ANALYSIS OF THE SILVER GROUP CATIONS
... 2. In separating these ions from others, it is important to add enough HCl to get complete precipitation. Cold HCl is used because this gives a more complete precipitation of the more soluble salt PbCl2. An excess of HCl must be avoided because soluble complex ions such as AgCl2- or PbCl42may be for ...
... 2. In separating these ions from others, it is important to add enough HCl to get complete precipitation. Cold HCl is used because this gives a more complete precipitation of the more soluble salt PbCl2. An excess of HCl must be avoided because soluble complex ions such as AgCl2- or PbCl42may be for ...
Introduction
... place in an aqueous environment. What does that mean? Terms: ◦ Solution: homogeneous mixture of two or more substances ◦ Solute: substance present in smaller amount ◦ Solvent: substance present in greater amount ◦ Aqueous solution: solvent is water ...
... place in an aqueous environment. What does that mean? Terms: ◦ Solution: homogeneous mixture of two or more substances ◦ Solute: substance present in smaller amount ◦ Solvent: substance present in greater amount ◦ Aqueous solution: solvent is water ...
Complete the following equations
... (a) Reaction favors low temperature because heat is a product – increasing the temperature (by adding heat) will shift the equilibrium to the left; (b) Reaction favors high pressure because there are less gas molecules in the product; as reaction progresses, the pressure will drop. Increasing the pr ...
... (a) Reaction favors low temperature because heat is a product – increasing the temperature (by adding heat) will shift the equilibrium to the left; (b) Reaction favors high pressure because there are less gas molecules in the product; as reaction progresses, the pressure will drop. Increasing the pr ...
Step 2
... Now they both have a ____ outer shell and are more _____. The formula for this molecule is H2. When two or more atoms bond by sharing electrons we call it ____________ BONDING. This type of bonding normally occurs between _______ atoms. It causes the atoms in a molecule to be held together very stro ...
... Now they both have a ____ outer shell and are more _____. The formula for this molecule is H2. When two or more atoms bond by sharing electrons we call it ____________ BONDING. This type of bonding normally occurs between _______ atoms. It causes the atoms in a molecule to be held together very stro ...
Chapter 4
... Halides are soluble except Ag+, Pb+2, and Hg2+2 Most sulfates are soluble, except Pb+2, Ba+2, Hg+2,and Ca+2 ...
... Halides are soluble except Ag+, Pb+2, and Hg2+2 Most sulfates are soluble, except Pb+2, Ba+2, Hg+2,and Ca+2 ...
New AQA C3 revison guide
... 2. Like metals, a more reactive halogen will displace a less reactive one: e.g. chlorine + potassium bromide = bromine + potassium chloride Cl2 + 2KI = Br2 + 2KCl or bromine + sodium iodide = iodine + sodium bromide Br2 + 2NaI = I2 + 2KBr THE TRANSITION METALS This is the block which appears in the ...
... 2. Like metals, a more reactive halogen will displace a less reactive one: e.g. chlorine + potassium bromide = bromine + potassium chloride Cl2 + 2KI = Br2 + 2KCl or bromine + sodium iodide = iodine + sodium bromide Br2 + 2NaI = I2 + 2KBr THE TRANSITION METALS This is the block which appears in the ...
Step 2 - The Grange School Blogs
... Now they both have a ____ outer shell and are more _____. The formula for this molecule is H2. When two or more atoms bond by sharing electrons we call it ____________ BONDING. This type of bonding normally occurs between _______ atoms. It causes the atoms in a molecule to be held together very stro ...
... Now they both have a ____ outer shell and are more _____. The formula for this molecule is H2. When two or more atoms bond by sharing electrons we call it ____________ BONDING. This type of bonding normally occurs between _______ atoms. It causes the atoms in a molecule to be held together very stro ...
Sample Exercise 2.1 Illustrating the Size of an Atom
... (a) The number of protons (22) is the atomic number of the element. By referring to a periodic table or list of elements, we see that the element with atomic number 22 is titanium (Ti). The mass number of this isotope of titanium is 22 + 26 = 48 (the sum of the protons and neutrons). Because the ion ...
... (a) The number of protons (22) is the atomic number of the element. By referring to a periodic table or list of elements, we see that the element with atomic number 22 is titanium (Ti). The mass number of this isotope of titanium is 22 + 26 = 48 (the sum of the protons and neutrons). Because the ion ...
CHM 312
... lustre. Form alloys with other metals. for example, Ti-Fe, Mn-Fe. They have very high melting and boiling points, higher than 1000ºC[Except La and Ag-920 and 961 ºC respectively] Also Zn-420, Cd321, Hg melts at -38 ºC[this is because of complete d-shell, so the d-shell donot take part in metallic bo ...
... lustre. Form alloys with other metals. for example, Ti-Fe, Mn-Fe. They have very high melting and boiling points, higher than 1000ºC[Except La and Ag-920 and 961 ºC respectively] Also Zn-420, Cd321, Hg melts at -38 ºC[this is because of complete d-shell, so the d-shell donot take part in metallic bo ...
W2(SO4)3 + Mg3(PO4)2 --------> WPO4 + MgSO4
... For the following example, use the reaction below to solve the problems that follow: 2KOH + H2SO4 -------> 2HOH + K2SO4 If you begin with 2.5 moles of potassium hydroxide, how many moles of water could you produce? If you begin with 2.5 moles of sulfuric acid, how many moles of water could you produ ...
... For the following example, use the reaction below to solve the problems that follow: 2KOH + H2SO4 -------> 2HOH + K2SO4 If you begin with 2.5 moles of potassium hydroxide, how many moles of water could you produce? If you begin with 2.5 moles of sulfuric acid, how many moles of water could you produ ...
Ch02-sample-and-practice-set-2
... (a) The number of protons (22) is the atomic number of the element. By referring to a periodic table or list of elements, we see that the element with atomic number 22 is titanium (Ti). The mass number of this isotope of titanium is 22 + 26 = 48 (the sum of the protons and neutrons). Because the ion ...
... (a) The number of protons (22) is the atomic number of the element. By referring to a periodic table or list of elements, we see that the element with atomic number 22 is titanium (Ti). The mass number of this isotope of titanium is 22 + 26 = 48 (the sum of the protons and neutrons). Because the ion ...
Triple Award - Cheltenham College
... Recall the charge on common ions – both metals and non-‐metals – and compound ions e.g. SO42-‐, CO32-‐ , NH4+ , NO3-‐ . Deduce the charge of an ion from the electronic configuration of the ...
... Recall the charge on common ions – both metals and non-‐metals – and compound ions e.g. SO42-‐, CO32-‐ , NH4+ , NO3-‐ . Deduce the charge of an ion from the electronic configuration of the ...
07 Aromatic compounds. Acids of arom.s.,their salts, esters,amides
... C. Destruction of Menadione Sodium Bisulfite in base medium to sodium sulphite and 2methyl-1,4- naphthoquinone. 2-Methyl-1,4- naphthoquinone may be identified by its melting point (104-107*C). O ...
... C. Destruction of Menadione Sodium Bisulfite in base medium to sodium sulphite and 2methyl-1,4- naphthoquinone. 2-Methyl-1,4- naphthoquinone may be identified by its melting point (104-107*C). O ...
+ H 2 O
... Electrolytes and Nonelectrolytes Electrolytes- compounds that conduct an electric current in aqueous solution, or in the molten state – all ionic compounds are electrolytes because they dissociate into ions (they are also called “salts”) barium sulfate- will conduct when molten, but is insoluble ...
... Electrolytes and Nonelectrolytes Electrolytes- compounds that conduct an electric current in aqueous solution, or in the molten state – all ionic compounds are electrolytes because they dissociate into ions (they are also called “salts”) barium sulfate- will conduct when molten, but is insoluble ...
Document
... and is therefore partially negative compared to hydrogen. The oxygen atom is partially negative ...
... and is therefore partially negative compared to hydrogen. The oxygen atom is partially negative ...
Unit 10
... Briefly describe the reaction of sodium with cold water? The small piece of sodium melts into a silvery ball. It moves across the surface of water with a hissing sound. If its movement is stopped, it burns with a golden yellow flame. ...
... Briefly describe the reaction of sodium with cold water? The small piece of sodium melts into a silvery ball. It moves across the surface of water with a hissing sound. If its movement is stopped, it burns with a golden yellow flame. ...
N5 Chemistry Summary notes 2017
... together with covalent bonds. Some elements exist as diatomic molecules (a molecule made of two atoms) There are seven non-metal elements in the periodic table which occur as diatomic molecules. They are : hydrogen (H2) oxygen (O2) O nitrogen (N2) fluorine (F2) chlorine (Cl2) bromine (Br2) iodine (I ...
... together with covalent bonds. Some elements exist as diatomic molecules (a molecule made of two atoms) There are seven non-metal elements in the periodic table which occur as diatomic molecules. They are : hydrogen (H2) oxygen (O2) O nitrogen (N2) fluorine (F2) chlorine (Cl2) bromine (Br2) iodine (I ...
X012/12/02
... of potassium iodide solution. Pour these into a dry 100 cm3 glass beaker and place the beaker on the bench. 2. Measure out 5 cm3 of hydrogen peroxide solution and start the timer. 3. Add the hydrogen peroxide solution to the beaker. When the blue/black colour just appears, stop the timer and rec ...
... of potassium iodide solution. Pour these into a dry 100 cm3 glass beaker and place the beaker on the bench. 2. Measure out 5 cm3 of hydrogen peroxide solution and start the timer. 3. Add the hydrogen peroxide solution to the beaker. When the blue/black colour just appears, stop the timer and rec ...
A2 Module 2814: Chains, Rings and Spectroscopy
... One set of ligands may be displaced by others that form stronger co-ordinate bonds, or which are present in very high concentration – this is called ligand substitution: When copper(II) sulfate solution is treated with dilute aqueous ammonia, the solution starts blue because of the Cu(H2O)62+ ion. I ...
... One set of ligands may be displaced by others that form stronger co-ordinate bonds, or which are present in very high concentration – this is called ligand substitution: When copper(II) sulfate solution is treated with dilute aqueous ammonia, the solution starts blue because of the Cu(H2O)62+ ion. I ...
b) Mole
... 31. What is the molecular formula of sodium zincate? a) NaZn(OH)3 b) NaZn(OH)4 c) Na2Zn(OH)4 ...
... 31. What is the molecular formula of sodium zincate? a) NaZn(OH)3 b) NaZn(OH)4 c) Na2Zn(OH)4 ...
The Synthesis and Analysis of Copper (II) Carboxylates
... Asample of 2.76 g (0.0125 moll of basic copper carbonate was placed in a 500-mL Erlenmeyer flask with 50 mL of water. A0.05 mol sample of the appropriate carboxylic acid was dissolved in a minimum amount of water, or, if the acid was insoluble in water, i t was slurried with about 50 mL of water. Th ...
... Asample of 2.76 g (0.0125 moll of basic copper carbonate was placed in a 500-mL Erlenmeyer flask with 50 mL of water. A0.05 mol sample of the appropriate carboxylic acid was dissolved in a minimum amount of water, or, if the acid was insoluble in water, i t was slurried with about 50 mL of water. Th ...
Homework Solutions Week 6
... 2So [Ag ] = Ksp/ [SO4 ] = 1.5x10-5/0.048 = .0177 M this is lower than .0300 M so some of the silver has already precipitated at this level of sulfate. .0177/0.0300 x 100% = 59% so 59% of the original silver is left in solution and 41% has precipitated. What can we learn from this? We can not use ...
... 2So [Ag ] = Ksp/ [SO4 ] = 1.5x10-5/0.048 = .0177 M this is lower than .0300 M so some of the silver has already precipitated at this level of sulfate. .0177/0.0300 x 100% = 59% so 59% of the original silver is left in solution and 41% has precipitated. What can we learn from this? We can not use ...
Review Packet - Daigneault Chem.is.try
... j. What charge ion would phosphorus form?_________ 13. What do elements lose or gain when ions are formed? 14. Describe how the periodic table is organized. ...
... j. What charge ion would phosphorus form?_________ 13. What do elements lose or gain when ions are formed? 14. Describe how the periodic table is organized. ...
2005 - NESACS
... 42. The hydrogen emission spectrum for galaxy NGC 3310 is shown below. Marked on the spectrum with a vertical line is the red hydrogen emission line, Hα, at 6562.8 Å (656.2 nm) that originates from the Balmer series (32) at the spot where it would be found in a hydrogen spectrum produced in a labor ...
... 42. The hydrogen emission spectrum for galaxy NGC 3310 is shown below. Marked on the spectrum with a vertical line is the red hydrogen emission line, Hα, at 6562.8 Å (656.2 nm) that originates from the Balmer series (32) at the spot where it would be found in a hydrogen spectrum produced in a labor ...
Summer Study Assignment – Honors Chem 2/AP Chemistry
... 31. Write the electron configuration using the Noble Gas core method for californium. 32. Write a balanced equation for the following double replacement reactions: a. Calcium hydroxide (aq) + nitric acid (aq) b. Chromium (III) sulfite (aq) + sulfuric acid (aq) c. Zinc chloride (aq) + ammonium su ...
... 31. Write the electron configuration using the Noble Gas core method for californium. 32. Write a balanced equation for the following double replacement reactions: a. Calcium hydroxide (aq) + nitric acid (aq) b. Chromium (III) sulfite (aq) + sulfuric acid (aq) c. Zinc chloride (aq) + ammonium su ...
Hydroxide
Hydroxide is a diatomic anion with chemical formula OH−. It consists of an oxygen and hydrogen atom held together by a covalent bond, and carries a negative electric charge. It is an important but usually minor constituent of water. It functions as a base, a ligand, a nucleophile and a catalyst. The hydroxide ion forms salts, some of which dissociate in aqueous solution, liberating solvated hydroxide ions. Sodium hydroxide is a multi-million-ton per annum commodity chemical. A hydroxide attached to a strongly electropositive center may itself ionize, liberating a hydrogen cation (H+), making the parent compound an acid.The corresponding electrically neutral compound •HO is the hydroxyl radical. The corresponding covalently-bound group -OH of atoms is the hydroxyl group.Hydroxide ion and hydroxyl group are nucleophiles and can act as a catalyst in organic chemistry.Many inorganic substances which bear the word ""hydroxide"" in their names are not ionic compounds of the hydroxide ion, but covalent compounds which contain hydroxyl groups.