A person takes `6.1 g` of an anta-acid tablet comprising bicarbonate ion at 20.8%. The volume of `CO_(2)` evolved at (1 atm and `25^(@)C`) in the stomach (on neutralisation) multipled by a factor of '10' will be `x L`. Calculate the approximate (integer) value of `x`.

In a sample of sodium carbonate some sodium sulphate is also mixed. 1.25 g of this sample is dissolved and the volume made up to 250 mL. 25 mL of this solution neutralises 20 mL of (N)/(10) sulphuric acid. Calculate the percentage of sodium carbonate in the sample.

A 10 mg effervescent tablet containing sodium bicarbonate and oxalic acid release 0.25 ml of CO_2 at T=298.15 K and p=1 bar. If molar volume of CO_2 is 25.0L under such condition, the number of mole of sodium bicarbonate in each tablet is 10^(-x) . What is numerical value of x. [Molar mass of NaHCO_3 =84 g mol^(-1) ]

A 10 mg effervescent tablet containing sodium bicarbonate and oxalic acid release 0.25 ml of CO_2 at T=298.15 K and p=1 bar. If molar volume of CO_2 is 25.0L under such condition, the number of mole of sodium bicarbonate in each tablet is 10^(-x) . What is numerical value of x. [Molar mass of NaHCO_3 =84 g mol^(-1) ]

The function f and g are defined by f(x)=6x+8, g(x)=(x-2)/(3) . Calculate the value of gg(1)/(2)

A sample of sodium carbonate contains impurity of sodium sulphate. 1.25 g of this sample are dissolved in water and volume made up to 250 mL. 25 mL of this solution neutralise 20 mL of N/10 sulphuric acid. Calculate the percentage of sodium carbonate in the sample.

40 mg of gaseous substance ( X_(2) ) occupies 4.8 mL of volume at 1 atm and 27^(@) C. Atomic mass of element X is : (R:0.08 atm L/mole- k )

A 10 mg effervescent tablet containing sodium bicarbonate and oxalic acid release 0.25 m l of CO_(2) at T = 298.15 k and p = 1 bar. If molar volume of CO_(2) is 25.0 L under such condition, what is the percentage of sodium bicarbonate in each tablet? [Molar mass of NaHCO_(3) = 84 g mol^(-1) ]

A sample of certain mas s of an ideal polyatomic gas is expanded against constant pressure of 1 atm adiabatically from volume 2L , pressure 6 atm and temperature 300K to state where its final volume is 8L . Then calculate entropy change (in J/k) in the process.(Neglect vibrational degress of freedom)[1 L atm = 100 J ,log 2 =0.3 , log 3 = 0.48 , log e = 2.3] (approximate integer)

A sample of certain mas s of an ideal polyatomic gas is expanded against constant pressure of 1 atm adiabatically from volume 2L , pressure 6 atm and temperature 300K to state where its final volume is 8L . Then calculate entropy change (in J/k) in the process.(Neglect vibrational degress of freedom)[1 L atm = 100 J ,log 2 =0.3 , log 3 = 0.48 , log e = 2.3] (approximate integer)