20 ml of a H3PO4 solution needs 40 ml of 0.1 M NaOH to convert it into sodium dihydrogen phosphate. How much volume of 0.1 M Ca(OH)2 is needed to neutralise the same volume of same H3PO4 completely:
Correct answer: D. 60ml
- A. 120ml
- B. 20ml
- C. 40ml
- D. 60ml
Explanation
Following is the solution to this question:
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About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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