Please answer the Pre-Lab questions regarding calorimetry.
1) During Calorimetry experiment, it is the change in heat content that is measured.
The heat gained by the calorimeter, Q, according to the equation Q = m * c * delta(T), where m represents the mass of water , c represents the heat capacity of water, or 4.184 joules per gram per degree Celsius, J/gC, and delta(T) represents the change in temperature.
Change in temperature, changes the amount of heat gained by the calorimeter
2) The mass of water in gram is to be specified as the molar heat gained varies
3)
4) Peanuts burn as they are organic in nature. They contain proteins, fatty acids etc.
Orange slice does not burn easily as it contains nearly 90% water component along with ascorbic acid ,i.e., vitamin C.
The oil from citrus fruits is volatile and flammable. When you squeeze the oil out of the fruit peel it vaporizes enough that you can flash your flame. It is primarily the D-limonene in the citrus oil that vaporizes and ignites.
Please answer the Pre-Lab questions regarding calorimetry. Suggest possible ways to improve the calorimeter, including materials...
Pre Lab for Calorimetry Introduction Calorimetry is used to determine the specific heats and heat of transformation of materials. One can carry this out in one of two ways. One way is to take a material and isolate it from the environment and then put it a know power (energy per unit time) and measure how the temperature changes with time. When the material undergoes a phase transition (such as from ice to water) the temperature will stay constant until...
need help with questions 1-5 please Questions: 1. In this lab, an eudiometer tube was first filled with 10 mL 6M HCl solution and then was topped to the brim with water. Why was the entire eudiometer not filled with 6M HCI? 2. What is the purpose of re-adjusting the height of the eudiometer tube such that the solution level inside is same as outside ? 3. In this tab, 0.012-0.020 g of Magnesium strip is suggested for each run....
calorimetry experiment Guidelines for Discussion: Answer the following questions, as per your experimental observations. 1. What happens if initial temperature is not recorded in each experiment? 2. What happens if the calorimeter is not covered properly? 3. How will you get the final temperature? 4. What are the techniques used in this experiment? 5. Comment on possible accuracy of your results Guidelines for Conclusion: 1. What is your result considering the objective (s) of the experiment? 2. What did you...
9 Pre-Lab Questions 1. Why can you use a calorimeter to study the exchange of heat? EXPERIMENT A calorimeier is a device u s eol to measure hot of roactisn th lainer wn th vr meni o insulated wall's to prevent hret exchange he enviran 2. Why is specific heat an intensive property? energy at o particular temperature 'is the some Its 9uanhhy towhich no physical alimen sian is agsian eof Nomaler heuw mach alaminunh, Is abiliy to aborb heat...
Please help answer questions for esterification pre-lab. 4. Why do we use DMSO to prep the bio-sample rather than using Di water? (2 pts) 5. How does the KMnO4 stain detect the alcohol on the TLC plate? (2 pts)
please answer all questions if possible. Thank you! Pre-lab Questions of HESS'S LAW . About 2 grams of solid NaOH is measured to the nearest centigram and added to 100.0 of HO The temperature is monitorod as the NaOHs) dissolves. The density of water and the dilute selutions is 1.00 gmL The specific heat capacity of water, e, is 4.184 JgCThe data table is recoeded. Complete the blank cells in the table Rcaction 1.86 g 100.0gHO1.86 g NaOHs) 28.4C 1....
i am needing help with question 4 and 5. anything else helps Name Experiment 7 Calorimetry Postlab: Questions 25 points possible Section (day&time) Instructor Due date Answer the following questions using complete sentences and support your answers with swers calculations, if desired. Attach additional pages as necessary. Handwritten or typed an are acceptable.(5 pts per question) 1. If som e of your hot metal remained in the test tube when it was transferred to the eter, would its calculated molar...
an introduction to chemistry lab Pre-Lab Study Questions 1. How can the presence of an ion in a solution be detected? ไป dedeed by a lame the ions undec gp color changes By com paring knoum olion o a unKnown vo Can co ure he color ehanges in he lame If a reaction produces an insoluble salt, what will you notice happening in the test tube? 2. So,It wany saヅdissolved and tt a, precipitate oat, solut kan bep eadind on...
Please give detailed answers to the pre and post lab questions. Thank you! NUCLEOPHILIC DISPLACEMENT- FORMATION OF AN ETHER BY AN SN2 REACTION Bond formation by use of an SN2 reaction is very important for organic and biological synthesis. Many new bonds formed make use of this versatile reaction pathway. In this reaction, one partner is the nucleophile and the other partner is the electrophile. The electrophile will have a leaving group that will be lost in the reaction. In...
Name PRE-LAB QUESTIONS 1. Using your previous general chemistry knowledge, give some guidelines for predicting the sign of AH" in terms of breaking and forming bonds. 2. Which two scenarios (one for each) from Table 8-1 are consistent with what we know about the melting and forming of ice as a function of temperature? 3. Write the balanced chemical equation for the reaction of hydrochloric acid with calcium hy- droxide. What are the total ionic and net ionic equations for...