Lab Report Help Sample

Lab Report Help Paper Mrs. Wolf Period:3 AP Chem Lab Report: Determination Of the Molar Volume Of a Gas Objective: TO react MGM and HCI and form hydrogen gas, then after collecting lab data, determine the hydrogen gass molar volume at STEP through calculation. Materials: -Labiates data collector ; 3. MM of HCI solution Ribbon of MGM metal Gas pressure sensor Temperature probe 600 ml beaker 125 ml Erlenmeyer flask 20 ml gas syringe Rubber stopper with two-way valve Plastic tubing Analytical balance Procedure: I. Retrieve an Erlenmeyer flask then determine its volume. 2. Obtain a MGM ribbon from teacher then make sure to polish until sample is a metallic silver then measure ribbon on a analytical balance then place in flask, afterwards record mass in your data. 3. Fill a large beaker With room temperature water. 4. Start up Labiates and attach the pressure and temperature probe. 5. Connect a rubber stopper to the pressure probe and later to the flask with valve closed so that absolutely no hydrogen gas will escape. 6. Posses a five ml sample 3. 0 M HCI solution and place in a syringe. Connect syringe to the two-way valve on stopper 7. Calculations for % error- 22. 4-224 = 0% for trials one and two. 224 6. A student fails to polish each sample of MGM ribbon before massing them, What effect does this error have on the calculated molar volume of hydrogen gas? Mathematically justify your answer The mass of the MGM ribbon would be higher than it should which would lead to the moles of MGM and H2O (because they both have a mole ratio) to be higher hen it should. Then when you divide liters by moles in the molar volume calculation you will be dividing by a larger mole number, thus producing a smaller number for the molar volume. We will write a custom essay sample on Lab Report Help specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Lab Report Help specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Lab Report Help specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Which in turn would give lower liters per mole ratio and State that there is less H2O gas then there actually is. Molar Volume Calculation for distorted trial one ;0. 011 L H2O = IS. Mm/L (4. 9 x 10-4 -e . 0002 mol of distortion) 7. A different student fails to insert the stopper into the flask while determining the available volume of the 125 ml flask. What effect does this error has on the calculated molar volume? Mathematically justify your answer. Some of the H2O gas would be let out, thus in turn would lower the volume of the gas and giving it a lower molar volume. Molar Volume Calculation for distorted trial two: (0. 13-0. 002 L gas let out) 5. 8 x 10_4 = 19. 0 m/L Summary: What was basically supposed to be done in this lab was we were to react a ribbon of magnesium and a HCI solution inside of a Erlenmeyer flask to form H2O gas. While we were doing this we were to collect all different types of data variables such as temperature and pressure, During the performance of the ABA we had to make sure that we set up the sensors, syringe and rubber stopper all correctly, otherwise errors such as gas escaping or an incorrect pressure reading could all lead to the molar volume calculation being distorted. Some things that could hue been learned by doing this lab would be using gas equations and some lab data you can project a molar volume for literally any gas. Also I could hue learned to operate many different lab equipment that have never had any experience using before, such and the syringe and learning to correctly use a two-way rubber stopper. The data was given because I wasnt there to perform the lab gave me a zero percent error when I worked the numbers through the calculations, but as previously stated there could be many sources of error including not polishing of the magnesium, adding to much of the HCI solution, not using the syringe correctly, and possibly letting out some of the H2O because someone might have accidentally left the two way valve open. Overall this looks like a lab were a tremendous amount of vital skills could have been learned, and Im severely disappointed that had to miss it.

Effective French Writing Tips for Writing a Persuasive Essay

Effective French Writing Tips for Writing a Persuasive EssayStudents must be ready to write a persuasive essay. If they do not have an idea of what they should include in it, they should not waste their time. There are many places where they can get good writing tips.Students may look at old textbooks or magazines that teach good writing skills. They may read a lot of books and other materials on the subject. They may find a lot of other written materials by themselves. Students should take these suggestions into consideration.Students may also look for tips from fellow students. This may be the best solution to students who are not too sure how to make a persuasive essay. They can also get suggestions from them. Another way students can look for ways to make a persuasive essay is by looking on internet.French is one of the most useful languages for teachers and students. Teachers may learn a lot of tricks and strategies. They can use them to get good results in writing persuasive es says. Students can also learn a lot from reading French writing techniques and textbooks. They can use these techniques in their writing and learn to write persuasively.A persuasive essay can improve your career. It can improve your communication with your employers and students. Students should also learn some good tips for making a persuasive essay. They should always consider the time, place and materials for making a persuasive essay. You can find good tips in most books or magazines. Students can also learn to use the time, place and materials properly.Students must always remember to use your whole brain to make a persuasive essay. You should think about all the possible ways to persuade the reader. You should learn to make a persuasive essay very well and so well that it is not believable. You should think about a plausible reason for making a persuasive essay. Students can also study with some published research in French literature and classics.A powerful and effective pers uasive essay will convince a lot of people. It will allow you to find out new places where you can make use of your persuasive skills. Students can learn how to make a persuasive essay by reading books, magazines, magazines or other sources. Students can also learn how to make a persuasive essay by talking to professors. They can get some useful advice from professors by asking them for writing tips.