Procedure:
1. Pipette 25 cm3 of ethanoic acid into a conical flask
2. Titrate against 0.1M sodium hydroxide solution in the burrette, using phenolphthalein as indicator.
3. Pipette further 25 cm3 of ethanoic acid into the solution after titration and mix throughly.
Questions:
1. what is...
1. (a) If{an} is a covergent sequence and limit of an ^2=0, prove that limit of an=0.
(b) If limit of an ^2=L>0 , give an example to show that limit of an =√L may not be true.
2. For any x≧0, show by binomial theorem, that
(1+x)^n ≧〔n(n-1)x^2〕/2 for any positive integer n.
Please help me the following questions
In an experiment to determine Kc , the equilibrium constant for the reversible reaction
2HI<==> H2 + I2
0.21 g of hydrogen iodide was heated at 530℃ in a bulb of volume 100 cm^3 until equilibrium was reached . This bulb was broken under potassium...