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Acid-base neutralisation: volume, molarity or mass from a titration

This type of question, asked 11 times: 25 Jun 2022, 27 Jul 2022, 28 Jul 2022, 25 Jan 2023, 29 Jan 2023, 6 Apr 2023, 13 Apr 2023, 29 Jan 2024, 22 Jan 2025, 3 Apr 2025, 23 Jan 2026 S1. All 11 questions below, oldest first.

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  1. Question 1

    25 Jun 2022

    150
    The neutralization occurs when 10 mL10\text{ }mL of 0.1M0.1M acid ' AA ' is allowed to react with 30 mL30\text{ }mL of 0.05M0.05M base M(OH)2M(OH)_{2}. The basicity of the acid 'A' is [ MM is a metal]

  2. Question 2

    27 Jul 2022

    141
    The normality of H2SO4H_{2}SO_{4} in the solution obtained on mixing 100 mL100\text{ }mL of 0.1MH2SO40.1MH_{2}SO_{4} with 50 mL50\text{ }mL of 0.1 MNaOHMNaOH is ×10−1 N\times10^{- 1}\text{ }N. (Nearest Integer)

  3. Question 3

    28 Jul 2022

    141
    2 L2\text{ }L of 0.2MH2SO40.2MH_{2}SO_{4} is reacted with 2 L2\text{ }L of 0.1M0.1M NaOHNaOH solution, the molarity of the resulting product Na2SO4Na_{2}SO_{4} in the solution is ____millimolar. (Nearest integer).

  4. Question 4

    25 Jan 2023

    55
    The density of a monobasic strong acid (Molar mass 24.2 g/mol24.2\text{ }g/mol ) is 1.21 kg/L1.21\text{ }kg/L. The volume of its solution required for the complete neutralization of 25 mL25\text{ }mL of 0.24MNaOH0.24MNaOH is__ ×10−2 mL\times10^{- 2}\text{ }mL (Nearest integer)

  5. Question 5

    29 Jan 2023

    145
    The volume of HClHCl, containing 73 g L−173\text{ }g{\text{ }L}^{- 1}, required to completely neutralise NaOHNaOH obtained by reacting 0.69 g0.69\text{ }g of metallic sodium with water, is ____mL. (Nearest Integer) (Given: molar Masses of Na,Cl,O,HNa,Cl,O,H, are 23,35.5,16 and 1 g mol−11\text{ }g{\text{ }mol}^{- 1} respectively)

  6. Question 6

    6 Apr 2023

    135
    The volume of 0.02M0.02M aqueous HBrHBr required to neutralize 10.0 mL10.0\text{ }mL of 0.01M0.01M aqueous Ba(OH)2Ba(OH)_{2} is (Assume complete neutralization)

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  7. Question 7

    13 Apr 2023

    56
    20 mL20\text{ }mL of calcium hydroxide was consumed when it was reacted with 10 mL10\text{ }mL of unknown solution of H2SO4H_{2}SO_{4}.Also 20 mL20\text{ }mL standard solution of 0.5M0.5M HClHCl containing 2 drops of phenolphthalein was titrated with calcium hydroxide the mixture showed pink colour when burette displayed the value of 35.5 mL35.5\text{ }mL whereas the burette showed 25.5 mLmL initially. The concentration of H2SO4H_{2}SO_{4} is_________ M (Nearest integer)

  8. Question 8

    29 Jan 2024

    145
    If 50 mL50\text{ }mL of 0.5M0.5M oxalic acid is required to neutralise 25 mL25\text{ }mL of NaOHNaOH solution, the amount of NaOHNaOH in 50 mL50\text{ }mL of given NaOHNaOH solution is____ g.

  9. Question 9

    22 Jan 2025

    46
    Some CO2CO_{2} gas was kept in a sealed container at a pressure of 1 atm and at 273 K . This entire amount of CO2CO_{2} gas was later passed through an aqueous solution of Ca(OH)2Ca(OH)_{2}. The excess unreacted Ca(OH)2Ca(OH)_{2} was later neutralized with 0.1 M of 40 mL HCl . If the volume of the sealed container of CO2CO_{2} was x , then x is _________\_\_\_\_\_\_\_\_\_ cm3cm^{3} (nearest integer). [Given : The entire amount of CO2( g)CO_{2}(\text{ }g) reacted with exactly half the initial amount of Ca(OH)2Ca(OH)_{2} present in the aqueous solution.]

  10. Question 10

    3 Apr 2025

    102
    10 mL of 2 M NaOH solution is added to 20 mL of 1 M HCl solution kept in a beaker. Now, 10 mL of this mixture is poured into a volumetric flask of 100 mL containing 2 moles of HCl and made the volume upto the mark with distilled water. The solution in this flask is :

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  11. Question 11

    23 Jan 2026 S1

    48
    x mg of pure HCl was used to make an aqueous solution. 25.0 mL of 0.1MBa(OH)20.1MBa(OH)_{2} solution is used when the HCl solution was titrated against it. The numerical value of xx is ____\_\_\_\_ ×10−1\times 10^{- 1}. (Nearest integer) Given : Molar mass of HCl and Ba(OH)2Ba(OH)_{2} are 36.5 and 171.0 g mol−1171.0\text{ }g{\text{ }mol}^{- 1} respectively.