Most vinegars including apple cider vinegar and white distilled vinegar , are 3-5% acetic acid while cleaning vinegar can range
2 answers:
Answer:
- <u>Higher acidity (lower pH) making it a better cleaning solution because it will be able to kill more microorganisms</u>
Explanation:
The higher the percentage of the vinegar solution, the higher the molar concentration of hydrodium ions, [H₃O⁺].
pH is a measure of the concentration of H₃O⁺ ions:
The lower the pH the more acidic the solution.
Thus, the higher the percentage of vinegar, the higher [H₃O⁺], the lower the pH, and the more acidic the solution.
The feature that makes vinegar a good cleaning agent is its acidity: high acidity environments are inhospitable for many microorganisms.
Thus, the advantage of a vinegar with 6 - 15% acetic acid is its higher acidity (lower pH), which makes it more suitable to kill more microorganisms.
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Answer : The rate of effusion of sulfur dioxide gas is 52 mL/s.
Solution :
According to the Graham's law, the rate of effusion of gas is inversely proportional to the square root of the molar mass of gas.
or,
..........(1)
where,
= rate of effusion of nitrogen gas =
= rate of effusion of sulfur dioxide gas = ?
= molar mass of nitrogen gas = 28 g/mole
= molar mass of sulfur dioxide gas = 64 g/mole
Now put all the given values in the above formula 1, we get:
Therefore, the rate of effusion of sulfur dioxide gas is 52 mL/s.