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Natural sample of cupric carbonate contains 51.35% of copper, 9.74% of oxygen and 38.91% of carbon. Synthetic sample of the compound will contain:​
  • a)
    51.35% of copper, 19.74% of oxygen and 30.91% of carbon.
  • b)
    51.35% of Copper, 9.74% of oxygen and 38.91% of carbon
  • c)
    9.74% of copper, 38.91% of oxygen and 9.74% of carbon
  • d)
    9.74% copper, 9.74% of oxygen and 38.91% of carbon
Correct answer is 'B'. Can you explain this answer?
Verified Answer
Natural sample of cupric carbonate contains 51.35% of copper, 9.74% of...
According to the law of definite proportions a given compound always contains exactly the same proportion of elements by weight irrespective of its source.
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Natural sample of cupric carbonate contains 51.35% of copper, 9.74% of...
Solution:

Given,

Natural sample of cupric carbonate contains:

- 51.35% of copper
- 9.74% of oxygen
- 38.91% of carbon

The synthetic sample of the compound will contain:

- a) 51.35% of copper, 19.74% of oxygen and 30.91% of carbon.
- b) 51.35% of Copper, 9.74% of oxygen and 38.91% of carbon.
- c) 9.74% of copper, 38.91% of oxygen and 9.74% of carbon.
- d) 9.74% copper, 9.74% of oxygen and 38.91% of carbon.

We know that the chemical formula of cupric carbonate is CuCO3.

Therefore, the molecular mass of CuCO3 = atomic mass of Cu + atomic mass of C + 3 × atomic mass of O
= 63.5 + 12 + 3 × 16
= 123.5 g/mol

Now, let's calculate the mass percentage of each element in CuCO3:

- Mass of Cu in CuCO3 = atomic mass of Cu/ molecular mass of CuCO3 × 100
= 63.5/123.5 × 100
= 51.35%

- Mass of C in CuCO3 = atomic mass of C/ molecular mass of CuCO3 × 100
= 12/123.5 × 100
= 9.74%

- Mass of O in CuCO3 = atomic mass of O/ molecular mass of CuCO3 × 100
= 48/123.5 × 100
= 38.91%

Therefore, the synthetic sample of CuCO3 will also have the same mass percentage of each element as the natural sample, which is option B:

- 51.35% of Copper, 9.74% of oxygen and 38.91% of carbon.
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Natural sample of cupric carbonate contains 51.35% of copper, 9.74% of oxygen and 38.91% of carbon. Synthetic sample of the compound will contain:​a)51.35% of copper, 19.74% of oxygen and 30.91% of carbon.b)51.35% of Copper, 9.74% of oxygen and 38.91% of carbonc)9.74% of copper, 38.91% of oxygen and 9.74% of carbond)9.74% copper, 9.74% of oxygen and 38.91% of carbonCorrect answer is 'B'. Can you explain this answer?
Question Description
Natural sample of cupric carbonate contains 51.35% of copper, 9.74% of oxygen and 38.91% of carbon. Synthetic sample of the compound will contain:​a)51.35% of copper, 19.74% of oxygen and 30.91% of carbon.b)51.35% of Copper, 9.74% of oxygen and 38.91% of carbonc)9.74% of copper, 38.91% of oxygen and 9.74% of carbond)9.74% copper, 9.74% of oxygen and 38.91% of carbonCorrect answer is 'B'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Natural sample of cupric carbonate contains 51.35% of copper, 9.74% of oxygen and 38.91% of carbon. Synthetic sample of the compound will contain:​a)51.35% of copper, 19.74% of oxygen and 30.91% of carbon.b)51.35% of Copper, 9.74% of oxygen and 38.91% of carbonc)9.74% of copper, 38.91% of oxygen and 9.74% of carbond)9.74% copper, 9.74% of oxygen and 38.91% of carbonCorrect answer is 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Natural sample of cupric carbonate contains 51.35% of copper, 9.74% of oxygen and 38.91% of carbon. Synthetic sample of the compound will contain:​a)51.35% of copper, 19.74% of oxygen and 30.91% of carbon.b)51.35% of Copper, 9.74% of oxygen and 38.91% of carbonc)9.74% of copper, 38.91% of oxygen and 9.74% of carbond)9.74% copper, 9.74% of oxygen and 38.91% of carbonCorrect answer is 'B'. Can you explain this answer?.
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