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Arrange the following household items: toothpaste, bath soap, tap water, vinegar from the most acidic to most basic?

Sagot :

Indrawboyidn

The order of the following household items from the most acidic to the most basic: vinegar, toothpaste, tapwater, bathsoap

Further explanation

Acids and bases according to Bronsted-Lowry

Acid = donor (donor) proton (H⁺ ion)

Base = proton (receiver) acceptor (H⁺ ion)

pH is the degree of acidity of a solution that depends on the concentration of H⁺ ions. The greater the value the more acidic the solution and the smaller the pH.

pH = - log [H⁺]

The pH range is:

  • acidic if the pH is <7
  • neutral if pH = 7
  • base if pH> 7

Toothpaste is used to clean teeth using toothbrushes.

Its main composition is fluoride which helps protect teeth from dental diseases including caries or cavities. In addition there is the content of aluminum hydroxide (Al (OH)₃) or calcium carbonate (CaCO₃) as a cleaning agent.

In general, the pH of the toothpaste will be at a pH slightly below 7, so that it is expected not to be too acidic / basic so that it does not damage tooth enamel, but still has cleaning properties.

Soap is usually used extensively as a cleaner, such as hand washing, bathing and can even be used as lubricants

Soap can be made from the saponification process, in which the hydrolysis reaction of fats into fatty acids and glycerol in alkaline conditions. So Soap is a salt of alkali metal (usually a sodium salt) from fatty acids.

triglycerides + strong base (can be NaOH) ---> soap and glycerol

So soap, will have a high pH because it is alkaline (pH> 7)

Tap water is generally a source of drinking water that is produced from the processing of water sources (either surface water or ground water)

Its use in addition to drinking water can also be used for cooking, washing, or watering plants.

Because its main use is as a source of drinking water, producers / governments will make a neutral tap water pH which is around pH 7, so that it does not have harmful effects on the community.

Vinegar is an acidic liquid, the result of ethanol fermentation and is used as a cooking ingredient.

The main ingredient is acetic acid (CH₃COOH) which is a weak acid.

So the pH of the vinegar will be around under 4

Learn more

The concentration of the basic solution

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Acid and pH

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the pH of a 0.122 M monoprotic acid

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