Preview

The Effect Of Ph On The Ph Of Strong Acids And Bases

Good Essays
Open Document
Open Document
702 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The Effect Of Ph On The Ph Of Strong Acids And Bases
Objective
The objective of this lab is to determine the pH level of common household products.

Introduction
Liquids are either acidic, basic, or neutral. We are able to figure out which one it is based on properties, along with the pH. Acids taste sour, and bases taste bitter. Using the pH scale, you are able to know how strong of an acid or base a liquid is. High concentration of [H+] ions means that the liquid has a low pH. Therefore a liquid with a low concentration of [H+] would have a high pH. A pH of less than 7 represents an acid, while a pH above 7 represents a base. A pH of 7 would be neutral. In this lab, we used red cabbage juice as a pH indicator to determine whether common household liquids were acidic, basic, or neutral. Using …show more content…
How does it change the pH of strong acids/bases? Why or why not?
The addition of water does not have a significant impact on the pH of strong acids and bases, but it does have an impact on weak acids and bases. It changes the pH because the hydrogen ions in water increases the concentration in acids and bases. Weak acids and bases have low concentrations of [H+], therefore the addition of water has a large impact on the pH.

How does the difference in 1 pH unit change in terms of [H+] concentration? Example: How does a pH of 3 differ from a pH of 4? Which one is stronger or weaker? Why?
A difference in one pH is 10x difference in [H+]. A liquid with a pH of 3 is 10x more acidic than a liquid with a pH of 4, therefore a liquid with a pH of 3 is stronger.

Look at the ingredients for each liquid you tested. Which ingredients contribute to each of the liquid’s pH?
Sprite: Citric Acid
Apple Juice: Ascorbic Acid
Baking Soda: Sodium Bicarbonate
Shampoo: Citric Acid
Conditioner: Sodium Carbonate

Neutralization: Whenever you mix an acid with a base, they neutralize each other. If this is the case, why is Alka-Seltzer used to treat stomach
Continue Reading
View Writing Issues

You May Also Find These Documents Helpful

  • Good Essays

    AP Bio Chapter 2- Basic Chemistry
    • 1207 Words
    • 12 Pages

    AP Bio Chapter 2- Basic Chemistry

    If [-OH] > [H+], basic pH scale = how acidic or basic a solution is – Ie: NaCl in H2O splits into Na+ and Cl– Needed in precise amounts for many processes, like muscle contraction and nerve impulses. pH Scale • In pure water only 1 water molecule in every 554 million is dissociated. – very small amount of ions – [H+] or [OH-] is 10-7M [H+] [OH-] = 10-14 • pH scale is based on this equation 6 9/22/2011 pH Scale • In neutral solution [H+] = 10-7 → pH = 7 • Values for pH decline as [H+] increases • Acids – adding acid increases [H+] • Bases – adding base increases [OH-] pH & Biology • pH of a neutral solution = 7 • Acidic solutions =…

    • 1207 Words
    • 12 Pages
    Good Essays
    Read More
  • Good Essays

    Strong Bases Lab Report
    • 604 Words
    • 3 Pages

    Strong Bases Lab Report

    Aqueous solutions of acids have a pH of less than 7. An acid has a ph containing acid or having the properties of an acid in particular, having a pH of less than 7. Acids we use eat and drink everyday are oranges and lemons. The strength of an acid refers to its ability or tendency to lose a proton. A strong acid is one that completely dissociates in water; in other words, one mole of a strong acid HA dissolves in water yielding one mole of H+ and one mole of the conjugate base, A−, and none of the protonated acid. Then the neutralization of acid is when the reaction between an acid and a base, producing a salt and neutralized base for example hydrochloric acid and sodium hydroxide form sodium chloride and water. Neutralization with a base weaker than the acid results in a weakly acidic salt. An example is the weakly acidic ammonium chloride, which is produced from the strong acid hydrogen chloride and the weak base ammonia. Conversely neutralizing a weak acid with a strong base gives a weakly basic salt sodium fluoride from hydrogen fluoride and sodium hydroxide. Acids are often used to remove rust and other corrosion from metals in a process known as pickling. They may be used as an electrolyte in a wet cell battery…

    • 604 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Gr 10 Science Lab
    • 970 Words
    • 4 Pages

    Gr 10 Science Lab

    An acid is a solution that has more free hydrogen ions (H + ) than hydroxyl ions (OH - ) and a pH less than 7. A base is a solution that has less free hydrogen ions (H + ) than hydroxyl ions (OH - ) and a pH of more than 7. In the late 1800s, the Swedish scientist Svante Arrhenius purposed that water can dissolve many compounds by separating them into their individual ions. Arrhenius suggested that acids are compounds that contain hydrogen and can dissolve in water to release hydrogen ions into solution. For example, hydrochloric acid (HCl) dissolves in water as follows:…

    • 970 Words
    • 4 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    INT Task 3
    • 1084 Words
    • 5 Pages

    INT Task 3

    My first literature review will come from a blog titled, “How Can You Tell If Something Is An Acid Or A Base?” The article explains how water’s elements form it and also how pH in acids and bases abide by certain laws and situations. Acids and bases are normally found in a liquefied state forming molecules that would dissolve in water to let out ions.…

    • 1084 Words
    • 5 Pages
    Good Essays
    Read More
  • Powerful Essays

    EXPERIMENT: Effect of Dissolved Carbon Dioxide on the pH of water
    • 1741 Words
    • 11 Pages

    EXPERIMENT: Effect of Dissolved Carbon Dioxide on the pH of water

    pH is a measurement of how acidic or basic a solution is. Water with pH lower than 7 is considered acidic and higher than 7 is known as basic. The safe levels of pH in drinking water is 6.5 - 8.5. Pure water has a pH of 7 which means there is an equilibrium of positive hydrogen ions and negative hydroxide ions. ((When the pH of water is below 6.5, the water is soft and corrosive. This type of water can damage metal pipes and when used, it can stain clothes, have a sour taste and damage sinks. Water with a Ph greater than 8.5 is considered hard. This water does not pose a health risk, but can stain dishes and utensils))4. When Ph of water is low there can be many consequences and effects. ((Even a moderate decrease in pH of water could affect the fish…

    • 1741 Words
    • 11 Pages
    Powerful Essays
    Read More
  • Good Essays

    Apes- Water Study Guide
    • 1340 Words
    • 6 Pages

    Apes- Water Study Guide

    pH is the measure of hydrogen ion concentration in a substance and is used to test how basic or acidic water is.…

    • 1340 Words
    • 6 Pages
    Good Essays
    Read More
  • Good Essays

    Acid Rain Lab Report
    • 768 Words
    • 4 Pages

    Acid Rain Lab Report

    As a result we found out how chemicals and HCL combine, changing the water’s pH levels. When pH levels are too high, the water is labeled as being too acidic meaning it is too hazardous to drink or touch. AST International claims that “Most of us automatically classify lemons, rhubarbs and vinegar as acidic solely because of the way they taste. We don’t realize that strawberries and tomatoes and plenty of other foods are acids too” (Tanasescu). The release of hydrogen ions is how we determine if foods are classified as acids or…

    • 768 Words
    • 4 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Student Exploration: pH Analysis
    • 787 Words
    • 6 Pages

    Student Exploration: pH Analysis

    The strength of an acid or base is measured on the pH scale. The term “pH” is short for “potential of hydrogen.” It is a measure of how many excess H+ ions there are in a solution. The pH scale runs from 0 to 14, with 0 representing the highest concentration of hydrogen ions. Acidic substances have a pH below 7, while alkaline substances (bases) have a pH above 7. Pure water has a pH of 7 and is considered neutral.…

    • 787 Words
    • 6 Pages
    Satisfactory Essays
    Read More
  • Satisfactory Essays

    Assess The Difference Between Level Of 7 And Ph Of 8
    • 169 Words
    • 1 Page

    Assess The Difference Between Level Of 7 And Ph Of 8

    The difference in concentration of H3O+ ions between a pH of 7 and a pH of 8 is that the pH of 7 has an amount of H3O+ ions that is equal to its amount of OH- ions (neutral), while a pH of 8 has slightly less H3O+ ions molecules than OH+ ions (slightly basic). The difference in concentration of H3O+ ions between a pH of 4 and a pH of 6 is that the pH…

    • 169 Words
    • 1 Page
    Satisfactory Essays
    Read More
  • Good Essays

    Blood Buffer Lab
    • 580 Words
    • 3 Pages

    Blood Buffer Lab

    In this experiment, HCl (a strong acid) and NaOH (a strong base) are used as examples of strong acids/bases, and the titration with H2PO4 shows the effect on a buffer solution. The assumption was the addition of large amounts of HCl will lower the pH, while the addition of large amounts of NaOH will increase the pH, while small amounts of either strong acid or base will not affect blood pH because of the buffer in blood.…

    • 580 Words
    • 3 Pages
    Good Essays
    Read More
  • Good Essays

    Module 1 Homework
    • 965 Words
    • 4 Pages

    Module 1 Homework

    The PH scale is summarized by two main categories. Acids release Hydrogen ions while Bases release hydroxyl ions. The higher the hydrogen ion concentration the more acidic the solution. A Neutral PH is considered to be a 7, on a scale from 0 to 14. Acidic is on the low end of the scale while basic is on the high end of the scale. The PH scale is very important in living cells and tissues because everything inside the body has an “optimal PH”. This means that certain reactions cannot occur or are not as effective if the PH isn’t correct. (VanMeter, VanMeter, & Hubert, n.d., p.27-28).…

    • 965 Words
    • 4 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Physics: Acids and Bases are Everywhere
    • 315 Words
    • 2 Pages

    Physics: Acids and Bases are Everywhere

    Every solution has either has an acid or basic trait. The acid or basic trait in a solution are called pH level. pH is a scale that is used to determine if solution is acidic ,basic, or neutral. During Living Environment class, we conducted a experiment that allowed us to measure the pH levels of 3 solutions. We were split into groups and each person had to bring a household solution from around the house.…

    • 315 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Romeo and Juliet
    • 478 Words
    • 2 Pages

    Romeo and Juliet

    Acidic solutions contain higher concentrations of H+ ions than pure water and have pH values below 7. Basic, or alkaline, solutions contain lower concentrations of H+ ions than pure water and have pH values about 7.…

    • 478 Words
    • 2 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Biology
    • 2483 Words
    • 12 Pages

    Biology

    pH is a measurement of hydrogen ion concentration. It measures rather the solution is acid, base, or neutral.…

    • 2483 Words
    • 12 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Salt Abuse Lab Report
    • 522 Words
    • 3 Pages

    Salt Abuse Lab Report

    To test whether pH of salts are related to acidity and basicity of neutralized acid or base, three groups of a base and an acid other than the ones used in the experiment can be neutralized, group 1 being a strong acid and a strong base, group 2 being a strong acid and a weak base, and finally group 3 being a weak acid and a strong base. If the results show that salt formed by group one is neutral, group two acidic and three basic when dissolved in water solution, it will be determined that the neutralized acid and base’ pH does matter and all salts vary in…

    • 522 Words
    • 3 Pages
    Good Essays
    Read More

Related Topics