Chapter 4 Chemical Quantities and Aqueous Reactions
... 2 molecules of C8H18 react with 25 molecules of O2 to form 16 molecules of CO2 and 18 molecules of H2O 2 moles of C8H18 react with 25 moles of O2 to form 16 moles of CO2 and 18 moles of H2O 2 mol C8H18 : 25 mol O2 : 16 mol CO2 : 18 mol H2O ...
... 2 molecules of C8H18 react with 25 molecules of O2 to form 16 molecules of CO2 and 18 molecules of H2O 2 moles of C8H18 react with 25 moles of O2 to form 16 moles of CO2 and 18 moles of H2O 2 mol C8H18 : 25 mol O2 : 16 mol CO2 : 18 mol H2O ...
HOTS Worksheet
... Ans. The (— CO — NH —) amide bond in nylon gets hydrolysed. Q. 2. Fibres are of crystalline structure. Why ? Ans. Fibres have strong intermolecular forces of attraction which leads to close packing of their chains and impart crystalline structure. Q. 3. Which artificial polymer is present in bubble ...
... Ans. The (— CO — NH —) amide bond in nylon gets hydrolysed. Q. 2. Fibres are of crystalline structure. Why ? Ans. Fibres have strong intermolecular forces of attraction which leads to close packing of their chains and impart crystalline structure. Q. 3. Which artificial polymer is present in bubble ...
Solutions to Exercises
... 6.31 a. The heat lost by the metal is equal to the heat gained by the water. Since q = s x m x t, the heat gained by the water is directly proportional to t. Since t is larger for metal A, it lost more heat. Now, each metal has the same mass and t, so the specific heat is directly proportional t ...
... 6.31 a. The heat lost by the metal is equal to the heat gained by the water. Since q = s x m x t, the heat gained by the water is directly proportional to t. Since t is larger for metal A, it lost more heat. Now, each metal has the same mass and t, so the specific heat is directly proportional t ...
AS Chemistry Teacher Handbook
... The error in a measurement is one-half of the smallest division of the apparatus scale e.g. 0.05 cm3 on a burette or 0.005 g on a 2-decimal place digital balance. Recording a titre or measuring mass by difference requires two measurements therefore doubling the error. The error can be expressed as a ...
... The error in a measurement is one-half of the smallest division of the apparatus scale e.g. 0.05 cm3 on a burette or 0.005 g on a 2-decimal place digital balance. Recording a titre or measuring mass by difference requires two measurements therefore doubling the error. The error can be expressed as a ...
Brønsted Acidity in Metal−Organic Frameworks
... containing several different kinds of metal ions within one SBU83 is highly desirable for developing stronger Brønsted acids based on bridging hydroxyl groups. Water molecules bound to metal sites could also result in Brønsted acidity, as exemplified by MIL-100.84,85 Mediumstrength Brønsted acidic sit ...
... containing several different kinds of metal ions within one SBU83 is highly desirable for developing stronger Brønsted acids based on bridging hydroxyl groups. Water molecules bound to metal sites could also result in Brønsted acidity, as exemplified by MIL-100.84,85 Mediumstrength Brønsted acidic sit ...
study guide spring 2012
... In the chemical equation wA + xB yC + zD, if one knows the mass of A and the molar masses of A, B, C, and D, one can determine a. the mass of any of the reactants or products. b. the mass of B only. c. the total mass of C and D only. d. the total mass of A and B only. If one knows the mass and mol ...
... In the chemical equation wA + xB yC + zD, if one knows the mass of A and the molar masses of A, B, C, and D, one can determine a. the mass of any of the reactants or products. b. the mass of B only. c. the total mass of C and D only. d. the total mass of A and B only. If one knows the mass and mol ...
Entropy and Free Energy
... the values at 25°C because so many processes are carried out at room temperature—although temperature is not part of the standard state definition and therefore must be specified.) Table 14.2 lists standard entropies of a few elements and compounds. Appendix 2 provides a more extensive listing. The ...
... the values at 25°C because so many processes are carried out at room temperature—although temperature is not part of the standard state definition and therefore must be specified.) Table 14.2 lists standard entropies of a few elements and compounds. Appendix 2 provides a more extensive listing. The ...
Stoichiometric Calculations
... Slide 78 / 109 Determining the Limiting Reactant Example: When 10 grams of hydrogen react with 3.4 moles of nitrogen gas to make ammonia, which substance would be the limiting reactant? N2(g) + 3H2(g) --> 2NH3(g) Step 1: Convert all values to moles. 10 g H2 x 1 mol H2 = 5 mol H2 2 g H2 Initial Amoun ...
... Slide 78 / 109 Determining the Limiting Reactant Example: When 10 grams of hydrogen react with 3.4 moles of nitrogen gas to make ammonia, which substance would be the limiting reactant? N2(g) + 3H2(g) --> 2NH3(g) Step 1: Convert all values to moles. 10 g H2 x 1 mol H2 = 5 mol H2 2 g H2 Initial Amoun ...
Stoichiometric Calculations
... Real World Application 2C8H18(g) + 25O2(g) --> 16CO2(g) + 18H2O(g) In your car engine, octane is combusted with oxygen to produce carbon dioxide and water ...
... Real World Application 2C8H18(g) + 25O2(g) --> 16CO2(g) + 18H2O(g) In your car engine, octane is combusted with oxygen to produce carbon dioxide and water ...
Kinetic Assay of Human Pepsin with Albumin
... comparisons with results from other investigative centers. In general, research groups have tended to establish their own reference ranges for the given experiment, with the result that the reported values often do not have universal applicability. Moreover, no pure, stable human pepsin is yet avail ...
... comparisons with results from other investigative centers. In general, research groups have tended to establish their own reference ranges for the given experiment, with the result that the reported values often do not have universal applicability. Moreover, no pure, stable human pepsin is yet avail ...
Document
... [2] Rapidly solidified liquids are amorphous substances, e.g. Glass, rubber etc. [3] These solids are generally Isotropic. Note : Inotropic substances/Solids are the substances have the same values of physical properties (such as electrical conductivity, refractive index, thermal expansion etc.) in ...
... [2] Rapidly solidified liquids are amorphous substances, e.g. Glass, rubber etc. [3] These solids are generally Isotropic. Note : Inotropic substances/Solids are the substances have the same values of physical properties (such as electrical conductivity, refractive index, thermal expansion etc.) in ...
File - cpprashanths Chemistry
... 2. Question nos. 1 to 8 are very short answer questions and carry 1 mark each. 3. Question nos. 9 to 18 are short answer questions and carry 2 marks each. 4. Question nos. 19 to 27 are also short answer questions and carry 3 marks each 5. Question nos. 28 to 30 are long answer questions and carry 5 ...
... 2. Question nos. 1 to 8 are very short answer questions and carry 1 mark each. 3. Question nos. 9 to 18 are short answer questions and carry 2 marks each. 4. Question nos. 19 to 27 are also short answer questions and carry 3 marks each 5. Question nos. 28 to 30 are long answer questions and carry 5 ...
Catalysis
Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst. With a catalyst, reactions occur faster and require less activation energy. Because catalysts are not consumed in the catalyzed reaction, they can continue to catalyze the reaction of further quantities of reactant. Often only tiny amounts are required.