Chemistry High School

Acidity is measured in terms of increasing in water. Multiple Choice carbon dioxide molecules, CO
2
​
oxygen ions, O
2−
carbon atoms, C hydrogen ions, H
+

Answers

Answer 1

Acidity is measured in terms of an increase in hydrogen ions (H+) in water. While carbon dioxide molecules ([tex]CO_2[/tex]), oxygen ions (), and carbon atoms (C) are involved in various chemical processes, only hydrogen ions contribute to determining acidity. The concentration of hydrogen ions in a solution is what is quantified, as their presence in excess leads to a lower pH value. Hence, the correct answer is hydrogen ions, H+.

Acidity is a property that is measured in terms of an increase in hydrogen ions (H+) in water. Hydrogen ions are responsible for the acidic nature of a substance.

In the case of the given multiple-choice options, carbon dioxide molecules ([tex]CO_2[/tex]), oxygen ions (O2-), carbon atoms (C), and hydrogen ions (H+) are all involved in different chemical processes, but only hydrogen ions contribute to measuring acidity.

Carbon dioxide molecules ([tex]CO_2[/tex]) are formed by one carbon atom bonded to two oxygen atoms and are typically associated with the process of respiration in living organisms. Oxygen ions (O2-) are negatively charged ions that are formed when oxygen atoms gain two electrons. Carbon atoms (C) are the fundamental building blocks of organic compounds. Hydrogen ions (H+) are positively charged ions formed when a hydrogen atom loses its electron.

However, when it comes to measuring acidity, it is the concentration of hydrogen ions (H+) in a solution that is quantified. Acidity is determined by the presence of excess hydrogen ions, which lowers the pH value of a solution. Therefore, the correct answer to the multiple-choice question is hydrogen ions, H+.

Therefore, Acidity is measured in terms of an increase in hydrogen ions (H+) in water. While carbon dioxide molecules ([tex]CO_2[/tex]), oxygen ions (O2-), and carbon atoms (C) are involved in various chemical processes, only hydrogen ions contribute to determining acidity. The concentration of hydrogen ions in a solution is what is quantified, as their presence in excess leads to a lower pH value. Hence, the correct answer is hydrogen ions, H+.

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Related Questions

What is the Phase constant?

Express your answer in radians to three significant figures.

I know the phase constant is 3pi/2 but I don't how to convert it to three sig figs. Please help!

Answers

The phase constant, expressed in radians to three significant figures, is approximately 4.71 rad.

To convert the phase constant, which is given as 3π/2, to three significant figures, we need to evaluate the numerical value of the expression.

The value of π (pi) is approximately 3.14159, and dividing 3 by π gives us 0.95493. Multiplying this value by 2, we get 1.90987. To achieve three significant figures, we round this value to 1.91.

Hence, the phase constant, 3π/2, can be approximated as 1.91.

It's important to note that rounding the numerical value of the expression to three significant figures does not affect the symbolic representation, which remains 3π/2. However, when expressing the value in numerical form, rounding to three significant figures provides a more concise and accurate representation.

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if a sample contains only fats, what color would a biuret's reagent test show?

Answers

The Biuret's reagent test for proteins would show no color change if a sample contains only fats.

The Biuret's reagent test is commonly used to detect the presence of proteins in a solution. When proteins are present, Biuret's reagent reacts with peptide bonds and forms a complex that gives a purple color.

However, fats, also known as lipids, do not contain peptide bonds like proteins do. Therefore, if a sample contains only fats and no proteins, Biuret's reagent will not undergo any reaction and will not show a color change. The solution will remain the same color as the original Biuret's reagent, typically blue.

It's important to note that the Biuret's reagent test is specific for proteins and not suitable for detecting other biomolecules such as fats or carbohydrates. Different tests, such as the Sudan III test for lipids or the iodine test for starch, would be more appropriate for detecting the presence of fats or carbohydrates, respectively.

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