Homework Answers
The rate of reaction depends of the reactants. Pure oxygen contains 100% oxygen gas where as air contains only 21% of the oxygen. Therefore, the rate of the reaction with pure oxygen is greater than that of with air.
For example, combustion of carbon to carbon dioxide, sulfur to sulfur dioxide and combustion of methane to carbon dioxide and water takes place with faster rate in pure oxygen than in air.
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#3-Properties of O= Question: Many of the reactions you observed went faster or lasted longer in pure oxygen than i...
THINK ABOUT 3-1 a. Explain why sublingual administration is faster than oral administration. b. How would...
THINK ABOUT 3-1 a. Explain why sublingual administration is faster than oral administration. b. How would severe kidney or liver damage affect blood levels of a drug? c. Describe three types of adverse reactions. THINK ABOUT3-2 a. Explain why drugs are classified legally into different schedules. b. What is the effect on patients when a breakthrough in scientific research is announced in the media? THINK ABOUT 3-3 Describe three ways Asian medicine differs from Western medical practices. THINK ABOUT 4-1...
[3] (3 points) Use what you know about the life-supporting properties of water to explain why...
[3] (3 points) Use what you know about the life-supporting properties of water to explain why we are searching for water on other planets as an indicator of life. [4] (3 points) Imagine that you are asked to design a randomized clinical trial to test the eftects o caffeinated coffee on brain activity. Briefly describe the experimental and control groups including how many participants you would include in each group. Identify two standardized variables in your experiment. [5] (3 points)...
question 2 and 6 thabk you Exercises 1. (a) Calculate the volume of 6 M NaOH...
question 2 and 6 thabk you
Exercises 1. (a) Calculate the volume of 6 M NaOH required to react completely with the amount of methyl salicylate you used. How much of the 6 M NaOH that you used was in excess of the theoretical amount? (b) What volume of 3 M H SO is needed to neutralize all of the disodium salicylate and the excess NaOH present after the initial reaction? How much sulfuric acid was in excess? 2. Refer...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given below. You must: 1. Write the correct formula for each reactant and product. Balance each equation. 2. A. Combination reactions magnesium oxide 1. Magnesium + oxygen (unbalanced) Mg+ O, MgO sulfur dioxide 2. Sulfur + oxygen B. Analysis of the Copper Content of a Penny po zinc chloride + hydrogen zinc + hydrochloric acid HCI ZnCl, 1. (unbalanced) н, Zn + C. Single Replacement...
Question 3 You need to make a light, stiff and strong structural component. To achieve the...
Question 3 You need to make a light, stiff and strong structural component. To achieve the required physical properties you chose to make the component out of a fibre reinforced polymer composite material with a high fibre loading. (a) Why are long reinforcing fibres better that short fibres for this application? [6 marks] (b) Why is a thermoset resin system better than a thermoplastic for this application? [6 marks] (c) Describe the components of a thermoset resin system, and explain...
there is more than one question and more than one part, and i put pictures of the data in there too there...
there is more than one question and more than one part, and i put
pictures of the data in there too
there is more than part and more than one picture
con Experiment 5 Data and Report Name: Charene Lab Section (Day): Wednesday Partner: Troter A. Electrolytes and Nonelectrolytes 1. Classify the substances and solutions as nonelectrolytes (lowest values), weak electrolytes middle values), or strong electrolytes highest values Important: Make sure conductivity meter is set to appropriate sensitivity range. Strong...
How would you solve this question? confused about how SN1 and E1 reactions work 1) The...
How would you solve this question? confused about how SN1 and E1
reactions work
1) The following reactions have all the same electrophiles but different nucleophiles. Thus the rate of the following reactions is dependent upon the nucleophilicity of the nucleophile. In the following pairs of reactions determine which is faster x) or y) and choose the explanation and Potential Energy-Reaction Coordinate diagram given below to explain why. Use the bottom table below to answer the question. H EtOH +...
For letters h & i : For each of the following reactions, predict the major mechanistic pathway (SN1/SN2/E1/E2...
For
letters h & i :
For each of the following reactions, predict the major
mechanistic pathway (SN1/SN2/E1/E2) and the major organic
products
1. (cont.) (h) НСОН CHB -CHBr HCOH - (0) CH,CH,CH,CH,Br- NH 2. For each of the following indicate which reaction will occur faster. Explain your reasoning. (No credit will be given for guesses) (a) The reaction of (CH),CBr with 0.001M aqueous NaOH or 0.10M aqueous NaOH (b) The reaction of 2-bromobutane with NaOH in DMSO or NaSH...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
Hi please can you answer 4 questions .. thanks for help Factoes hich Infuence The Rates...
Hi
please can you answer 4 questions .. thanks for help
Factoes hich Infuence The Rates Of Resction Name Date Prelab Question Lab Instructor Lab Section a. List the potential ehemical hazards in this experiment and tell how you wi handle them in order to make this experiment safe for you and others in the laboratory b. List the potential procedural hazards in this experiment and tell how you will handle them in order to make this experiment safe for...
[3] (3 points) Use what you know about the life-supporting properties of water to explain why we are searching for water on other planets as an indicator of life. [4] (3 points) Imagine that you are asked to design a randomized clinical trial to test the eftects o caffeinated coffee on brain activity. Briefly describe the experimental and control groups including how many participants you would include in each group. Identify two standardized variables in your experiment. [5] (3 points)...
question 2 and 6 thabk you
Exercises 1. (a) Calculate the volume of 6 M NaOH required to react completely with the amount of methyl salicylate you used. How much of the 6 M NaOH that you used was in excess of the theoretical amount? (b) What volume of 3 M H SO is needed to neutralize all of the disodium salicylate and the excess NaOH present after the initial reaction? How much sulfuric acid was in excess? 2. Refer...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given below. You must: 1. Write the correct formula for each reactant and product. Balance each equation. 2. A. Combination reactions magnesium oxide 1. Magnesium + oxygen (unbalanced) Mg+ O, MgO sulfur dioxide 2. Sulfur + oxygen B. Analysis of the Copper Content of a Penny po zinc chloride + hydrogen zinc + hydrochloric acid HCI ZnCl, 1. (unbalanced) н, Zn + C. Single Replacement...
Question 3 You need to make a light, stiff and strong structural component. To achieve the required physical properties you chose to make the component out of a fibre reinforced polymer composite material with a high fibre loading. (a) Why are long reinforcing fibres better that short fibres for this application? [6 marks] (b) Why is a thermoset resin system better than a thermoplastic for this application? [6 marks] (c) Describe the components of a thermoset resin system, and explain...
there is more than one question and more than one part, and i put
pictures of the data in there too
there is more than part and more than one picture
con Experiment 5 Data and Report Name: Charene Lab Section (Day): Wednesday Partner: Troter A. Electrolytes and Nonelectrolytes 1. Classify the substances and solutions as nonelectrolytes (lowest values), weak electrolytes middle values), or strong electrolytes highest values Important: Make sure conductivity meter is set to appropriate sensitivity range. Strong...
How would you solve this question? confused about how SN1 and E1
reactions work
1) The following reactions have all the same electrophiles but different nucleophiles. Thus the rate of the following reactions is dependent upon the nucleophilicity of the nucleophile. In the following pairs of reactions determine which is faster x) or y) and choose the explanation and Potential Energy-Reaction Coordinate diagram given below to explain why. Use the bottom table below to answer the question. H EtOH +...
For
letters h & i :
For each of the following reactions, predict the major
mechanistic pathway (SN1/SN2/E1/E2) and the major organic
products
1. (cont.) (h) НСОН CHB -CHBr HCOH - (0) CH,CH,CH,CH,Br- NH 2. For each of the following indicate which reaction will occur faster. Explain your reasoning. (No credit will be given for guesses) (a) The reaction of (CH),CBr with 0.001M aqueous NaOH or 0.10M aqueous NaOH (b) The reaction of 2-bromobutane with NaOH in DMSO or NaSH...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
Hi
please can you answer 4 questions .. thanks for help
Factoes hich Infuence The Rates Of Resction Name Date Prelab Question Lab Instructor Lab Section a. List the potential ehemical hazards in this experiment and tell how you wi handle them in order to make this experiment safe for you and others in the laboratory b. List the potential procedural hazards in this experiment and tell how you will handle them in order to make this experiment safe for...
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