Molarity = moles of solute liters of solution M1V1 = M2V2
... two behaviors: -In endothermic process solubility increases with the increase in temperature and vice versa. -i.e. solubility of potassium nitrate increases with the increase in temperature. -In exothermic process solubility decrease with the increase in temperature. -i.e. solubility of calcium oxid ...
... two behaviors: -In endothermic process solubility increases with the increase in temperature and vice versa. -i.e. solubility of potassium nitrate increases with the increase in temperature. -In exothermic process solubility decrease with the increase in temperature. -i.e. solubility of calcium oxid ...
Chapter 7 - Angelfire
... for chemicals (calcium carbonate is limestone, sodium chloride is salt, and hydrogen oxide is water) • Common names don’t give information about chemical composition. ...
... for chemicals (calcium carbonate is limestone, sodium chloride is salt, and hydrogen oxide is water) • Common names don’t give information about chemical composition. ...
Topic 4
... insoluble salt, but we haven’t describe how to determine which species fall under these terms. To be able to write chemical reactions correctly, we will need to understand solubility and how strong and weak species dissociate in water. The first thing we will cover is the solubility rules for ionic ...
... insoluble salt, but we haven’t describe how to determine which species fall under these terms. To be able to write chemical reactions correctly, we will need to understand solubility and how strong and weak species dissociate in water. The first thing we will cover is the solubility rules for ionic ...
SiO 2 - Wits Structural Chemistry
... four, Si4H10 They have greater than number of electrons, strong intermolecular attractive forces and are less volatile than the hydrocarbons. Silanes are more reactive and are prepared commercially by reducing silica, SiO2 with Al under high pressure of H2 in a molten salt mixture of NaCl and AlCl3. ...
... four, Si4H10 They have greater than number of electrons, strong intermolecular attractive forces and are less volatile than the hydrocarbons. Silanes are more reactive and are prepared commercially by reducing silica, SiO2 with Al under high pressure of H2 in a molten salt mixture of NaCl and AlCl3. ...
Chapter 3 Chemical Compounds
... named using the element name plus the word ‘ion’. So, Na+ is called the sodium ion and Ca2+ is called the calcium ion. For main group metals (metals in groups with an ‘A’ in their column number), the positive charge of the metal cation is equal to the metal’s column number. So, alkali metal ions (g ...
... named using the element name plus the word ‘ion’. So, Na+ is called the sodium ion and Ca2+ is called the calcium ion. For main group metals (metals in groups with an ‘A’ in their column number), the positive charge of the metal cation is equal to the metal’s column number. So, alkali metal ions (g ...
Elements, Compounds and Mixtures Elements are the simplest type
... This forms between metals and non-metal. The metal loses its outer electrons becoming a positive ion. The non-metal takes these electrons to form a negative ion. In both cases the ion ends up with a full outer electron shell, like the Noble gases. The electrostatic force of attraction holds these op ...
... This forms between metals and non-metal. The metal loses its outer electrons becoming a positive ion. The non-metal takes these electrons to form a negative ion. In both cases the ion ends up with a full outer electron shell, like the Noble gases. The electrostatic force of attraction holds these op ...
ch5_f08
... arranges metals according to their ease of oxidation • They can be used to predict reactions ...
... arranges metals according to their ease of oxidation • They can be used to predict reactions ...
Multiple Pathways To Success Quarter 3 Learning Module
... 2. Consider the terms “monatomic” and “polyatomic” as they are used in Model 1. Write a definition for each of these terms. It may be helpful to break the words apart (i.e., poly – atomic). Make sure your group comes to consensus. Monatomic— ...
... 2. Consider the terms “monatomic” and “polyatomic” as they are used in Model 1. Write a definition for each of these terms. It may be helpful to break the words apart (i.e., poly – atomic). Make sure your group comes to consensus. Monatomic— ...
Bonding and Structure - Lesmahagow High School
... All ionic compounds are solids at room temp so have high melting and boiling points. This is because the ionic bonds holding the lattice together are strong and a lot of energy is required to break them. (image from bbc.co.uk) ...
... All ionic compounds are solids at room temp so have high melting and boiling points. This is because the ionic bonds holding the lattice together are strong and a lot of energy is required to break them. (image from bbc.co.uk) ...
Biomaterials Based on Polymers, Fibers, and Textiles
... one end of a polar bond has a partial positive charge and the other end is a partial negative charge ...
... one end of a polar bond has a partial positive charge and the other end is a partial negative charge ...
ELECTROLYTES AND NONELECTROLYTES Lec.3
... ♠The situation is different in an aqueous solution of sugar, a nonelectrolyte. The sugar molecules, surrounded by water molecules, are neutral. When a pair of electrodes is placed in this solution, the sugar molecules are not attracted by either electrode. Consequently no electric current flows thro ...
... ♠The situation is different in an aqueous solution of sugar, a nonelectrolyte. The sugar molecules, surrounded by water molecules, are neutral. When a pair of electrodes is placed in this solution, the sugar molecules are not attracted by either electrode. Consequently no electric current flows thro ...
Chemical Compounds
... ___________________________________ Multiple Oxidation States Some atoms can form more than one possible ion. For example, iron. Iron can be either a +2 or +3. These possible ionic states are also called “oxidation states” for reasons that will be clearer when we discuss electrochemistry. ...
... ___________________________________ Multiple Oxidation States Some atoms can form more than one possible ion. For example, iron. Iron can be either a +2 or +3. These possible ionic states are also called “oxidation states” for reasons that will be clearer when we discuss electrochemistry. ...
File
... D) An observation explains why nature does something. E) A scientific law summarizes a series of related observations 3) Which of the following statements about the phases of matter is TRUE? A) In both solids and liquids, the atoms or molecules pack closely to one another. B) Solids are highly compr ...
... D) An observation explains why nature does something. E) A scientific law summarizes a series of related observations 3) Which of the following statements about the phases of matter is TRUE? A) In both solids and liquids, the atoms or molecules pack closely to one another. B) Solids are highly compr ...
Name:_____________ Chemistry 114 Second Hour Exam
... HF will form intermolecular hydrogen bonds, HCl won’t; this will give HF stronger intermolecular interactions and give it a higher boiling point. I2 has a lower vapor pressure than Cl2 at room temperature. I2 is larger that Cl2, this will make its London force larger to give it stronger intermolecul ...
... HF will form intermolecular hydrogen bonds, HCl won’t; this will give HF stronger intermolecular interactions and give it a higher boiling point. I2 has a lower vapor pressure than Cl2 at room temperature. I2 is larger that Cl2, this will make its London force larger to give it stronger intermolecul ...
Midterm Study Guide with Answers
... Lavoisier helped transform chemistry from a science of observation to a science of measurement. Toward this end, he developed a balance that could measure small differences in mass. He was part of a general movement toward basing conclusions on experimental evidence. PTS: 1 DIF: L2 REF: p. 15 OBJ: 1 ...
... Lavoisier helped transform chemistry from a science of observation to a science of measurement. Toward this end, he developed a balance that could measure small differences in mass. He was part of a general movement toward basing conclusions on experimental evidence. PTS: 1 DIF: L2 REF: p. 15 OBJ: 1 ...
Chapter 2 cont’
... number of protons in the atom does not change in a chemical reaction however, many reactions involve transferring electrons from one atom to another ...
... number of protons in the atom does not change in a chemical reaction however, many reactions involve transferring electrons from one atom to another ...
aq - Wikispaces
... • Do the sheet “uncertainty” • The sheet will be corrected in class. • Procedures for an in-class exercise • Make sure your first and last name are on the sheet. • Complete as much of the sheet as you can in the time allotted. Use a pencil or dark colour pen. • When the time is up, follow the teache ...
... • Do the sheet “uncertainty” • The sheet will be corrected in class. • Procedures for an in-class exercise • Make sure your first and last name are on the sheet. • Complete as much of the sheet as you can in the time allotted. Use a pencil or dark colour pen. • When the time is up, follow the teache ...
Ion exchange chromatography
... In cation exchange chromatography, raising the pH of the mobile phase buffer will cause the molecule to become less protonated and hence less positively charged. The result is that the molecule no longer can form a ionic interaction with the negatively charged solid support, which ultimately results ...
... In cation exchange chromatography, raising the pH of the mobile phase buffer will cause the molecule to become less protonated and hence less positively charged. The result is that the molecule no longer can form a ionic interaction with the negatively charged solid support, which ultimately results ...
Document
... 14. When the pH of a solution is greater than the pKa of an acid, a. the deprotonated form predominates. b. the acid decomposes. c. the protonated form predominates. d. the protonated and deprotonated forms exist at equal concentrations. e. the acid absorbs all the protons in solution. 15. Phosphori ...
... 14. When the pH of a solution is greater than the pKa of an acid, a. the deprotonated form predominates. b. the acid decomposes. c. the protonated form predominates. d. the protonated and deprotonated forms exist at equal concentrations. e. the acid absorbs all the protons in solution. 15. Phosphori ...
E b
... Activity coefficient of an individual ion is a theoretical quantity. Ions exist in solutions only in combinations with oppositely charged co-ions. Therefore we cannot experimentally measure the activity coefficient of an individual ion. In experiment, we can only able to determinate the mean activi ...
... Activity coefficient of an individual ion is a theoretical quantity. Ions exist in solutions only in combinations with oppositely charged co-ions. Therefore we cannot experimentally measure the activity coefficient of an individual ion. In experiment, we can only able to determinate the mean activi ...
Document
... Think About It Make sure that the ratio in each empirical formula is the same as that in the corresponding molecular formula and that the subscripts are the smallest possible whole numbers. In part (a), for example, the ratio of C:H:O in the molecular formula is 6:12:6, which is equal to 1:2:1, the ...
... Think About It Make sure that the ratio in each empirical formula is the same as that in the corresponding molecular formula and that the subscripts are the smallest possible whole numbers. In part (a), for example, the ratio of C:H:O in the molecular formula is 6:12:6, which is equal to 1:2:1, the ...
Chemical properties of amines:
... values slightly higher than amonia. Thus aliphatic amines are stronger bases than amonia. Like amonia, compounds with amino groups can also neutralize hydronium ions. This neutralization occurs very rapidly and essentially goes to completion at room temperature. Protonated amine cations can neutrali ...
... values slightly higher than amonia. Thus aliphatic amines are stronger bases than amonia. Like amonia, compounds with amino groups can also neutralize hydronium ions. This neutralization occurs very rapidly and essentially goes to completion at room temperature. Protonated amine cations can neutrali ...
Solution Stoichiometry - Angelo State University
... • For a chemical reaction to occur, the reacting species have to come in close contact with each other. Most chemical reactions are performed in a solution (or in the gas phase) rather than in the solid state. • A solution consists of a smaller amount of one substance, the solute (usually a liquid o ...
... • For a chemical reaction to occur, the reacting species have to come in close contact with each other. Most chemical reactions are performed in a solution (or in the gas phase) rather than in the solid state. • A solution consists of a smaller amount of one substance, the solute (usually a liquid o ...
Ionic compound
In chemistry, an ionic compound is a chemical compound in which ions are held together in a structure by electrostatic forces termed ionic bonds. The positively charged ions are called cations and the negatively charged ions are called anions. These can be simple ions such as the sodium (Na+) and chloride (Cl−) in sodium chloride, or polyatomic species such as the carbonate ion (CO32−) in calcium carbonate. Individual ions within an ionic compound usually have multiple nearest neighbours, so are not considered to be part of molecules, but instead part of a continuous three-dimensional network, usually in a crystalline structure.Ionic compounds typically have high melting and boiling points, and are hard and brittle. As solids they are almost always electrically insulating, but when melted or dissolved they become highly conductive, because the ions are mobilized.Ionic compounds without the acidic hydrogen ion (H+), or the basic ions hydroxide (OH−) or oxide (O2−), are also known as salts and can be formed by acid-base reactions. Ionic compounds containing hydrogen ions are classified as acids and compounds containing hydroxide or oxide ions are classified as bases.