid and is a H+ accepter

Question 10

what is a alkali

Answer 10

a soluabel base that releases OH- ions

Question 11

what is an acid

Answer 11

release h+ ions in a aquaous solution

Question 12

what is a strong acid

Answer 12

complety dissociate when dissolved in water

Question 13

name the flask used in titration

Answer 13

volumentric