Photo AI
Copper can be extracted from copper sulfide by heating it in air - OCR Gateway - GCSE Chemistry: Combined Science - Question 6 - 2020 - Paper 10
Question 6
Copper can be extracted from copper sulfide by heating it in air. Copper sulfide contains 74.0% copper by mass. An ore contains 2.00% copper sulfide. What is the ... show full transcript
Worked Solution & Example Answer:Copper can be extracted from copper sulfide by heating it in air - OCR Gateway - GCSE Chemistry: Combined Science - Question 6 - 2020 - Paper 10
Step 1
What is the maximum mass of copper that can be extracted from 150 kg of the ore?
Answer
To find the maximum mass of copper that can be extracted from 150 kg of ore, follow these steps:
-
Calculate the mass of copper sulfide in the ore:
The ore contains 2.00% copper sulfide, so the mass of copper sulfide in 150 kg of ore is calculated as follows:
ext{Mass of copper sulfide} = rac{2.00}{100} \times 150 \text{ kg} = 3.00 \text{ kg}
-
Calculate the mass of copper from the copper sulfide:
Since copper sulfide contains 74.0% copper by mass, the mass of copper extracted from 3.00 kg of copper sulfide is:
ext{Mass of copper} = rac{74.0}{100} \times 3.00 \text{ kg} = 2.22 \text{ kg}
Thus, the maximum mass of copper that can be extracted from 150 kg of the ore is 2.22 kg.