Ionic Compounds 1. What is the formula for aluminum phosphate
... 2. A 87.2-g sample of SrCl2 is dissolved in 112.5 mL of solution. Calculate the molarity of this solution. 3. How many grams of NaCl are contained in 350. mL of a 0.171 M solution of sodium chloride? 4. What mass of calcium chloride, CaCl2, is in 3.576 L of a 1.56 M solution? 5. Which of the followi ...
... 2. A 87.2-g sample of SrCl2 is dissolved in 112.5 mL of solution. Calculate the molarity of this solution. 3. How many grams of NaCl are contained in 350. mL of a 0.171 M solution of sodium chloride? 4. What mass of calcium chloride, CaCl2, is in 3.576 L of a 1.56 M solution? 5. Which of the followi ...
Final Review: L17-25
... Boyle’s Law states that the volume of a gas is inversely proportional to the pressure at constant temperature. ...
... Boyle’s Law states that the volume of a gas is inversely proportional to the pressure at constant temperature. ...
Chem 400 Chem 150 REVIEW SHEET Amanda R
... Atoms, Molecules, Ions – fundamentals of elements o Protons, electrons and neutrons make up an atom o Atoms make up molecules, all matter is made of atoms o Protons and neutrons are in the nucleus, and electrons are buzzing outside the nucleus around the nucleus in orbitals o # of protons defines an ...
... Atoms, Molecules, Ions – fundamentals of elements o Protons, electrons and neutrons make up an atom o Atoms make up molecules, all matter is made of atoms o Protons and neutrons are in the nucleus, and electrons are buzzing outside the nucleus around the nucleus in orbitals o # of protons defines an ...
File
... acid catalyst, such as H2SO4(aq), is used to increase the rate of this organic reaction, along with some careful heating. ...
... acid catalyst, such as H2SO4(aq), is used to increase the rate of this organic reaction, along with some careful heating. ...
chemistry important question i
... Transition metals and their compounds are generally found to be good catalysts. What are the following substances? Give one example of each. (i) Food preservatives (ii) Synthetic detergents (iii) Antacids Write the structures and names of all the stereoisomers of the following compounds: (i) [Co(en) ...
... Transition metals and their compounds are generally found to be good catalysts. What are the following substances? Give one example of each. (i) Food preservatives (ii) Synthetic detergents (iii) Antacids Write the structures and names of all the stereoisomers of the following compounds: (i) [Co(en) ...
Sample
... buffer system. The most important of these is the carbon dioxide/ hydrogencarbonate ion buffer system. ...
... buffer system. The most important of these is the carbon dioxide/ hydrogencarbonate ion buffer system. ...
Chemical Reactions
... How to Balance • If you are starting with words, write the equation using formulas. Example: hydrogen and oxygen gases react to form water. (Hint: diatomics!) H2 + ...
... How to Balance • If you are starting with words, write the equation using formulas. Example: hydrogen and oxygen gases react to form water. (Hint: diatomics!) H2 + ...
Chapter 2 Study Guides
... 13. The prefix mono-‐ means “one,” and the prefix poly-‐ means “many.” How are these meanings related to the terms monomer and polymer? ...
... 13. The prefix mono-‐ means “one,” and the prefix poly-‐ means “many.” How are these meanings related to the terms monomer and polymer? ...
Chemical Reactions
... energy-releasing reaction. Label the type of reaction for each, label the energy level for the reactants and products, then draw an arrow on each to show the energy of activation. ...
... energy-releasing reaction. Label the type of reaction for each, label the energy level for the reactants and products, then draw an arrow on each to show the energy of activation. ...
Chemistry - Target Publications
... Molarity of the solution. [Given: Density of solution is 1.20 g mL−1 and molar mass of glucose is 180 g mol−1] iii. Resistance of conductivity cell filled with 0.1 M KCl solution is 100 ohms. If the resistance of the same cell when filled with 0.02 M KCl solution is 520 ohms, calculate the conductiv ...
... Molarity of the solution. [Given: Density of solution is 1.20 g mL−1 and molar mass of glucose is 180 g mol−1] iii. Resistance of conductivity cell filled with 0.1 M KCl solution is 100 ohms. If the resistance of the same cell when filled with 0.02 M KCl solution is 520 ohms, calculate the conductiv ...
Honors Chemistry II Review 1. Express the following in scientific
... 3. Gemstones are weighed in carats, with 1 carat = 200mg. What is the mass in grams of the Hope Diamond, the world’s largest blue diamond at 44.4 carats? 4. For each of the following groups, determine the location, number of valence electrons, and charge of an ion in that group: (Alkali Metals, Halo ...
... 3. Gemstones are weighed in carats, with 1 carat = 200mg. What is the mass in grams of the Hope Diamond, the world’s largest blue diamond at 44.4 carats? 4. For each of the following groups, determine the location, number of valence electrons, and charge of an ion in that group: (Alkali Metals, Halo ...
experiment 10 - Faculty Web Pages
... Consider this generalized reaction between two ionic compounds: AB + CD AD + CB where A, B, C, and D all exist as ions in solution. Will a reaction happen, and if so, what will be the products? Each of the positive ions could combine with the negative ion of the other compound, i.e. A+ and D¯ and C+ ...
... Consider this generalized reaction between two ionic compounds: AB + CD AD + CB where A, B, C, and D all exist as ions in solution. Will a reaction happen, and if so, what will be the products? Each of the positive ions could combine with the negative ion of the other compound, i.e. A+ and D¯ and C+ ...
one
... • Step 1 – count the number of atoms of each element on each side of the equation. • Step 2 – change one or more coefficients until the equation is balanced. – Start by balancing an element that appears in only one reactant and product. – Once one element is balanced, proceed to balance another, and ...
... • Step 1 – count the number of atoms of each element on each side of the equation. • Step 2 – change one or more coefficients until the equation is balanced. – Start by balancing an element that appears in only one reactant and product. – Once one element is balanced, proceed to balance another, and ...
Chemical Reactions
... elements) combine and form a compound. (Sometimes these are called combination or addition reactions.) ...
... elements) combine and form a compound. (Sometimes these are called combination or addition reactions.) ...
Begin Chemical Equations Practice
... • In a chemical reaction, the materials to the left of the arrow are the reactants. Reactants are consumed in the reaction. • The arrow is like an equal sign in math. It can be read “react to produce” or “produces” or “forms”. • The materials to the right of the arrow are the products. They form as ...
... • In a chemical reaction, the materials to the left of the arrow are the reactants. Reactants are consumed in the reaction. • The arrow is like an equal sign in math. It can be read “react to produce” or “produces” or “forms”. • The materials to the right of the arrow are the products. They form as ...
Name________________ Hour____ Chapter 11 Review 1. Name
... 2 atoms of solid aluminum react with 6 molecules of liquid water to produce 3 molecules of hydrogen gas and 2 formula units of solid aluminum hydroxide. 4. Write in symbols: 2 formula units of solid lead (IV) oxide decomposes in the presence of heat to produce 2 formula units of solid lead (II) oxid ...
... 2 atoms of solid aluminum react with 6 molecules of liquid water to produce 3 molecules of hydrogen gas and 2 formula units of solid aluminum hydroxide. 4. Write in symbols: 2 formula units of solid lead (IV) oxide decomposes in the presence of heat to produce 2 formula units of solid lead (II) oxid ...
Reactions Homework Packet
... Determine if the following chemicals react when they come into contact with each other. Identify the reaction type to the left of the problem number (single replacement or double replacement). If the reaction occurs predict the products and write a balanced equation using symbols (g), (aq), (l), (s) ...
... Determine if the following chemicals react when they come into contact with each other. Identify the reaction type to the left of the problem number (single replacement or double replacement). If the reaction occurs predict the products and write a balanced equation using symbols (g), (aq), (l), (s) ...
Lewis acid catalysis
In Lewis acid catalysis of organic reactions, a metal-based Lewis acid acts as an electron pair acceptor to increase the reactivity of a substrate. Common Lewis acid catalysts are based on main group metals such as aluminum, boron, silicon, and tin, as well as many early (titanium, zirconium) and late (iron, copper, zinc) d-block metals. The metal atom forms an adduct with a lone-pair bearing electronegative atom in the substrate, such as oxygen (both sp2 or sp3), nitrogen, sulfur, and halogens. The complexation has partial charge-transfer character and makes the lone-pair donor effectively more electronegative, activating the substrate toward nucleophilic attack, heterolytic bond cleavage, or cycloaddition with 1,3-dienes and 1,3-dipoles.Many classical reactions involving carbon–carbon or carbon–heteroatom bond formation can be catalyzed by Lewis acids. Examples include the Friedel-Crafts reaction, the aldol reaction, and various pericyclic processes that proceed slowly at room temperature, such as the Diels-Alder reaction and the ene reaction. In addition to accelerating the reactions, Lewis acid catalysts are able to impose regioselectivity and stereoselectivity in many cases.Early developments in Lewis acid reagents focused on easily available compounds such as TiCl4, BF3, SnCl4, and AlCl3. The relative strengths of these (and other) Lewis acids may be estimated from NMR spectroscopy by the Childs method or the Gutmann-Beckett method. Over the years, versatile catalysts bearing ligands designed for specific applications have facilitated improvement in both reactivity and selectivity of Lewis acid-catalyzed reactions. More recently, Lewis acid catalysts with chiral ligands have become an important class of tools for asymmetric catalysis.Challenges in the development of Lewis acid catalysis include inefficient catalyst turnover (caused by catalyst affinity for the product) and the frequent requirement of two-point binding for stereoselectivity, which often necessitates the use of auxiliary groups.