Acids & Bases

A:

The pH level of lemon juice is about 2.0. Anything below 7 for pH levels means that it is an acid. Lemon juice is a strong acid. Lemons are strong in acidity because they are made of citrus juice and ascorbic acid.

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  • What color does litmus paper turn in acid?

    Q: What color does litmus paper turn in acid?

    A: When blue litmus paper is dipped in an acid, it turns red; when red litmus paper is dipped in an acid, it just appears to get wet. Alkacid paper, which is a universal indicator, turns orange or red when it is reacting to an acid, with a redder color indicating a lower pH and a stronger level of acidity.
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  • What is the pH level of hydrochloric acid?

    Q: What is the pH level of hydrochloric acid?

    A: The pH of hydrochloric acid is 0. This reading is taken from a solution of 1 mole of hydrochloric acid. A less concentrated solution of the acid, such as a 0.5-mole solution, has a higher pH, meaning it would be less acidic.
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  • Is saliva an acid or a base?

    Q: Is saliva an acid or a base?

    A: Depending on dietary and health factors, saliva can be an acid, a base or neutral. If the body operates within a normal range, the pH level of saliva stays between 6.5 and 6.8, which makes it slightly acidic.
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  • What is the pH level of lemon juice?

    Q: What is the pH level of lemon juice?

    A: The pH level of lemon juice is 2.0. The pH scale is used to measure how acidic or alkaline/base a solution is. The pH scale runs from 0 to 14; a pH of 7 is neutral, a pH lower than 7 is acidic and higher than 7 is alkaline.
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  • What is the difference between an acid versus a base?

    Q: What is the difference between an acid versus a base?

    A: An acid is a substance that donates a proton, and a base is a substance that accepts a proton. A base is a chemical compound that forms OH- ions when dissolved in water and reacts with acids to form salts. An acid is a chemical compound that forms H+ ions when dissolved in water and reacts with bases to form salts.
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  • What is the pH of sodium hydroxide?

    Q: What is the pH of sodium hydroxide?

    A: The pH of concentrated sodium hydroxide is 14. It is one of the most strongly basic substances that exists; however, it is rarely encountered in its fully concentrated form, and its pH in solution depends on its concentration.
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  • What is the pH level of Coke?

    Q: What is the pH level of Coke?

    A: The pH of Coke products ranges from 2.5 to 4.2. The most acidic Coke product is Coke Classic, which has a pH of 2.5. These beverages contain phosphoric acid, an additive used to enhance the flavor of soft drinks.
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  • What is the pH of acetone?

    Q: What is the pH of acetone?

    A: Acetone (C3H6O) has a pH of 7, which means that the substance, on its own, is neither an acid nor a base. This pH value, which is about the same as pure water, shows that acetone is relatively neutral. The organic compound is also known by the IUPAC name of propanone.
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  • What is the pH level of bleach?

    Q: What is the pH level of bleach?

    A: Bleach has a pH value of around 12 or 13. The pH scale is used as a measure of the acidity or basicity of solutions in which the solvent is water. Solutions with a pH value of 7 or less are acidic, while those above this number are basic.
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  • What are the uses of ether?

    Q: What are the uses of ether?

    A: Ether is used as a mild anesthetic and as a solvent in industries. It is an organic compound that has sweet smell. Ether is colorless and evaporates very quickly when exposed to air. It catches fire very easily and needs to be handled with care.
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  • What is the pH in your mouth?

    Q: What is the pH in your mouth?

    A: The pH of the mouth varies depending on the person. A healthy pH is above 7, and damage to teeth can occur if the pH is below 6.5.
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  • Is HCN a strong acid?

    Q: Is HCN a strong acid?

    A: Hydrogen cyanide, or HCN, is not a strong acid. In solution, hydrogen cyanide is a weak acid that is mostly HCN with minimal amounts of hydronium and cyanide ionized. A weak acid partially ionizes in solution. The solution moves backwards and forwards to create the products and reactants.
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  • Why is red cabbage juice a good indicator of pH?

    Q: Why is red cabbage juice a good indicator of pH?

    A: Red cabbage juice is a good indicator of pH because it contains flavin, a pigment molecule that changes colors according to the concentration of hydrogen ions in a solution. The juice is prepared by soaking chopped red cabbage in boiling water for at least 10 minutes and then filtering the solution to eliminate any plant material.
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  • What does stomach acid do?

    Q: What does stomach acid do?

    A: Stomach acid breaks down food so that it is more easily absorbed by the body, according to MedicineNet. Muscles in the wall of the stomach churn the food, stomach acid and enzymes together to create a thick liquid, known as chyme, that moves into the small intestine for further digestion.
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  • How does soil affect the pH of water?

    Q: How does soil affect the pH of water?

    A: Depending on the chemicals in the soil, the pH of water passing through it increases, decreases or remain the same. In areas where water passes through soil containing limestone, dissolving the calcium carbonate in water creates a buffer solution, tying up the hydrogen or hydroxyl ions in the water so the pH becomes less likely to change.
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  • What are some household alkalis?

    Q: What are some household alkalis?

    A: Common household alkalis include indigestion tablets (antacids), bleach, toothpaste, baking powder, cream cleaner, oven cleaner, metal polish and alkaline batteries. They can have moderate to severe levels of toxicity.
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  • What is meant when a system has reached equilibrium?

    Q: What is meant when a system has reached equilibrium?

    A: In chemistry, the term equilibrium refers to a chemical reaction occurring in which there is no net change in the concentration of reactants and products. The quantities of products and reactants achieve a constant ratio.
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  • What are the chemical properties of copper?

    Q: What are the chemical properties of copper?

    A: Copper is a pliable metal with high thermal and electrical conductivity capabilities. It can be identified on the periodic table of elements as Cu and as atomic number 29. Copper and its alloys have been used for thousands of years for various purposes.
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  • Is sugar an acid or base?

    Q: Is sugar an acid or base?

    A: Sugar is neither an acid nor a base. Pure sugar, or glucose, is a neutral substance. A neutral substance is a substance that does not exhibit acidic or basic properties. Neutral substances like sugar do not trigger a reaction on a Litmus paper.
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  • What happens when an acid and a base are combined?

    Q: What happens when an acid and a base are combined?

    A: Mixing a base with an acid results in a chemical reaction called neutralization. The result is a perfectly balanced solution of salt and water with a pH of 7 if the acid and base are balanced properly. Depending on the bases and acids used, it can be a dangerous experiment.
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  • What is the pH of lemon juice?

    Q: What is the pH of lemon juice?

    A: The pH level of lemon juice is about 2.0. Anything below 7 for pH levels means that it is an acid. Lemon juice is a strong acid. Lemons are strong in acidity because they are made of citrus juice and ascorbic acid.
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