Most vinegars including apple cider vinegar and white distilled vinegar , are 3-5% acetic acid while cleaning vinegar can range from 6 15% acetic acid. What advantage does this give a cleaning solution?

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.

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g

4d^55s^1 ( third choice)