1021 Section: 427 Benton Smith Discussion of Results The goals of this experiment were to find the identities of four unknown compounds and to first determine the pH. We then were required to run a series of anion and cation tests to determine the composition of the unknown solutions. To get more knowledge about these solutions we ran a series of dilutions to see if anything changed. Finally we tested the pH of household items and ran titration experiments with them
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the pollutants in the air. Because they are such unique organisms‚ they accumulate different metal anions in the air than other organisms‚ like plants do‚ for example. Lichens attract toxic metal ions. An ion is a charged atom. If the ion has a positive charge‚ it is a cation. An ion with a negative charge is an anion. During the ion exchange process‚ Hydrogen‚ an anion‚ is released and metal cations move in. This process occurs when lichens are exposed to polluted air. When the lichens are dropped
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the following solutes: a. Ions/electrolyte: Sodium ion b. Colloids: Proteins c. Nonelectrolytes: Glucose 6. List the major extracellular and intracellular cations and anions a. Extracellular cations: Sodium anions: Chloride b. Intracellular cations: Potassium anions: Phosphates and Protein 7. Within a fluid compartment‚ the total number of positive charges must be equal to the total number of negative charges . 8. Name four of
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CHEM 208 Module 2: List the steps of the scientific method: Scientific Method: performing a study in organized step: (led to enunciation of Law of Conversation of Mass and Matter) 1. Performing experiments: a. An experiment is a set of steps (procedures) that are performed under controlled
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Chapter 8: Salts 1. Salts A salt is an ionic compound. The anion part comes from the acid while the cation part comes from a base. Example: KCl‚ KOH(aq) + HCl(aq) KCl(aq) + H2O(l) A salt is a compound formed when the hydrogen ion. H+ from an acid is replaced by a metal ion or an ammonium ion‚ NH4+. Salts Nitrate salts Carbonate salts Chloride salts Soluble All nitrate salts Potassium carbonate‚ K2CO3 Ammonium carbonate‚ (NH4)2CO3 Sodium carbonate‚ Na2CO3 All chloride salts Except Sulphate salts
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solutes: a. Ions/electrolytes Sodium b. Colloids Proteins c. Nonelectrolytes Glucose 6. List the major extracellular and intracellular cations and anions a. Extracellular cations: Sodium‚ Potassium‚ Calcium and Magnesium anions: Bicarbonate‚ Sulfate‚ Protein‚ Organic acids‚ Phosphates‚ and Chloride b. Intracellular cations: Sodium‚ Potassium and Magnesium anions: Bicarbonate‚ Sulfate‚ Protein‚ Phosphates and Chloride 7. Within a fluid compartment‚ the total number of positive charges must
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Biochemistry Exam I Terminology Boiling point is the temperature at which the vapor pressure of the liquid equals the pressure surrounding the liquid. At this temperature the liquid phase changes into the gaseous phase (also a colligative property) Melting point is the temperature at which the solid and liquid phases are in equilibrium. At this temperature the solid state changes into a liquid phase (also a colligative property) Specific heat is the amount of energy (in joules or calories) needed
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Two main classifications of single-replacement reactions are cation replacement reactions and anion replacement reactions. Cations are positively charged ions‚ which consists of all metals‚ while anions are negatively charged. Amrita University explains that in a cation replacement reaction‚ “One cation replaces another” and in an anion replacement reaction‚ “one anion replaces another from its solution.” When magnesium and copper sulfate react‚ a single replacement
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including Cations and Anions because it is the background information needed to carry out this investigation. An ion is an atom or molecule which the total number of electrons isn’t equal to the total number of protons giving the atom a positive or negative electrical charge. When an atom is attracted to another atom because it has an unequal number of electrons and protons‚ the atom is called an Ion. If the atom has more electrons than protons this means that it’s a negatively charged ion or Anion. Different
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SOLID STATE MARKS = 04 SOLID STATE A solid is that form of matter that possesses a definite shape and a definite volume. There are two types of solids: Crystalline solids: Solids with a definite geometric pattern and are anisotropic in nature. Examples: Iron‚ copper‚ silver‚ sulphur etc. are some elements which form crystalline solids. Potassium chloride‚ sodium nitrate etc are some of the compounds‚ which are crystalline
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