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:
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Fundamental Concepts of Chemistry
894 free Fundamental Concepts of Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Fundamental Concepts of Chemistry questions
Choose the correct option regarding number of particles associated with one mole of a substance:
11.2L of CO2 at STP corresponds to how many number of moles?
Atomicity is determined by number _ of present in a molecule:
The solubility of substance "X" in pure ethanol is 0.1 gm/lit and in water is 0.01 gm/lit. To dissolve 11 gm of dry "X" we are adding 20 ml of fresh 50% (V/V) ethanol solution in each time on "X". How many times we are to add this ethanol solution to dissolve "X"?
The weight of 305 mL of a diatomic gas at 0°C and 2 atm pressure is 1g. The weight of one atom is (N is the Avogadro's number):
When 3.0 litre solution of normality N is mixed with 5.0 litre of 4M HCl, then the resultant solution has the normality 10. Find the value of N.