Unit 2: Matter as Solutions and Gases
... 2. Polar Molecule: - unequal charged distribution due to the electron pairs around the oxygen atom. 3. Strong O−H Hydrogen Bond: - a type of hydrogen bond that is fairly strong compared to other types of intermolecular bonds (bonds between molecules). ...
... 2. Polar Molecule: - unequal charged distribution due to the electron pairs around the oxygen atom. 3. Strong O−H Hydrogen Bond: - a type of hydrogen bond that is fairly strong compared to other types of intermolecular bonds (bonds between molecules). ...
50 chemistry questions for class xii
... Q45 Give one point of difference between thermosets &thermoplasts. Ans→BooK Q46 --- (--CH2-CH---) n--│ C6H5 Is the above polymer homopolymer or copolymer? Is it an addition or condensation? Ans→ Homo & addition. Q47 What is the difference between polyacrylate& polyester? Ans→ polyacrylate—homo,addit ...
... Q45 Give one point of difference between thermosets &thermoplasts. Ans→BooK Q46 --- (--CH2-CH---) n--│ C6H5 Is the above polymer homopolymer or copolymer? Is it an addition or condensation? Ans→ Homo & addition. Q47 What is the difference between polyacrylate& polyester? Ans→ polyacrylate—homo,addit ...
Chapter 16 Controlling the yield of reactions
... The equilibrium constant for the reaction given by the equation: 2HI(g) H2(g) + I2(g) is 48.8 at 455°C. An equilibrium mixture in a 2.0 L vessel at this temperature contains 0.220 mol of H2 and 0.110 mol of I2. a Calculate the concentration of HI in this mixture. b Another mixture was prepared by pl ...
... The equilibrium constant for the reaction given by the equation: 2HI(g) H2(g) + I2(g) is 48.8 at 455°C. An equilibrium mixture in a 2.0 L vessel at this temperature contains 0.220 mol of H2 and 0.110 mol of I2. a Calculate the concentration of HI in this mixture. b Another mixture was prepared by pl ...
Section 1.6
... (b) methanal (c) ethanal 5. In order of increasing boiling points: propane (b); 1-propanone (a); 1-propanol (c). This order is predicted because (a) contains a carbonyl group (with a polar double bond), making it more polar than (b), which gives 1-propanone a higher boiling point than propane. 1-pro ...
... (b) methanal (c) ethanal 5. In order of increasing boiling points: propane (b); 1-propanone (a); 1-propanol (c). This order is predicted because (a) contains a carbonyl group (with a polar double bond), making it more polar than (b), which gives 1-propanone a higher boiling point than propane. 1-pro ...
Ketones and Aldehydes Reading: Wade chapter 18, sections 18
... E. Alternative Syntheses of Ketones and Aldehydes Dithiane alkylation: S N2 Alkylation of dithiane anions with alkyl halides leads to aldehydes and ketones. Hydrolysis of the intermediate substituted dithianes to the corresponding carbonyl compounds occurs with acidic mercury (II) solutions. ...
... E. Alternative Syntheses of Ketones and Aldehydes Dithiane alkylation: S N2 Alkylation of dithiane anions with alkyl halides leads to aldehydes and ketones. Hydrolysis of the intermediate substituted dithianes to the corresponding carbonyl compounds occurs with acidic mercury (II) solutions. ...
Chapter 8: Balances on Nonreactive Processes
... Example 8.3-2 Heating and Cooling of an Ideal Gas a) A large-scale coal gasification plant is producing synthesis gas at a temperature of 650 K kg H 2 and a pressure of 6.3 MPa. The rate of production from this process is 1.2 × 106 . The day hydrogen is produced for use in a Phosphoric-Acid Fuel cel ...
... Example 8.3-2 Heating and Cooling of an Ideal Gas a) A large-scale coal gasification plant is producing synthesis gas at a temperature of 650 K kg H 2 and a pressure of 6.3 MPa. The rate of production from this process is 1.2 × 106 . The day hydrogen is produced for use in a Phosphoric-Acid Fuel cel ...
chemical and isotopic evidence for the in situ origin of marine humic
... is lower than that reported by Swanson (Lmpublishcd) for three samples from the basins off southern California. This is particularly true of the Santa Barbara sampIcs : theirs had 6.43% sulfur and ours 2.12%. The reason for this is not clear, but may bc related to differences in sample preparation. ...
... is lower than that reported by Swanson (Lmpublishcd) for three samples from the basins off southern California. This is particularly true of the Santa Barbara sampIcs : theirs had 6.43% sulfur and ours 2.12%. The reason for this is not clear, but may bc related to differences in sample preparation. ...
Organic Chemistry
... • Cis‐alkenes have similar higher priority elements or group in the chain on the same side of the molecule (or Z‐isomer i.e. have higher priority elements but not necessarily the same on the same side of the molecule) • Trans‐alkenes have similar higher priority elements or group in the chain on opp ...
... • Cis‐alkenes have similar higher priority elements or group in the chain on the same side of the molecule (or Z‐isomer i.e. have higher priority elements but not necessarily the same on the same side of the molecule) • Trans‐alkenes have similar higher priority elements or group in the chain on opp ...
Stoichiometry: Calculations with Chemical Formulas and Equations
... stoichiometric factors (or molar ratios) than needed to solve any particular stoichiometric problem. Often only one or two of them are relevant in a given problem. 2. The number of grams of reactant cannot be directly related to the number of grams of product. 3. To get grams of product from grams o ...
... stoichiometric factors (or molar ratios) than needed to solve any particular stoichiometric problem. Often only one or two of them are relevant in a given problem. 2. The number of grams of reactant cannot be directly related to the number of grams of product. 3. To get grams of product from grams o ...
Ch16 - WordPress.com
... The equilibrium constant for the reaction given by the equation: 2HI(g) H2(g) + I2(g) is 48.8 at 455°C. An equilibrium mixture in a 2.0 L vessel at this temperature contains 0.220 mol of H2 and 0.110 mol of I2. a Calculate the concentration of HI in this mixture. b Another mixture was prepared by ...
... The equilibrium constant for the reaction given by the equation: 2HI(g) H2(g) + I2(g) is 48.8 at 455°C. An equilibrium mixture in a 2.0 L vessel at this temperature contains 0.220 mol of H2 and 0.110 mol of I2. a Calculate the concentration of HI in this mixture. b Another mixture was prepared by ...
AMIDES AND RELATED FUNCTIONAL GROUPS
... Principles of Drug Action 1, Spring 2005, Amides hydrocarbons as illustrated below: While hydrogen bonding may enhance the water solubility of amides relative to hydrocarbons (alkanes, alkenes, alkynes and aromatic compounds), amides typically are regarded as compounds with low water solubility. Th ...
... Principles of Drug Action 1, Spring 2005, Amides hydrocarbons as illustrated below: While hydrogen bonding may enhance the water solubility of amides relative to hydrocarbons (alkanes, alkenes, alkynes and aromatic compounds), amides typically are regarded as compounds with low water solubility. Th ...
Ch16
... The equilibrium constant for the reaction given by the equation: 2HI(g) H2(g) + I2(g) is 48.8 at 455°C. An equilibrium mixture in a 2.0 L vessel at this temperature contains 0.220 mol of H2 and 0.110 mol of I2. a Calculate the concentration of HI in this mixture. b Another mixture was prepared by ...
... The equilibrium constant for the reaction given by the equation: 2HI(g) H2(g) + I2(g) is 48.8 at 455°C. An equilibrium mixture in a 2.0 L vessel at this temperature contains 0.220 mol of H2 and 0.110 mol of I2. a Calculate the concentration of HI in this mixture. b Another mixture was prepared by ...
alcohols03
... t-butyl alcohol is less acidic because its alkoxide anion is bulky and not easily solvated by water 2,2,2-trifluoroethanol is more acidic than ethanol because the highly electronegative F-atoms inductively withdraw electron density from the alkoxide anion thus stabilizing the anion nonafluoro-tert ...
... t-butyl alcohol is less acidic because its alkoxide anion is bulky and not easily solvated by water 2,2,2-trifluoroethanol is more acidic than ethanol because the highly electronegative F-atoms inductively withdraw electron density from the alkoxide anion thus stabilizing the anion nonafluoro-tert ...
SYNTHESIS OF NEW DICLOFENAC DERIVATIVES BY COUPLING WITH CHALCONE
... both benzene rings in such a way that this system has relatively low redox potentials and has a greater probability of undergoing electron transfer reactions[11]. In addition the colors of these compounds is attributed to the presence of such chromophore (-COCH=CH-) and other auxochromes (Scheme 1). ...
... both benzene rings in such a way that this system has relatively low redox potentials and has a greater probability of undergoing electron transfer reactions[11]. In addition the colors of these compounds is attributed to the presence of such chromophore (-COCH=CH-) and other auxochromes (Scheme 1). ...
Mole Concept
... The empirical formula of a compound gives the simplest whole number ratio of different types of atoms in the compound. All salt formulas are empirical formulas. On the other hand, the molecular formula of a compound may or may not be the same as its empirical formula. For example, the molecular form ...
... The empirical formula of a compound gives the simplest whole number ratio of different types of atoms in the compound. All salt formulas are empirical formulas. On the other hand, the molecular formula of a compound may or may not be the same as its empirical formula. For example, the molecular form ...
Final Exam
... ____ 28. What mass of He contains the same number of atoms as 5.0 g Kr? a. 0.24 g b. 0.80 g c. 1.2 g d. 5.0 g e. 1.0 102 g ____ 29. All of the following are named correctly EXCEPT a. LiClO4; lithium perchlorate. b. CaHPO4; calcium hydrogen phosphide. c. NaCN; sodium cyanide. d. Mg(OH)2; magnesium ...
... ____ 28. What mass of He contains the same number of atoms as 5.0 g Kr? a. 0.24 g b. 0.80 g c. 1.2 g d. 5.0 g e. 1.0 102 g ____ 29. All of the following are named correctly EXCEPT a. LiClO4; lithium perchlorate. b. CaHPO4; calcium hydrogen phosphide. c. NaCN; sodium cyanide. d. Mg(OH)2; magnesium ...
Tro Ch 3 Lecture PP - Highline Community College
... The empirical formula for the molecular compound oxalic acid is CHO2. This means that there is 1 C atom and 1 H atom for every 2 O atoms in the molecule. The actual molecular formula is C2H2O4. Tro: Chemistry: A Molecular Approach, 2/e ...
... The empirical formula for the molecular compound oxalic acid is CHO2. This means that there is 1 C atom and 1 H atom for every 2 O atoms in the molecule. The actual molecular formula is C2H2O4. Tro: Chemistry: A Molecular Approach, 2/e ...
Chapter 3 Sem 2 2013-14
... 2 atoms of Al and 3 molecules of (SO4)2- = 1 formula unit Al2(SO4)3 2 moles of Al and 3 moles of (SO4)2- = 1 formula unit Al2(SO4)3 1 formula unit Al2(SO4)3 = 342.17 amu Al2(SO4)3 1 mole Al2(SO4)3 = 342.17 g Al2(SO4)3 1 mole Al2(SO4)3 = 6.022 x 1023 formula units Al2(SO4)3 1 mole Al2(SO4)3 = 2 mol A ...
... 2 atoms of Al and 3 molecules of (SO4)2- = 1 formula unit Al2(SO4)3 2 moles of Al and 3 moles of (SO4)2- = 1 formula unit Al2(SO4)3 1 formula unit Al2(SO4)3 = 342.17 amu Al2(SO4)3 1 mole Al2(SO4)3 = 342.17 g Al2(SO4)3 1 mole Al2(SO4)3 = 6.022 x 1023 formula units Al2(SO4)3 1 mole Al2(SO4)3 = 2 mol A ...
When Are Nitrogen Units - Perfect Blend Biotic Fertilizers
... were found in water sources in pristine areas. This new research suggests that plants have to efficiently use organic nitrogen — otherwise those pristine forests would not exist. Those of us who were taught the “Nitrogen Cycle” are now faced with learning new principles and revisiting our concepts ...
... were found in water sources in pristine areas. This new research suggests that plants have to efficiently use organic nitrogen — otherwise those pristine forests would not exist. Those of us who were taught the “Nitrogen Cycle” are now faced with learning new principles and revisiting our concepts ...
Module 1 Predictor Questions
... moles of a species. Thus, if asked how many atoms, ions, or molecules there are in one mole of each of these species, simply multiply the answers given above by Avogadro’s number, 6.022 x 1023. Remember that 1 mole = 6.022 x 1023, just like 1 dozen = 12. 7. How many atoms of each element are present ...
... moles of a species. Thus, if asked how many atoms, ions, or molecules there are in one mole of each of these species, simply multiply the answers given above by Avogadro’s number, 6.022 x 1023. Remember that 1 mole = 6.022 x 1023, just like 1 dozen = 12. 7. How many atoms of each element are present ...
PREPARATION OF ALDEHYDES
... 2. Reduction of acyl chlorides: RCOCl → RCHO Lithium tri-t-butoxyaluminum hydride is often used for this reduction. CH3 H3C C O ...
... 2. Reduction of acyl chlorides: RCOCl → RCHO Lithium tri-t-butoxyaluminum hydride is often used for this reduction. CH3 H3C C O ...
containing complexes of aromatic amino acids
... the 65Cu-containing complexes were used for verification). The CID of [CuII(Trp)2] 2+ (Fig. 1a) reveals only products of dissociative electron transfer, giving Trp + at m/z 204 and [CuI(Trp)]+ at m/z 267. The product ion at m/z 130 is probably the protonated 3-methyleneindolenine cation formed via ...
... the 65Cu-containing complexes were used for verification). The CID of [CuII(Trp)2] 2+ (Fig. 1a) reveals only products of dissociative electron transfer, giving Trp + at m/z 204 and [CuI(Trp)]+ at m/z 267. The product ion at m/z 130 is probably the protonated 3-methyleneindolenine cation formed via ...
عرض تقديمي من PowerPoint
... Heterocyclic analogues of Cyclopropane All three membered rings have one major property in common- a strained ring which confers great reactivity on the compounds in comparison with their openchain analogues. ...
... Heterocyclic analogues of Cyclopropane All three membered rings have one major property in common- a strained ring which confers great reactivity on the compounds in comparison with their openchain analogues. ...
10 Haloalkanes and Haloarenes
... the addition of HX in unsymmetrical alkene takes place according to Markownikoff’s rule. According to Markownikoff’s rule, “during addition of an unsymmetrical reagent across the double bond of an unsymmetrical alkene, the negative part of reagent attacks on the carbon atom with less number of hydro ...
... the addition of HX in unsymmetrical alkene takes place according to Markownikoff’s rule. According to Markownikoff’s rule, “during addition of an unsymmetrical reagent across the double bond of an unsymmetrical alkene, the negative part of reagent attacks on the carbon atom with less number of hydro ...
C1 polymerization and related C-C bond forming - UvA-DARE
... will be possible at all using C2 polymerization techniques. As such we are facing important challenges in future polymer synthesis, which require us to develop new polymerization methods, that will allow us to prepare functional stereoregular (co)polymers containing a wide variety of functional grou ...
... will be possible at all using C2 polymerization techniques. As such we are facing important challenges in future polymer synthesis, which require us to develop new polymerization methods, that will allow us to prepare functional stereoregular (co)polymers containing a wide variety of functional grou ...
Organosulfur compounds
Organosulfur compounds are organic compounds that contain sulfur. They are often associated with foul odors, but many of the sweetest compounds known are organosulfur derivatives, e.g., saccharin. Nature abounds with organosulfur compounds—sulfur is essential for life. Of the 20 common amino acids, two (cysteine and methionine) are organosulfur compounds, and the antibiotics penicillin (pictured below) and sulfa drugs both contain sulfur. While sulfur-containing antibiotics save many lives, sulfur mustard is a deadly chemical warfare agent. Fossil fuels, coal, petroleum, and natural gas, which are derived from ancient organisms, necessarily contain organosulfur compounds, the removal of which is a major focus of oil refineries.Sulfur shares the chalcogen group with oxygen, selenium and tellurium, and it is expected that organosulfur compounds have similarities with carbon–oxygen, carbon–selenium and carbon–tellurium compounds, which is true to some extent.A classical chemical test for the detection of sulfur compounds is the Carius halogen method.