Rate of Reaction :: GCSE Chemistry Coursework Investigation

Rate of Reaction Coursework Aim: To investigate how temperature affects rate of reaction. Introduction: I am going to investigate how temperature affects the rate of reaction of hydrochloric acid with calcium carbonate. This is the reaction that will take place: Hydrochloric acid + Calcium Carbonate à ¨ Calcium Carbonate + Water + Carbon Dioxide The rate of reaction can be measured in various different ways: * Using a balance you can check the mass before the reaction and then after the reaction has taken place. Then check the change in mass. * You can also use the method of obscuring a cross with sodium thiosulphate and time which cross becomes invisible first. I am going to use a syringe to measure the amount of carbon dioxide given of at regular intervals. This is because it is accurate as the smallest division on it is 1ml. The important variables are: * Temperature – if it is increased the reaction as the particles will have more energy. * Number of calcium carbonate chips – if there are a lot of chips more carbon dioxide will be formed. * Amount of acid – if there is more acid the rate of reaction will be faster. * Surface area – if the chips have a larger surface area then the rate of reaction will be faster. Prediction: I have chosen to investigate the affect of hydrochloric acid on calcium carbonate chips. I predict that as the temperature of the acid increases so will the rate of reaction. This is because for two substances to react they have to have a successful collision which means the have to collide with a minimum amount of energy which is called the activation energy. This diagram shows how the particles will react with each other with the minimum amount of energy (activation energy): The higher the temperature of the acid the faster the acid particles will be moving around as they’ll have more energy and there will more collisions. This energy will also allow there to be more successful collisions and so more carbon dioxide will be formed in smaller amount of time. Therefore the rate of reaction will be faster. This diagram shows the reaction of particles with more energy from the heat: I can also predict that the shape of my final graph of rate of reaction and temperature will look like this: From this graph I can predict that as I increase the temperature by 10 °C the rate of reaction will double. Apparatus: 1 Bunsen burner Calcium Carbonate chips Hydrochloric acid 1 Syringe 1 50ml measuring cylinder 1Heatproof mat 1 Wire gauze 1 Conical flask 1 Beaker filled with ice 1 Thermometer 1 Clamp I chose to use the syringe as it has small divisions to help me make Rate of Reaction :: GCSE Chemistry Coursework Investigation Rate of Reaction Coursework Aim: To investigate how temperature affects rate of reaction. Introduction: I am going to investigate how temperature affects the rate of reaction of hydrochloric acid with calcium carbonate. This is the reaction that will take place: Hydrochloric acid + Calcium Carbonate à ¨ Calcium Carbonate + Water + Carbon Dioxide The rate of reaction can be measured in various different ways: * Using a balance you can check the mass before the reaction and then after the reaction has taken place. Then check the change in mass. * You can also use the method of obscuring a cross with sodium thiosulphate and time which cross becomes invisible first. I am going to use a syringe to measure the amount of carbon dioxide given of at regular intervals. This is because it is accurate as the smallest division on it is 1ml. The important variables are: * Temperature – if it is increased the reaction as the particles will have more energy. * Number of calcium carbonate chips – if there are a lot of chips more carbon dioxide will be formed. * Amount of acid – if there is more acid the rate of reaction will be faster. * Surface area – if the chips have a larger surface area then the rate of reaction will be faster. Prediction: I have chosen to investigate the affect of hydrochloric acid on calcium carbonate chips. I predict that as the temperature of the acid increases so will the rate of reaction. This is because for two substances to react they have to have a successful collision which means the have to collide with a minimum amount of energy which is called the activation energy. This diagram shows how the particles will react with each other with the minimum amount of energy (activation energy): The higher the temperature of the acid the faster the acid particles will be moving around as they’ll have more energy and there will more collisions. This energy will also allow there to be more successful collisions and so more carbon dioxide will be formed in smaller amount of time. Therefore the rate of reaction will be faster. This diagram shows the reaction of particles with more energy from the heat: I can also predict that the shape of my final graph of rate of reaction and temperature will look like this: From this graph I can predict that as I increase the temperature by 10 °C the rate of reaction will double. Apparatus: 1 Bunsen burner Calcium Carbonate chips Hydrochloric acid 1 Syringe 1 50ml measuring cylinder 1Heatproof mat 1 Wire gauze 1 Conical flask 1 Beaker filled with ice 1 Thermometer 1 Clamp I chose to use the syringe as it has small divisions to help me make

Corporate Partnerships

Hurley Corporate Partnerships Corporate partnerships allow schools to gain extra cash by advertising a product or service around the school, this allows the school to gain extra money and the company possible sales. The supporters of corporate partnerships argue that it is a necessity for cash stripped schools. However the other side argues that school environment should be ad free and uninfluenced by corporations. I believe that corporate partnerships are a necessary part of our schools and only hold benefits, up to a certain point.Too much advertising could be distracting or even annoying for students, it should be up to the school to decide the perfect balance of education and ads. The advocates for corporate partnerships argue that; it provides schools with money that they possibly couldn't have raised before. They argue that the money gained could be used on multiple things, from things such as buying new updated books, hiring new teachers or even to finance a new wing for the m ain building as In the case of Calcareous HAS. Monitored advertisements for a certain product possibly oldest have an effect on student focus or learning.In Calcareous HAS we have ad banners on the bleachers near the football field. From my experience I haven't seen any student second glance at them or even give them a second thought, but It does provide the school with much needed money for construction projects. Who knows If we would've been able to afford a new wing to replace the portables without that aid. The opposing side argues that corporate partnerships take away from the learning environment. They argue that schools should always provide an environment free room corporate Influence and ads.What the backers of the opposing side don't take into account Is that students are already Influenced by ads every day, from the clothes they wear to the food they eat. Students see ads on TV's, radios, the Internet, the APS on their phone etc. Seeing ads In a school won't affect the st udent dramatically enough to dissuade him or her from learning. The promoters for the opposing side argue that corporate Influence In critical places such as the library or classrooms could distract the student from learning and are too extreme.I agree with this because classrooms and library are the place of learning, you should be able to read a book or write an essay without an advertisement for the new Nikkei shoes In your face. I believe that advertisements In learning areas would be annoying and are a violation of the students rights. This Is a heated topic that requires much thought and research. While advertisements In critical learning areas might be annoying and a hindrance to the average student. Overall It's obvious that corporate partnerships are necessary and re a good source of side revenue for schools.By exaggeratedly books, hiring new teachers or even to finance a new wing for the main building as in any student second glance at them or even give them a second thoug ht, but it does provide the school with much needed money for construction projects. Who knows if from corporate influence and ads. What the backers of the opposing side don't take into account is that students are already influenced by ads every day, from the clothes they wear to the food they eat. Students see ads on TV's, radio's, the internet, he APS on their phone etc.Seeing ads in a school won't affect the student opposing side argue that corporate influence in critical places such as the library or read a book or write an essay without an advertisement for the new Nikkei shoes in your face. I believe that advertisements in learning areas would be annoying and are This is a heated topic that requires much thought and research. While advertisements in critical learning areas might be annoying and a hindrance to the average student. Overall it's obvious that corporate partnerships are necessary and

How to Know If Teaching Is the Right Profession for You

How to Know If Teaching Is the Right Profession for You Teaching is one of the most rewarding careers that one can embark on. It is also one of the most stressful as demands and expectations are always changing. It takes a special person to handle everything that is thrown at teachers. Before making a life-changing decision, you need to be sure that teaching is the right profession for you. If the following five reasons ring true, then you are likely headed in the right direction. You Are Passionate About Young People If you are thinking about going into teaching for any other reason than this, you need to find another career. Teaching is difficult. Students can be difficult. Parents can be difficult. If you do not have an absolute passion for the young people that you teach, you will burn out quickly. Having a passion for the young people that you teach is what keeps a terrific teacher going. It is what drives them to spend long hours trying to figure out how to help those students who are struggling â€Å"get it.† That passion is the driving force behind doing your job year after year. If you do not have a total passion for your students, you might last a year or two, but you will not make it to year twenty-five. It is a must have quality for every good teacher. You Want to Make a Difference Teaching can be immensely rewarding, but you shouldn’t expect that reward to come easily. To make a real difference in a student’s life you have to be adept at reading people and figuring out their own unique preferences. Children of all ages can spot a phony quicker than any adult. If you are not there for the right reasons, they will certainly figure it out quickly. Teachers who are real with their students are the ones who make the most difference in their students’ lives because the students buy into what they are doing. Making the students believe that you are there to make a difference is something you have to show them over time. You Are Skilled at Instructing People in a Variety of Ways Students come from such diverse backgrounds that it is difficult to approach any two students in the same way. You have to be willing and able to teach the same concept through many different approaches, or you may not reach all your students. You will unquestionably not be an effective teacher if you only teach one way. A fantastic teacher is an evolving teacher. Teachers who search out better and new methods are the ones who will make it. Being flexible and adaptable are two key characteristics of a good teacher. It allows you to provide instruction in a variety of method that will meet all your students’ needs. You Are a Team Player If you are someone who does not work well with others, teaching is not the career for you. Teaching is all about relationships and not just the relationships with your students. You can be the greatest instructor in the world, and you limit yourself if you cannot effectively communicate with the parents of your students as well as your peers. Your peers can offer you so much information and advice that it is an absolute necessity be a team player who is willing to not only listen to advice but then to try to apply it to your teaching. If you cannot communicate well with parents, then you will not last long. Parents expect to know what is going on in their child’s life. You provide a large chunk of that information for parents of school-age children. A good teacher needs to be able to work with everyone involved in the school community. You Can Handle Stress Factors All teachers cope with stress. It is essential that you be able to handle everything thrown at you. There will be days when you are dealing with personal issues, and you have to overcome those once you walk through your classroom doors. You cannot let a difficult student get to you. You cannot allow a parent to dictate how you handle your class or a particular student. There are so many opportunities for stress within a classroom that an excellent teacher has to be able to handle it, or they will be burned out tremendously quick. If you cannot manage stress extremely well, then education may not be the right profession for you.