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emily200705
11.07.2019 •
Chemistry
Sulfur and oxygen form both sulfur dioxide and sulfur trioxide. when samples of these were decomposed the sulfur dioxide produced 3.49 g oxygen and 3.50 g sulfur, while the sulfur trioxide produced 6.75 g oxygen and 4.50 g sulfur. calculate the mass of oxygen per gram of sulfur for each sample and show that these results are consistent with the law of multiple proportions.
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Ответ:
The reaction for decomposition of sulfur dioxide (SO₂) and sulfur trioxide (SO₃) are given below:
SO₂ → S + O₂ and SO₃→ S +
O₂
In SO₂, for 3.50 g sulfur, oxygen produced is equal to 3.49 g, so, for 1 g sulfur 3.49/3.50 g= 0.997 g of O₂
In SO₃, for 4.50 g sulfur, oxygen produced is 6.75 g, so for 1 g sulfur, oxygen p;roduced will be equal to 6.75/4.50g=1.5 g of O₂.
With 1 g of sulfur, the ratio of the amount of oxygen present in SO₂ and SO₃ is 0.997:1.50= 2:3, this is a simple ratio and small whole number. These results are consistent with the Law of Multiple Proportion.
Ответ:
19.52 ; 2.80 ; 1.28 is the correct group of like decimals.
Hope this helps:)