8.Calculation

7/23/2019 8.Calculation

1/7

CALCULATIONS

Standardization of sodium hydroxide solution.

Titration 1 Titration 2 Titration 3

ass of a !ea"er #$% 11&.'2' 111.(&( 11).*(*

ass of a !ea"er + ,- #$% 11/.&*2 113.1(/ 11(.'((

ass of ,- 1.*'2 1.*'2 1.*'1

0olume of NaO- to

neutralise the ,- solution

#mL%

12.1' 12.3' 12.('

olarity of sodium hydroxide solution in eah titration.

Titration 1

Mole of KHP used in titration.

No. of mole of ,-C/-)O)

1.*'2$ ,-C/-)O) x 1mol ,-C/-)O)

2').2$ ,-C/-)O)

'.''&3**( mol ,-C/-)O)

Moles of NaOH required to neutralize the moles of KHP.

No. of mole of NaO-

'.''&3**( mol ,-C/-)O) x 1mol NaO-

1 mol ,-C/-)O)

'.''&3**( mol NaO-

Molarity of NaOH solution.


2/7

olarity mol NaO-

Litre of solution

'.''&3**( mol NaO-

'.'121' L NaO-

'.('& NaO-

Titration 2



1.*'2$ ,-C/-)O)x 1mol ,-C/-)O)

2').2$ ,-C/-)O)

'.''&3**( mol ,-C/-)O)


No. of mole of NaO-

'.''&3**( mol ,-C/-)O) x 1mol NaO-

1 mol ,-C/-)O)

'.''&3**( mol NaO-

olarity mol NaO-

Litre of solution

'.''&3**( mol NaO-

'.'123' L NaO-

'.*/' NaO-

Titration 3


3/7



1.*'1$ ,-C/-)O)x 1mol ,-C/-)O)

2').2$ ,-C/-)O)

'.''&3*'( mol ,-C/-)O)


No. of mole of NaO-

'.''&3*'( mol ,-C/-)O) x 1mol NaO-

1 mol ,-C/-)O)

'.''&3*'( mol NaO-

olarity mol NaO-

Litre of solution

'.''&3** mol NaO-

'.'12(' L NaO-

'.*/3) NaO-

Averae molarity

'.('&+'.*/'+'.*/3)

3

'.*() NaO-

!al"ulation for determinin the a"eti" a"id "on"entration in vinear.


4/7

Titration 1 Titration 2

0olume of NaO- re4uired to

neutralize 5ine$ar #mL%

(.3' (.1'

Titration 1

Moles of NaOH that rea"ted.

(.3' mL of NaO- x 1L

1'''mL

'.''(3 L NaO-

'.''(3 L NaO- x '.*() mol NaO- solution

1L

'.''3&( mol NaO-

The mole of !H2!OOH neutralized #y moles of NaOH.

'.''3&( mol NaO- x 1 mol C-3COO-

1 mol NaO-

'.''3&( mol C-3COO-

Molarity of the !H3!OOH solution.

1' mL C-3COO- x 1L

1'''mL

'.'1 L C-3COO- solution

olarity#%

'.''3&( mol C-3COO-


5/7

'.'1L solution

'.3&( C-3COO-

The mass of a"eti" a"id solution.

'.'1mL C-3COO- x '.3&( C-3COO- x ('.'( $ C-3COO-

1L solution 1 mol

'.22*( $ C-3COO-

1' mL C-3COO- solution 1'.'$ C-3COO- solution

Per"entae of a"eti" a"id in the solution

erenta$e !y mass of C-3COO-

'.22*( $ C-3COO- x 1''6

1'.' C-3COO-

2.2*(6 C-3COO-

Titration 2

Moles of NaOH that rea"ted.

(.1' mL of NaO- x 1L

1'''mL

'.''(1 L NaO-

'.''(1 L NaO- x '.*() mol NaO- solution

1L

'.''3(3/ mol NaO-

The mole of !H2!OOH neutralized #y moles of NaOH.


6/7

'.''3(3/ mol NaO- x 1 mol C-3COO-

1 mol NaO-

'.''3(3/ mol C-3COO-

Molarity of the !H3!OOH solution.

1' mL C-3COO- x 1L

1'''mL

'.'1 L C-3COO- solution

olarity#% '.''3(3/ mol C-3COO-

'.'1L solution

'.3(3/ C-3COO-

The mass of a"eti" a"id solution.

'.'1mL C-3COO- x '.3(3/ C-3COO- x ('.'( $ C-3COO-

1L solution 1 mol

'.21/* $ C-3COO-

1

' mL C-3COO- solution 1'.'$ C-3COO- solution

Per"entae of a"eti" a"id in the solution


7/7

erenta$e !y mass of C-3COO-

'.21/* $ C-3COO- x 1''6 2.1/*6 C-3COO-

1'.' C-3COO-

Averae molarity of a"eti" a"id $ !H3!OOH % &.3'( ) &.3(* % &.3'& M

2

Averae +er"entae #y mass of a"eti" a"id in vinear $ !H3!OOH % 2.2,()2.1-,

2

% 2.221

8.Calculation

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