Home
Class 12
CHEMISTRY
What is the pH of the NaOH solution when...

What is the pH of the NaOH solution when 0.04 g of it is dissolved in water and made to 100 ml solution?

A

2

B

1

C

13

D

12

Text Solution

Verified by Experts

The correct Answer is:
D
Weight of NaOH = 0.04g
Volume of solution = 100 ml
Concentration of `OH^(-)(M) = (Wt)/(Mwt) xx 1000/v("in "ml) = 0.04/40 xx 1000/100 = 10^(-2) M`
`P^(OH) = -"log"[OH^(-)] = -"log" 10^(-2) = 2`
`p^(H) = 14 - P^(OH) = 14 - 2 = 12`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING AND STRUCTURE OF MOLECULES

    SIA PUBLICATION|Exercise MCQ|48 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    SIA PUBLICATION|Exercise MCQs|36 Videos

Similar Questions

Explore conceptually related problems

Calculate the pH of the following solutions. a. 0.37g fo Ca(OH)_(2) dissolved in water to give 500 ml solution b. 0.3 g of NaOH dissolved in water to give 200 ml solution c. 0.1825% HCl aqueous solution d. 1 ml of 13.6 M HCl is diluted with water to give 1 litre solution.

Calculate the pH of the following solution : (a) 2g of TlOH dissolved in water to give 2 litre of solution. (b) 0.3g of Ca(OH)_(2) dissolved in water to give 500mL of solution. (c) 0.3g of NaOH dissolved in water to give 200mL of solution. (d) 1mL of 13.6M HCl is diluted with water to give 1 litre of solution.

0.84 g. of an acid of Molecular weight 225 is present in 100ml of the solution. 25ml of this solution required 28ml of N/10 NaOH solution for complete neutralisation. The basicity of the acid is

What will be present in th solution when 50 of ml 0.1 M HCl is mixed with 50 ml of 0.1 M NaOH soltion?

0.84 g of a acid (mol wt. 150) was dissolved in water and the volume was made up to 100 ml. 25 ml of this solution required 28 ml of (N/10) NaOH solution for neutralisation. The equivalent weight and basicity of the acid

0.84 g, of an acid of Molecular weight 225 is present in 100ml of the solution. 25ml of this solution required 28 ml of N/10 NaOH solution for complete neutralisation. The basicity of the acid is

50 ml of 0.2 N H_(2) SO_(4) is mixed with 100 ml of 0.4 N KOH solution and 1.85 lit of distilled water is added . The pH of resulting solution is (log 1.5 = 0.176)

0.1 gram mole of urea is dissolved in 100g. of water. The molality of the solution is

SIA PUBLICATION-CHEMICAL EQUILIBRIUM AND ACIDES-BASES-MCQ
  1. On increasing temperature, the equilibrium constant of exothermic and ...

    Text Solution

    |

  2. What is the pH of the NaOH solution when 0.04 g of it is dissolved in ...

    Text Solution

    |

  3. When one mole of A and one mole of B were heated in a one litre flask ...

    Text Solution

    |

  4. If the solubility of Ca(3)(PO(4))(2) in water is 'X' mol L(-1), its so...

    Text Solution

    |

  5. In a reaction,A+B hArr C+D 40% of B has reacted at equilibrium, when 1...

    Text Solution

    |

  6. If the ionic product of Ni(OH)(2) is 1.9 xx 10^(-15), the molar solubi...

    Text Solution

    |

  7. The degree of ionization of 0.10 M lactic acid is 4.0% The value of K(...

    Text Solution

    |

  8. The pH of a buffer solution made by mixing 25 mL of 0.02 M NH(4)OH and...

    Text Solution

    |

  9. The pK(a) values of four carboxylic acids are given below. Identify t...

    Text Solution

    |

  10. Which one of the following statements is not correct?

    Text Solution

    |

  11. If the equilibrium constant for the reaction 2AB hArr A(2) + B(2) is 4...

    Text Solution

    |

  12. The pH of 0.05 M acetic acid is (K(a) = 2 xx 10^(-5))

    Text Solution

    |

  13. If the equilibrium constant for the reaction,H(2)(g) +I(2)(g) hArr 2HI...

    Text Solution

    |

  14. The pH of 0.01 M solution of acetic acid is 5.0. What are the values o...

    Text Solution

    |

  15. pH of a buffer solution decreases by 0.02 units when 0.12 g of acetic ...

    Text Solution

    |

  16. The equilibrium constant for the given reaction is 100. N(2)(g) + 2O(...

    Text Solution

    |

  17. 20 mL of 0.1 M acetic acid is mixed with 50 mL of potassium acetate. K...

    Text Solution

    |

  18. 50 ml of H(2)O is added to 1 xx 10^(-3)M barium hydroxide solution. Wh...

    Text Solution

    |

  19. Assertion (A): The aqueous solution of CH(3)COONa is alkaline in natur...

    Text Solution

    |

  20. In a 500 mL flask, the degree of dissociation of PCI(5) at equilibrium...

    Text Solution

    |