In a sample of copper carbonate, how much copper and oxygen would there be for 5g of carbon? Use the ratio of copper to oxygen to carbon.
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Ответ:
B:H ratio is 1:3
Explanation:
The empirical formula is BH₃.
If you have 100 g of the compound.
Then you have 78.14 g B and 21.86 g H.
Now, we must convert these masses to moles and find their ratios.
From here on, I like to summarize the calculations in a table.
Element Mass/g Moles Ratio Integers
B 78.14 7.2285 1 1
H 21.86 21.686 3.0001 3
The empirical formula is BH₃.