When $3 g$ of carbon is burnt in $8 g$ of oxygen, $11 g$ of Carbon dioxide is produced. What mass of Carbon dioxide will be formed when $3 g$ of carbon is burnt in $50 g$ of oxygen? Show that the data is in accordance with the law of constant proportion.

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Solution

Step 1: Definition of law of constant proportions
The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass.
Step 2: Applying the law of constant proportions
From the given data,
$3 g$ of carbon is burnt in $8 g$ oxygen to produce $11 g$ of Carbon dioxide is produced.
Thus carbon and oxygen are combined in the ratio of $3 : 8$ to give $11 g$ of Carbon dioxide.
When $3 g$ of carbon is burnt in $50 g$ of oxygen, only $8 g$ of oxygen is used to produce $11 g$ of Carbon dioxide.
$42 g$ of oxygen is left unused.
Step 3: Conclusion
Carbon and oxygen get used up in the ratio of $3 : 8$ only, no matter how much extra oxygen is available.
Hence, the data is in accordance with the law of constant proportion.

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Q. When 3 g of carbon is burnt in 8 g of oxygen, 11g of carbon dioxide is produced. What mass of carbon dioxide will be formed when 3 g of carbon is burnt in 50g of oxygen? Which law of chemical combination will govern your answer?

According to the law of conservation of mass, 3 g of carbon burnt in 8 g of oxygen forms 11 g of carbon dioxide. Now, what will be the mass of carbon dioxide produced when 3 g of carbon is burnt in 50 g of oxgyen?

Q. Question 2
When 3.0 g of carbon is burnt in 8.00 g oxygen, 11.00 g of carbon dioxide is produced. What mass of carbon dioxide will be formed when 3.00 g of carbon is burnt in 50.00 g of oxygen? Which law of chemical combinations will govern your answer?

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When 3g of carbon is burnt in 8g of oxygen, 11g of Carbon dioxide is produced. What mass of Carbon dioxide will be formed when 3g of carbon is burnt in 50g of oxygen? Show that the data is in accordance with the law of constant proportion.

When $3 g$ of carbon is burnt in $8 g$ of oxygen, $11 g$ of Carbon dioxide is produced. What mass of Carbon dioxide will be formed when $3 g$ of carbon is burnt in $50 g$ of oxygen? Show that the data is in accordance with the law of constant proportion.