Chemical reactions unit
... There are 6 factors that affect the rate of chemical reactions: 1. Increase in temperature: Why? The particles are moving faster and have more chances to collide into each other to make a reaction. 2. Increase in Surface area: Why? More of the substance is exposed, so the particles have more opportu ...
... There are 6 factors that affect the rate of chemical reactions: 1. Increase in temperature: Why? The particles are moving faster and have more chances to collide into each other to make a reaction. 2. Increase in Surface area: Why? More of the substance is exposed, so the particles have more opportu ...
CBSE-12th/2011/CHEMISTRY
... (ii)O=O is a much stronger bond than O-O (about 3 times). Also, O has a small size. S is larger in size. so lp repulsion is less significant. Also, S-S bond is stronger than O-O bond & S=S is less strong(less than 2 S-S bonds). This is also affected by the fact that O forms strong bonds with mostly ...
... (ii)O=O is a much stronger bond than O-O (about 3 times). Also, O has a small size. S is larger in size. so lp repulsion is less significant. Also, S-S bond is stronger than O-O bond & S=S is less strong(less than 2 S-S bonds). This is also affected by the fact that O forms strong bonds with mostly ...
File
... 55. Which pair of solutions forms a buffer when equal volumes of each are mixed? A) 0.20 M HCl and 0.20 M NaCl C) 0.20 M HCl and 0.20 M NH3 B) 0.40 M HC2H3O2 and 0.20 M NaOH D) 0.40 M HCl and 0.20 M NH3 56. A student is attempting to standardize a NaOH solution with a 0.500 molar solution of oxalic ...
... 55. Which pair of solutions forms a buffer when equal volumes of each are mixed? A) 0.20 M HCl and 0.20 M NaCl C) 0.20 M HCl and 0.20 M NH3 B) 0.40 M HC2H3O2 and 0.20 M NaOH D) 0.40 M HCl and 0.20 M NH3 56. A student is attempting to standardize a NaOH solution with a 0.500 molar solution of oxalic ...
Nitrogen and its compounds - kcpe-kcse
... The drying agent used for ammonia is quick lime. Other drying agents such as concentrated sulphuric acid or phosphorus (V) oxide or fused calcium chloride cannot dry an alkaline gas like ammonia. Sulphuric acid and phosphorus (V) oxide are both acidic. They react with ammonia, forming their respecti ...
... The drying agent used for ammonia is quick lime. Other drying agents such as concentrated sulphuric acid or phosphorus (V) oxide or fused calcium chloride cannot dry an alkaline gas like ammonia. Sulphuric acid and phosphorus (V) oxide are both acidic. They react with ammonia, forming their respecti ...
View Article - Asian Journal of Chemistry
... A series of α-bromoesters have been synthesized by applying Hell-Volhard-Zelinsky reaction catalyzed by phosphorus instead of usual phosphorus tribromide. An excellent regioselectivity to good yields are achieved at comparatively mild reaction conditions of an operational simplicity. Key Words: α-Br ...
... A series of α-bromoesters have been synthesized by applying Hell-Volhard-Zelinsky reaction catalyzed by phosphorus instead of usual phosphorus tribromide. An excellent regioselectivity to good yields are achieved at comparatively mild reaction conditions of an operational simplicity. Key Words: α-Br ...
Notes
... • Oxidation potential measures the strength of reducing agents. When the reduction half-‐reactions is read backwards, they are oxidation half reactions. In other words, oxidation potentials of reducing agents are ...
... • Oxidation potential measures the strength of reducing agents. When the reduction half-‐reactions is read backwards, they are oxidation half reactions. In other words, oxidation potentials of reducing agents are ...
Nuclear Astrophysics (1)
... a noninteracting gas can be represented by a 3D box in which it is contained (with ...
... a noninteracting gas can be represented by a 3D box in which it is contained (with ...
2. Chemistry of Living Things Outline
... catalyze. In organisms, _____________ allow the chemical reactions of ______________ to take place more efficiently than they otherwise would at body temperature. For example, amino acids are produced from protein digestion. The enzymes needed for this reaction are not changed but must be present fo ...
... catalyze. In organisms, _____________ allow the chemical reactions of ______________ to take place more efficiently than they otherwise would at body temperature. For example, amino acids are produced from protein digestion. The enzymes needed for this reaction are not changed but must be present fo ...
Summer Work
... Sixth Exercise: A mixture of 1.16 mole of A, 1.35 mole of B and 0.641 mole of C is placed in a one-liter container at a certain temperature. The reaction was allowed to reach equilibrium. At equilibrium. the number of moles of A is 1.95. Calculate the equilibrium constant, Keq, for the reaction: 2 A ...
... Sixth Exercise: A mixture of 1.16 mole of A, 1.35 mole of B and 0.641 mole of C is placed in a one-liter container at a certain temperature. The reaction was allowed to reach equilibrium. At equilibrium. the number of moles of A is 1.95. Calculate the equilibrium constant, Keq, for the reaction: 2 A ...
Packet
... 28. Hugh was born 6.391875 X 103 days ago. How old (in years, with 1yr= 365.25 days) is Hugh? ...
... 28. Hugh was born 6.391875 X 103 days ago. How old (in years, with 1yr= 365.25 days) is Hugh? ...
SAMPLE PAPER -2 Time Allowed: 3 Hrs
... (iii) The amino acids which our body system cannot produce and are necessary to be supplied through the diet are known as Essential Amino Acids. The amino acids which our body can synthesize are known as Non Essential Amino Acids. Essential Amino Acid Histidine ...
... (iii) The amino acids which our body system cannot produce and are necessary to be supplied through the diet are known as Essential Amino Acids. The amino acids which our body can synthesize are known as Non Essential Amino Acids. Essential Amino Acid Histidine ...
PP - Columbia University
... • 1) Water: 55 M (pure water) is considered the “unit” concentration instead of 1M The concentration of water rarely changes during the course of an aqueous reaction, since water is at such a high concentration. • So when calulating Go, instead of writing in “55” when water participates in a reacti ...
... • 1) Water: 55 M (pure water) is considered the “unit” concentration instead of 1M The concentration of water rarely changes during the course of an aqueous reaction, since water is at such a high concentration. • So when calulating Go, instead of writing in “55” when water participates in a reacti ...
CHEM 1211 and CHEM 1212 National ACS Exams About the Exam
... formulas and techniques. Rather, it is a coherent set of knowledge that enables comprehension of the submicroscopic (chemical) world. As such, the ACS tests seek to uncover such genuine understanding. CHEM 1211 Example Questions There is an emphasis on conceptual questions. The actual exam wi ...
... formulas and techniques. Rather, it is a coherent set of knowledge that enables comprehension of the submicroscopic (chemical) world. As such, the ACS tests seek to uncover such genuine understanding. CHEM 1211 Example Questions There is an emphasis on conceptual questions. The actual exam wi ...
2-1 Checkpoint - Jordan High School
... • Single covalent bond—share 1 pair electrons • Double covalent bond—share 2 pairs of electrons ...
... • Single covalent bond—share 1 pair electrons • Double covalent bond—share 2 pairs of electrons ...
