What is the pH of a solution that has the same number of hydrogen ions as hydroxide ions?
1 answer:
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Answer:
2.07 mol O₂
Explanation:
First we need to write down the species present in the chemical equation, using the information given by the exercise:
- H₂S + O₂ → SO₂ + H₂O
However this equation <em>is not balanced</em>, so now we<u> balance it</u>:
- 2H₂S + 3O₂ → 2SO₂ + 2H₂O
Now we can use the stoichiometric ratio to <u>calculate the moles of oxygen </u>from the moles of sulfide dioxide:
- 1.38 molSO₂ *
= 2.07 mol O₂
Answer:
Explanation:
Hello!
In this case, since the molecular formula of glycine is C₂H₅NO₂, we realize that the molar mass is 75.07 g/mol; thus, the moles in 130.0 g of glycine are:
Furthermore, we can notice 75.07 grams of glycine contains 14.01 grams of nitrogen; thus, the percent nitrogen turns out:
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