X012/13/02
... 20. Substance X is distributed between equal volumes of two immiscible liquids as shown in the diagram. The number of dots represents the relative distribution of X in the two liquids at equilibrium. ...
... 20. Substance X is distributed between equal volumes of two immiscible liquids as shown in the diagram. The number of dots represents the relative distribution of X in the two liquids at equilibrium. ...
Chemistry 12 - hrsbstaff.ednet.ns.ca
... is established in a one litre container. If 2.0 mol of CO and 3.0 mol of H2O are in equilibrium with 4.0 mol of H2, how much CO2 is present? A. 0.33 mol B. 0.75 mol C. 2.0 mol D. 3.0 mol 51. A 0.025 mol/L aqueous solution of a pure substance has a pH = 12 .4. How would this substance be classified? ...
... is established in a one litre container. If 2.0 mol of CO and 3.0 mol of H2O are in equilibrium with 4.0 mol of H2, how much CO2 is present? A. 0.33 mol B. 0.75 mol C. 2.0 mol D. 3.0 mol 51. A 0.025 mol/L aqueous solution of a pure substance has a pH = 12 .4. How would this substance be classified? ...
A Classification of AP Chemistry Reactions
... numbers can be helpful. Second, almost all of these reactions take place in acid solution. This means that H+ is almost sure to be a reactant and H2O is almost sure to be a product. These types of reactions should be visually inspected to make sure all the atoms (especially oxygens) are accounted fo ...
... numbers can be helpful. Second, almost all of these reactions take place in acid solution. This means that H+ is almost sure to be a reactant and H2O is almost sure to be a product. These types of reactions should be visually inspected to make sure all the atoms (especially oxygens) are accounted fo ...
Chemistry1100 Practice Exam 4 Choose the best answer for
... 11. A compound has an empirical formula CH2- An independent analysis gave a value of 70 for its molar mass. What is the correct molecular formula? a. C2H4 b. C3H6 c. C4O8 d. C5H10 e. C5H11 12. Given the balanced chemical equation, C4H4 + 5 O2 → 4 CO2 + 2 H2O. If 0.3618 moles of C4H4 are allowed to ...
... 11. A compound has an empirical formula CH2- An independent analysis gave a value of 70 for its molar mass. What is the correct molecular formula? a. C2H4 b. C3H6 c. C4O8 d. C5H10 e. C5H11 12. Given the balanced chemical equation, C4H4 + 5 O2 → 4 CO2 + 2 H2O. If 0.3618 moles of C4H4 are allowed to ...
king fahd university of petroleum and minerals chemistry
... Write your student number, name, and section number on the EXAM COVER page. Write your student number, section number, and your name on your EXAM ANSWER FORM. Bubble in pencil your student number and your section number on the EXAM ANSWER FORM. Bubble in pencil on your EXAM ANSWER FORM the correct a ...
... Write your student number, name, and section number on the EXAM COVER page. Write your student number, section number, and your name on your EXAM ANSWER FORM. Bubble in pencil your student number and your section number on the EXAM ANSWER FORM. Bubble in pencil on your EXAM ANSWER FORM the correct a ...
Solutions Foldable
... o CO2, CH4, SO3, C2H6, F2 Ionic compounds = positive and negative ions bonded (usually contains a metal and a nonmetal or a metal and a polyatomic ion) o Li2SO4, MgO, Na2O, Ca(OH)2 Now that we know what will mix to make a solution how do we know how MUCH solute can be used? Solubility Charts/Graph ...
... o CO2, CH4, SO3, C2H6, F2 Ionic compounds = positive and negative ions bonded (usually contains a metal and a nonmetal or a metal and a polyatomic ion) o Li2SO4, MgO, Na2O, Ca(OH)2 Now that we know what will mix to make a solution how do we know how MUCH solute can be used? Solubility Charts/Graph ...
2011-2012 Paper 1
... 1. (a) A sodium hydroxide solution has been exposed to air for a long time. When dilute hydrochloric acid is added to it, colourless gas bubbles are given out. Explain the observation with the help of equations. ...
... 1. (a) A sodium hydroxide solution has been exposed to air for a long time. When dilute hydrochloric acid is added to it, colourless gas bubbles are given out. Explain the observation with the help of equations. ...
Experiment 7
... 5. Pipette 10 ml aliquots of the solutions in the water bath (from Part 1) using the cotton filter attached to the base of the pipette and titrate with the standardized NaOH solution using phenolphthalein as the indicator. 6. For each of the five solutions prepared, a minimum of three titrations sho ...
... 5. Pipette 10 ml aliquots of the solutions in the water bath (from Part 1) using the cotton filter attached to the base of the pipette and titrate with the standardized NaOH solution using phenolphthalein as the indicator. 6. For each of the five solutions prepared, a minimum of three titrations sho ...
CHEMISTRY
... charge. There are millions of different chemical reactions that occur in the Universe. It would be quite a task to memorize the details of all of them separately. To reduce the amount that we have to know, scientists classify reactions into types. Every reaction within a type follows a particular pa ...
... charge. There are millions of different chemical reactions that occur in the Universe. It would be quite a task to memorize the details of all of them separately. To reduce the amount that we have to know, scientists classify reactions into types. Every reaction within a type follows a particular pa ...
Exam Review
... In the free, or uncombined, state the number of protons in the nucleus of an element must equal the __. a) mass number c) mass number - atomic number b) number of neutrons in the nucleus d) number of electrons present Which of the following ideas of the Bohr model is not retained in the modern theor ...
... In the free, or uncombined, state the number of protons in the nucleus of an element must equal the __. a) mass number c) mass number - atomic number b) number of neutrons in the nucleus d) number of electrons present Which of the following ideas of the Bohr model is not retained in the modern theor ...
35. Number of reactions - Royal Society of Chemistry
... (Cu(OH)2.CuCO3) is formed initially. On adding excess A this dissolves to form a deep blue solution of Cu(NH3)42+(aq). ...
... (Cu(OH)2.CuCO3) is formed initially. On adding excess A this dissolves to form a deep blue solution of Cu(NH3)42+(aq). ...
Writing Chemical Formulas and Chemical Reactions
... 1. Find the latin name of the cation in the chemical formula. Usually, the latin name for Hg and Sb are not used. If the cation does not have a latin name, ignore this step. 2. Remove the last syllable (usually "um" for the latin name) and add the suffix ("ous" or "ic") in its place. Arsenic’s name ...
... 1. Find the latin name of the cation in the chemical formula. Usually, the latin name for Hg and Sb are not used. If the cation does not have a latin name, ignore this step. 2. Remove the last syllable (usually "um" for the latin name) and add the suffix ("ous" or "ic") in its place. Arsenic’s name ...
Saturday Study Session 1 1st Class Reactions
... • Solids, liquids, and gases can NOT be broken into ions • SOLUTION – if it says a solution, then it CAN be broken into ions if it is soluble in water. • Only ionic compounds can become separate ions in a solution. • The 6 strong acids (HCl, HBr, HI, HNO3, HClO4, H2SO4) and the strong bases (group 1 ...
... • Solids, liquids, and gases can NOT be broken into ions • SOLUTION – if it says a solution, then it CAN be broken into ions if it is soluble in water. • Only ionic compounds can become separate ions in a solution. • The 6 strong acids (HCl, HBr, HI, HNO3, HClO4, H2SO4) and the strong bases (group 1 ...
Types of Reactions notes 02 Types of chemical reactions
... NaCl(aq) – means that the chemical is disolved in water. In this case it would be salt dissolved in water. ...
... NaCl(aq) – means that the chemical is disolved in water. In this case it would be salt dissolved in water. ...