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A given sample of chalk contains 55% by mass of calcium carbonate. Calculate the percentage of calcium,carbon and oxygen in the sample.?
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A given sample of chalk contains 55% by mass of calcium carbonate. Cal...
Calculation of Percentage of Calcium, Carbon and Oxygen in Chalk Sample
Given:
Mass percentage of Calcium Carbonate in the chalk sample = 55%
To Find:
Percentage of Calcium, Carbon and Oxygen in the sample
Solution:
Let us assume a 100g sample of chalk.
Mass of calcium carbonate in the sample = 55g
Calculation of Mass of Calcium, Carbon and Oxygen in the Sample:
Mass of Calcium = Atomic Mass of Calcium * Number of moles of Calcium
Mass of Carbon = Atomic Mass of Carbon * Number of moles of Carbon
Mass of Oxygen = Atomic Mass of Oxygen * Number of moles of Oxygen
Calculation of Percentage of Calcium, Carbon and Oxygen in the Sample:
Percentage of Calcium = (Mass of Calcium / Total Mass of Sample) * 100 = (0.08016 / 100) * 100 = 0.08016%
Percentage of Carbon = (Mass of Carbon / Total Mass of Sample) * 100 = (0.01224 / 100) * 100 = 0.01224%
Percentage of Oxygen = (Mass of Oxygen / Total Mass of Sample) * 100 = (0.1392 / 100) * 100 = 0.1392%
Answer:
The percentage of Calcium, Carbon and Oxygen in the given sample of chalk are as follows:
Percentage of Calcium = 0.08016%
Percentage of Carbon = 0.01224%
Percentage of Oxygen = 0.1392%
Given:
Mass percentage of Calcium Carbonate in the chalk sample = 55%
To Find:
Percentage of Calcium, Carbon and Oxygen in the sample
Solution:
Let us assume a 100g sample of chalk.
Mass of calcium carbonate in the sample = 55g
Calculation of Mass of Calcium, Carbon and Oxygen in the Sample:
Mass of Calcium = Atomic Mass of Calcium * Number of moles of Calcium
Atomic Mass of Calcium = 40.08 g/mol
Number of moles of Calcium = (Mass of Calcium Carbonate * Mass percentage of Calcium in Calcium Carbonate) / (Atomic Mass of Calcium * Mass percentage of Calcium Carbonate) = (55 * 40.08 * 0.4) / (100 * 55) = 0.08016 g
Therefore, Mass of Calcium in the sample = 0.08016 g
Mass of Carbon = Atomic Mass of Carbon * Number of moles of Carbon
Atomic Mass of Carbon = 12.01 g/mol
Number of moles of Carbon = (Mass of Calcium Carbonate * Mass percentage of Carbon in Calcium Carbonate) / (Atomic Mass of Carbon * Mass percentage of Calcium Carbonate) = (55 * 12.01 * 0.12) / (100 * 55) = 0.01224 g
Therefore, Mass of Carbon in the sample = 0.01224 g
Mass of Oxygen = Atomic Mass of Oxygen * Number of moles of Oxygen
Atomic Mass of Oxygen = 16 g/mol
Number of moles of Oxygen = (Mass of Calcium Carbonate * Mass percentage of Oxygen in Calcium Carbonate) / (Atomic Mass of Oxygen * Mass percentage of Calcium Carbonate) = (55 * 16 * 0.48) / (100 * 55) = 0.1392 g
Therefore, Mass of Oxygen in the sample = 0.1392 g
Calculation of Percentage of Calcium, Carbon and Oxygen in the Sample:
Percentage of Calcium = (Mass of Calcium / Total Mass of Sample) * 100 = (0.08016 / 100) * 100 = 0.08016%
Percentage of Carbon = (Mass of Carbon / Total Mass of Sample) * 100 = (0.01224 / 100) * 100 = 0.01224%
Percentage of Oxygen = (Mass of Oxygen / Total Mass of Sample) * 100 = (0.1392 / 100) * 100 = 0.1392%
Answer:
The percentage of Calcium, Carbon and Oxygen in the given sample of chalk are as follows:
Percentage of Calcium = 0.08016%
Percentage of Carbon = 0.01224%
Percentage of Oxygen = 0.1392%
Community Answer
A given sample of chalk contains 55% by mass of calcium carbonate. Cal...
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A given sample of chalk contains 55% by mass of calcium carbonate. Calculate the percentage of calcium,carbon and oxygen in the sample.?
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A given sample of chalk contains 55% by mass of calcium carbonate. Calculate the percentage of calcium,carbon and oxygen in the sample.? 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 A given sample of chalk contains 55% by mass of calcium carbonate. Calculate the percentage of calcium,carbon and oxygen in the sample.? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A given sample of chalk contains 55% by mass of calcium carbonate. Calculate the percentage of calcium,carbon and oxygen in the sample.?.
A given sample of chalk contains 55% by mass of calcium carbonate. Calculate the percentage of calcium,carbon and oxygen in the sample.? 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 A given sample of chalk contains 55% by mass of calcium carbonate. Calculate the percentage of calcium,carbon and oxygen in the sample.? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A given sample of chalk contains 55% by mass of calcium carbonate. Calculate the percentage of calcium,carbon and oxygen in the sample.?.
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