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Aluminium is extracted from aluminium oxide. (b) 38% of a rock sample is aluminium oxide Calculate the mass of aluminium oxide in 40 kg of the rock sample Mass of aluminium oxide = kg​

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Eduard22sly

The mass of aluminum oxide in 40 Kg of the sample is 12 Kg

From the question given above, the following data were obtained:

  • Percentage of aluminum oxide = 38%
  • Mass of sample = 40 Kg
  • Mass of aluminum oxide =?

The mass of aluminum oxide in the sample can be obtained as follow:

Mass = percentage × mass of sample

Mass of aluminum oxide = 30% × 40

Mass of aluminum oxide = 0.3 × 40

Mass of aluminum oxide = 12 Kg

Therefore, the mass of aluminum oxide in 40 Kg of the sample is 12 Kg.

Learn more about percentage composition: https://brainly.com/question/14899205

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