Chem 107 - Hughbanks Exam 1
... Compared to the quantity of Al2O3, there is an excess of NaOH and there is too little HF. Therefore, HF is the limiting reagent ⇒ only (2/12) × (29985 mol) Na3AlF6 can be formed. max. # moles of Na3AlF6 is 4997.5 ⇒ (4997.5 mol) × (0.20995 kg/mol) = 1049 kg ...
... Compared to the quantity of Al2O3, there is an excess of NaOH and there is too little HF. Therefore, HF is the limiting reagent ⇒ only (2/12) × (29985 mol) Na3AlF6 can be formed. max. # moles of Na3AlF6 is 4997.5 ⇒ (4997.5 mol) × (0.20995 kg/mol) = 1049 kg ...
Ch 4 Student.pptx
... • Limiting Reactant – reactant that is completely consumed and limits amount of product • Reactant in excess – reactant present in greater quantity than limiting reactant • Theoretical Yield – amount of product made based on consumption of all the limiting reactant • Actual Yield – amount of pro ...
... • Limiting Reactant – reactant that is completely consumed and limits amount of product • Reactant in excess – reactant present in greater quantity than limiting reactant • Theoretical Yield – amount of product made based on consumption of all the limiting reactant • Actual Yield – amount of pro ...
Chemistry Standardized Test Practice: Student Edition
... Rutherford’s experiment in which he used a radioactive source to “shoot” alpha particles at a thin sheet of gold foil. Based on these results, what were Rutherford’s conclusions? ...
... Rutherford’s experiment in which he used a radioactive source to “shoot” alpha particles at a thin sheet of gold foil. Based on these results, what were Rutherford’s conclusions? ...
East Meck Chemistry
... any chemical change involves only a rearrangement of the atoms. Atoms do not just appear. Atoms do not just disappear. This is an example of the law of conservation of mass (or matter), which says that in a chemical change, matter is neither ________________ nor destroyed. All chemical changes also ...
... any chemical change involves only a rearrangement of the atoms. Atoms do not just appear. Atoms do not just disappear. This is an example of the law of conservation of mass (or matter), which says that in a chemical change, matter is neither ________________ nor destroyed. All chemical changes also ...
Chemical Equations and Stoichiometry
... When it comes to chemistry it is also not practical (or reliable) to count grains. It would be even less practical to count molecules. So we use the idea of a bag or a mole which is about 6.02 X 1023 particles (atoms or molecules) of the substance were talking about. Right now that number is not too ...
... When it comes to chemistry it is also not practical (or reliable) to count grains. It would be even less practical to count molecules. So we use the idea of a bag or a mole which is about 6.02 X 1023 particles (atoms or molecules) of the substance were talking about. Right now that number is not too ...
BalanceEquationsetc
... • A mole is defined as the number of atoms in exactly 12 grams of carbon- 12 • The number is called Avogadro’s Number • One mole of carbon atoms has a mass of 12 grams ...
... • A mole is defined as the number of atoms in exactly 12 grams of carbon- 12 • The number is called Avogadro’s Number • One mole of carbon atoms has a mass of 12 grams ...
chemistry-c7-what-you-should
... I understand the terms exothermic and endothermic I can use and interpret energy level diagrams for exothermic and endothermic reactions I understand that energy is needed to break chemical bonds and that energy is given out when chemical bonds form I can use data on the energy needed to break coval ...
... I understand the terms exothermic and endothermic I can use and interpret energy level diagrams for exothermic and endothermic reactions I understand that energy is needed to break chemical bonds and that energy is given out when chemical bonds form I can use data on the energy needed to break coval ...
PRACTICE EXAM 1-C
... sulfuric acid with potassium hydroxide. (You do not need to include state symbols such as (s), (aq), etc.) (You may wish to write the complete reaction and do some work on scrap paper, but we will only grade the net-ionic reaction written in the box below.) (2 pts) ...
... sulfuric acid with potassium hydroxide. (You do not need to include state symbols such as (s), (aq), etc.) (You may wish to write the complete reaction and do some work on scrap paper, but we will only grade the net-ionic reaction written in the box below.) (2 pts) ...
幻灯片 1
... Nuclei contain positive protons and uncharged neutrons. The number of protons is the atomic number (Z) of an element. Electrostatic attractive force: Electrons are attracted to Nucleus The attractive strong interaction between protons and neutrons is opposed by electrostatic repulsion between proton ...
... Nuclei contain positive protons and uncharged neutrons. The number of protons is the atomic number (Z) of an element. Electrostatic attractive force: Electrons are attracted to Nucleus The attractive strong interaction between protons and neutrons is opposed by electrostatic repulsion between proton ...
vce chemistry trial exam 1
... 2-Chloropropane and propan-2-ol have different numbers of different hydrogen atom environments and so have different numbers of peaks on the 1H NMR spectrum. They are not identical. B is incorrect because the number of peaks on the 1H NMR spectrum represents the number of different hydrogen environm ...
... 2-Chloropropane and propan-2-ol have different numbers of different hydrogen atom environments and so have different numbers of peaks on the 1H NMR spectrum. They are not identical. B is incorrect because the number of peaks on the 1H NMR spectrum represents the number of different hydrogen environm ...
A1.1 Check and Reflect A1.2 Check and Reflect
... electron suggested the existence of subatomic particles. 10. Dalton imagined that atoms of different elements would have different sizes, masses, and would also differ in their ability to combine with other atoms. 11. Bohr’s model of the atom placed the electrons in energy levels. Although electrons ...
... electron suggested the existence of subatomic particles. 10. Dalton imagined that atoms of different elements would have different sizes, masses, and would also differ in their ability to combine with other atoms. 11. Bohr’s model of the atom placed the electrons in energy levels. Although electrons ...
A1.1 Check and Reflect A1.2 Check and Reflect
... electron suggested the existence of subatomic particles. 10. Dalton imagined that atoms of different elements would have different sizes, masses, and would also differ in their ability to combine with other atoms. 11. Bohr’s model of the atom placed the electrons in energy levels. Although electrons ...
... electron suggested the existence of subatomic particles. 10. Dalton imagined that atoms of different elements would have different sizes, masses, and would also differ in their ability to combine with other atoms. 11. Bohr’s model of the atom placed the electrons in energy levels. Although electrons ...
Chemistry in Society - Cathkin High School
... economic efficiency. We have considered these in other topics but examples are: ...
... economic efficiency. We have considered these in other topics but examples are: ...
chapter 3
... CHAPTER 3. STOICHIOMETRY Chemical equations describe chemical reactions. Common symbols: (g) or ↑ gas; ...
... CHAPTER 3. STOICHIOMETRY Chemical equations describe chemical reactions. Common symbols: (g) or ↑ gas; ...
chemistry
... (1) They have identical molecular and identical properties. (2) They have identical molecular and different properties. (3) They have different molecular and identical properties. (4) They have different molecular and different properties. ...
... (1) They have identical molecular and identical properties. (2) They have identical molecular and different properties. (3) They have different molecular and identical properties. (4) They have different molecular and different properties. ...
advanced chemistry may 2011 marking scheme
... If carbonic acid is shown as ionizing in a SINGLE step to produce carbonate (and two protons), award only 0.5 mark. ...
... If carbonic acid is shown as ionizing in a SINGLE step to produce carbonate (and two protons), award only 0.5 mark. ...
Ligand Conformation Enforces Trigonal
... is EPR silent at room temperature and 77 K, thus suggesting a strongly antiferromagnetically coupled dinuclear compound. Description of the Crystal Structure. Table 1 lists the crystallographic data for complex 1, which crystallizes as green single crystals that belong to the triclinic system, space ...
... is EPR silent at room temperature and 77 K, thus suggesting a strongly antiferromagnetically coupled dinuclear compound. Description of the Crystal Structure. Table 1 lists the crystallographic data for complex 1, which crystallizes as green single crystals that belong to the triclinic system, space ...
College Chemistry I PHS 1025 Fall 2012 Practice Exam 3A
... 47) Which one of the following compounds is insoluble in water? A) Rb2CO3 B) PbSO4 C) K2SO4 48) In which compound is the oxidation state of hydrogen not +1? A) Na2HSO4 B) NaH C) H2O ...
... 47) Which one of the following compounds is insoluble in water? A) Rb2CO3 B) PbSO4 C) K2SO4 48) In which compound is the oxidation state of hydrogen not +1? A) Na2HSO4 B) NaH C) H2O ...
Year Review Booklet (optional)
... Introduction to Chemistry 1. 0.6µm 2. 5.4 x 104nL 10 3. 3.5 x 10-6 mg/mL 4. 25.2 g 5. 556 mL 6. 8.92 g/mL 7. a. 2 b. 4 c.5 d. 2 e. 8 f. 3 8. a. 0.647 b. 394.78 c. 1 x 108 d. 45.7 e. 105.46 f. 2.02 x 109 g. 0.6748 h. 95.813 i. 4.92 x 10-4 j. 1.195 9. a. 2.0 x 109 b. 1.1 x 105 c. 3.9 x 1028 d. 7.9 x 1 ...
... Introduction to Chemistry 1. 0.6µm 2. 5.4 x 104nL 10 3. 3.5 x 10-6 mg/mL 4. 25.2 g 5. 556 mL 6. 8.92 g/mL 7. a. 2 b. 4 c.5 d. 2 e. 8 f. 3 8. a. 0.647 b. 394.78 c. 1 x 108 d. 45.7 e. 105.46 f. 2.02 x 109 g. 0.6748 h. 95.813 i. 4.92 x 10-4 j. 1.195 9. a. 2.0 x 109 b. 1.1 x 105 c. 3.9 x 1028 d. 7.9 x 1 ...
Atoms, Ions and Molecules
... 2.2 - 2.3 Fundamental Chemical Laws/ Dalton’s Atomic Theory John Dalton (1808) “Father of Atomic Theory” Essentials of his theory. . . 1. An element is composed of tiny particles called atoms. All atoms of a given element show the same chemical properties. 2. Atoms of different elements have differ ...
... 2.2 - 2.3 Fundamental Chemical Laws/ Dalton’s Atomic Theory John Dalton (1808) “Father of Atomic Theory” Essentials of his theory. . . 1. An element is composed of tiny particles called atoms. All atoms of a given element show the same chemical properties. 2. Atoms of different elements have differ ...