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An open container contained 150g of lead carbonate. After heating for 5 hours, the contents of the container were measured to have a mass of
Question
An open container contained 150g of lead carbonate. After heating for 5 hours, the contents of the container were measured to have a mass of 98g.
How much mass was “lost” from the container? Where did it go?
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5 months
2021-08-16T04:48:29+00:00
2021-08-16T04:48:29+00:00 1 Answers
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Answers ( )
Answer:
52 g was lost as carbon dioxide to the atmosphere
Explanation:
When lead carbonate is heated, it decomposes into two components:
1. Lead oxide
2. carbon dioxide
While the lead oxide remains a yellow solid in the heating container, the carbon dioxide escapes into the atmosphere as a gas. The equation of the reaction is as below:
Hence, if a 150 g lead oxide is heated in a container and the final mass is 98 g, it means 52 g (150 – 98) of the total mass has been lost as carbon dioxide to the atmosphere.