Công thức của A có dạng Ca(hco3)x có ptk là 162 tìm x
1 answer:
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Answer:
6.8 mole of O₂
Explanation:
Given expression:
2H₂ + O₂ → 2H₂O
Number of moles of H₂ = 13.6moles
Unknown:
Number of moles of O₂ = ?
Solution:
In the given problem, we are to find the number of moles of oxygen gas that will use up 13.6mole of hydrogen gas;
From the reaction equation;
2 mole of H₂ will completely react with 1 mole of O₂
13.6 moles of H₂ will completely be used up by mole of O₂
= 6.8 mole of O₂
The mass of pure acetic acid in 220 ml of the given solution at 20°C is 92.311 g
<h3>What is Acetic acid?</h3>Acetic acid is a type of carboxylic acid and also known as ethanoic acid
Its formula is CH₃COOH.
It is an organic compound and is a colorless liquid
It is mostly used in the production of vinegar
40 % acetic acid by mass means,
40 g of acetic acid is dissolved in 100 g of solution.
The density of solution at 20°C,
We know,
The volume of the solution, = 95.33 ml
95.33 ml of solution contains 40 g of pure Acetic acid
220 ml of solution contains = 92.311 g of pure Acetic acid
Thus, the mass of pure Acetic acid in 220 ml of solution at 20°C is 92.311 g
Learn more about acetic acid:
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