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Indian Coast Guard Navik (Domestic) Mole Concept — practice questions

Explore 1 free Mole Concept questions in Indian Coast Guard Navik (Domestic) Science. Open each question or exercise to read its content, reference answers and available explanation.

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Mole Concept questions and exercises with answers

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The number of moles in 23.3 g of zinc (atomic mass ≈ 65.4) is approximately _____.Read the answer and worked solution →

Worked practice questions

The number of moles in 23.3 g of zinc (atomic mass ≈ 65.4) is approximately _____.

  1. 0.25
  2. 0.53
  3. 0.35
  4. 0.37
Show answer and solution

Correct answer: C. 0.35

1. Moles = mass / atomic mass. 2. Moles = 23.3 / 65.4. 3. = 0.356 ≈ 0.35. _Source: RRB Group D CEN-02/2018 PYQ, Q.17._

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