Home
Class 12
CHEMISTRY
50 " mL of " a solution containing 1 g e...

50 " mL of " a solution containing 1 g each of `Na_2CO_3`, `NaHCO_3` and `NaOH` was titrated with N HCl. What will be the titre value if:
(a). Only phenolphthalein is used as an indicator?

A

35 ml

B

`32.5` ml

C

`24.5` m

D

`34.4` ml

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

20mL of 0.1M solution of compound Na_2CO_3 .NaHCO_3. 2H_2O is titrated against 0.05 M HCI . x mL of HCI is used when phenolphthalein is used as an indicator and y mL of HCI is used when methly orange is the indicator in two separate titrations. Hence (y-x) is :

500 " mL of " a solution contains 2.65 g of Na_2CO_3 and 4 g of NaOH . 20 " mL of " this solution titrated each time against (N)/(10)H_2SO_4 . Find out the titre value if (a). Methyl orange is taken as an indicator (b). Phenolphthalein is taken as indicator.

20 mL of 0.1 M solution of compound NaCO_(3).NaHCO_(3).2H_(2)O is titrated against 0.05 M HCL. X mL of HCL is used when phenolphthalein is used as an indicator and y mL of HCL is used when methly orange is the indicator in two separate titrations. Hence (y-x) is:

In the study of titration of NaOH and Na_(2)CO_(3) . NaOH and NaHCO_(3) , Na_(2)CO_(3) and NaHCO_(3) , phenophthalein and methyl orange are used as indicators. (a). When phenolphthalein is used as an indicator for the above mixture: (i). It indicates complete neutralisation of NaOH or KOH (ii). It indicates half neutralisation of Na_(2)CO_(3) because NaHCO_(3) is formed at the end point. (b). When methyl orange is used as an indicator for the above mixture (i). It indicates complete neutralisation of NaOH or KOH (ii). It indicates half neutralisation of Na_(2)CO_(3) because NaCl is formed at the end point. Q. A 10 g moxture of NaHCO_(3) and KOH is dissolved in water to make 1000 mL solution. 100 " mL of " this solution required 50 " mL of " 0.2 M HCl for complete neutralisation in the presence of phenolphthalein as indicator What is the percentage of NaHCO_(3) in the mixture?

In the study of titration of NaOH and Na_(2)CO_(3) . NaOH and NaHCO_(3) , Na_(2)CO_(3) and NaHCO_(3) , phenophthalein and methyl orange are used as indicators. (a). When phenolphthalein is used as an indicator for the above mixture: (i). It indicates complete neutralisation of NaOH or KOH (ii). It indicates half neutralisation of Na_(2)CO_(3) because NaHCO_(3) is formed at the end point. (b). When methyl orange is used as an indicator for the above mixture (i). It indicates complete neutralisation of NaOH or KOH (ii). It indicates half neutralisation of Na_(2)CO_(3) because NaCl is formed at the end point. Q. 1 L solution of Na_(2)CO_(3) and NaOH was made in H_(2)O . 100 " mL of " this solution required 20 " mL of " 0.4 M HCl in the presence of phenolphthalein however, another 100 mL sample of the same solution required 25 " mL of " the same acid in the presence of methyl orange as indicator. What is the molar ratio of Na_(2)CO_(3) and NaOH in the original mixture.

200 " mL of " a solution of a mixture of NaOH and Na_2CO_3 was first titrated with 0.1 M HCl using phenolphthalein indicator. 17.5 " mL of " HCl was required for the same HCl was again required for next end point. Find the amount of NaOH and Na_2CO_3 in the mixture.

0.848 g aqueous solution of a mixture containing Na_(2)CO_(3) NaOH, and an inert matter is titrated with (M)/(2) HCl. The colour of phenolphthalein disappears when 20 " mL of " the acid has been added. Methyl orange is then added and 8.0 mL more of the acid is requried to give a red colour to the solution. The percentage of Na_(2)CO_(3) is

A mixture contains 1.0 mole each of NaOH, Na_(2) CO_(3) and NaHCO_(3) . When half of mixture is titrated with HCl ,it required x mole of HCl in presence of phenolphthalein. In another experiment ,half of mixture required y mole of same HCl in presence of methyl orange. Find the value of (x+y).

The pH of a solution obtained by mixing 50 mL of 0.4 N HCl and 50 mL of 0.2 N NaOH is

0.1g of a solution containing Na_(2)CO_(3) and NaHCO_(3) requires 10mL of 0.01 N HCl for neutralization using phenolphthalein as an indicator, mass% of Na_(2)CO_(3) in solution is: