If equimolar mixture of NaOH and `Na_2CO_3` weight 4g then weight of NaOH is:

4g equimolar mixture of NaOH and Na _(2) CO_(3) contains x g of NaOH and y g of Na _(2) CO_(3). The value of x is _____________g .

On heating 0.01 mole of equimolar mixture of CaCO_3 and Na_2CO_3 volume of CO_2(g) measured at NTP evolved is-

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.

10 g of a mixture of NaHC_2O_4 and Na_2C_2O_4 on heating gave 6.12 g of Na_2CO_3 . Another 10 g of the mixture was dissolved in 1.0 L of solution. 25" mL of " this solution was titrated with 0.1 N NaOH. Find the volume of NaOH required.

4.0 g of NaOH contains

conductometric titration curve of a equimolar mixture of a HCl and HCN with NaOH(aq) is :

On heating the mixture of NaOH and CO at 483 K the product formed is :

Molality of NaOH is 1.25. Percent by weight of NaOH is