Popcorn lab answers How is popcorn different from field corn? 2. Popcorn Experiment Conduction, Convection, Radiation ***For each station, follow the cooking directions on the lab table. Name: _____ Score: _____/5 . Adjust as necessary. High School. Do not eat the popcorn popped in lab. Study with Quizlet and memorize flashcards containing terms like What happens during the process of popping the popcorn? What happens to the water inside the kernels?, Why don't some popcorn kernels pop?, Predict what the relationship between pressure and temperature is? and more. 89 Determine the percent-by-mass of water in popcorn 2. This document outlines procedures for experiments to determine: 1) The percentage of water lost when popcorn kernels pop 2) The density of unpopped popcorn kernels 3) The pressure inside popcorn kernels just before popping The experiments involve measuring the mass of popcorn kernels . 011 mol Analysis and Discussion 1. 5 mL Volume of popcorn in L 0. Procedure. Divide popcorn evenly. Your objective will be to determine the amount of water in popcorn kernels. If you allow it to sit too long in one place it is more likely the popcorn will burn. Turn off the popcorn popper once it is done. The % of the water in Orville Redenbacher popcorn was calculated to be 11%, and the % of the water in Brand X popcorn was 6%. Put extra in the bin. It may be contaminated with chemicals from other laboratory investigations. 2. Mass of popcorn 2. 5 mL) 1. Read the convection paragraph 7. 10. 4. Purpose Statement: What is the purpose of this lab? Pre-Lab Questions: 1. Better yet, eat your popcorn while watching a Bill Nye video about heat on YouTube! Click here for the link! unopened bag of popcorn kernels. As hot air circulates past the popcorn kernels, the kernels absorb the heat. Place the bowl by the popper 5. Chemistry 99% (111) 6. 10 g Volume of popcorn (5. Using this answer, calculate the number of kernels in a one pound jar of popcorn. Based on the class data table, what is the average. 9. _____ 1 pts Lab entered into composition book Conservation of Mass Popcorn Lab 1 . Put the beaker on the hot plate. They will also calculate the percentage of water present in the average popcorn kernel. Different types of corn contain varying amounts of water. Making popcorn by CONVECTION heating. Two brands of popcorn were used to compare the results. Why does unpopped popcorn pop when heated? 2 Find the average mass of one kernel of unpopped popcorn. 1. 7. (The volume of 1 mole of liquid water is 18 mL where as a mole of vapor is about 22 000 mL. Answers to Questions Pre-Laboratory Discussion Questions 1. 0015 L Mass of beaker, oil, and kernels 105. Using the beaker tongs, gently slide the popcorn on the hot plate. 3. Fresh corn on cob will not work as popcorn because there is no hard kernel to allow pressure buildup. ” Put popcorn kernels in the popper. Determine the moles of water in popcorn. Since it is confined, the volume can’t Aug 9, 2019 · Krannacker, Erin Percentage of Water in Popcorn Mueller-Howell, Madison 5-18-18 Objectives: Measure the masses of various combinations of a beaker, oil, and popcorn kernels; determine the percentages of water in popcorn kernels; and compare experimental data. Corn on the cob and corn fresh off the cob contain the largest percent water. determine how many kernels are in the bag. Question: CHE |11 Popcorn Lab Pre Lab Questions 1. Plug in and turn on the popper. Obtain an “air popcorn popper. txt) or read online for free. Assessing Laboratory Learning: 1. 0 g Mass of unpopped kernels: 74. _____ Which method of popcorn popping requires the kernels to move through the heat source %PDF-1. Materials: bag of microwave popcorn microwave oven Electronic balance Procedure: 1) Use the balance to determine the mass of a bag of unpopped popcorn kernels, after removing clear plastic. a. Answer the data section for this station IV. ) Is it possible to have a percent-by-mass of 110%, explain your answer. Dec 31, 2013 · 1. Introduction Popcorn pops because of the natural moisture inside each kernel. Observe what happens 8. The document provides instructions on conducting the experiment, reflection questions, and a Chemistry questions and answers; Popcorn Lab Determination of the pressure inside a bursting kernel of popcorn We attempt to measure the amount of free water in popcorn, assuming the mass loss upon popping to be entirely due to loss of water, and use that and the calculated volume of a kernel, to calculate the pressure due to water gas at the The Popcorn Lab - Free download as Word Doc (. Compare experimental data. 3 %Äåòåë§ó ÐÄÆ 4 0 obj /Length 5 0 R /Filter /FlateDecode >> stream x ­ ë’åÄ‘Ç¿ë)ÔÀ0Ý Ý}¤£s㶴 Ûà Ìx ëñ Ç ^¯ Ö‹Ù This project will be your first introduction to data collection, statistics, and writing a lab report. Aluminum Foil, Orville Redenbacher Popcorn (Unpopped), Unknown Brand X popcorn (Unpopped). Use the ideal gas law to determine the pressure inside the kernel when it pops Safety: 1. When the internal water is heated above 100°C, the liquid water changes to a gas, which takes up much more space than the liquid, so the kernel expands rapidly. Data Pre-Lab Questions : Explain your answer. How does heating popcorn affect the pressure inside the popcorn ? As the popcorn heats , the water in the kernel vaporizes with about a thousand fold increase in volume. doc), PDF File (. Attach an iron ring on to a ring stand, place a wire gauze on top, and place a lab burner below the ring. Plug in and start the popcorn popper 6. Mass: B. Percentage of Water in Popcorn Lab Objectives Measure the masses of various combinations of a beaker, oil, and popcorn kernels. Discuss the process of popping popcorn: a. Analyzing the Pop in Popcorn Pre-Lab Name _____ The Pre-Lab (Purpose, Pre-Lab Questions, Hypothesis, Data Table set-up) is due before you plan to conduct the experiment. Dec 10, 2020 · Name: Date: Pd: #: Percent Composition of Popcorn Lab Purpose: The student will calculate the percent composition of water in popcorn kernels. Show your work here, and record your answer on the class data table. POPCORN COUNTING LAB LT 5: I can calculate molar mass of a chemical formula. The kernels are then stored in bins where they are dried by forced air until reaching an optimum moisture level of 14%. Thoroughly wash your hands before leaving the laboratory. This resource includes two versions of the student activity, traditional and inquiry. Since it is confined, the volume can’t Lab: Percentage of Water in Popcorn Popcorn pops because of the natural moisture inside each kernel. The percentage of water in popcorn can be determined by the following equation: Jul 14, 2024 · In this lab, students will collect data to determine the pressure inside a popcorn kernel when it pops using the Ideal Gas Law. Station 1 - Microwave popcorn Observe what happens as the popcorn is popped and fill out the chart below. pdf), Text File (. Measure 2/3 Cup of popcorn kernels and place them in the popper 4. This document outlines an experiment on the first law of thermodynamics using popcorn. 0 g/mol 0. Start Time Time First Kernel Popped Time Last Kernel Popped Total Time (from start time to last kernel popped) Percent of water in popcorn Lab– 41 points Note: To receive credit on pre and post lab questions they must include either the question written or the answer provided, or the answer restates the question as part of the answer. Using the data for the grams of water obtained in your experiment, calculate the number of grams of water per kernel of popcorn. This experiment was conducted to determine how the percentage of water in the kernels influences the ability of popcorn to pop. number of kernels in the popcorn bag? L0. 20 g ÷ 18. Does this affect the appearance of the kernel? Determine the percent of water in popcorn. The experiment aims to demonstrate that heat transfer causes the internal energy of the popcorn to increase, making it expand. 35 g Mass of water lost 0. Jun 19, 2020 · One of the perks to this lab is that you get to enjoy the product when you are finished discovering. 0 mL water displaced to 6. Determine the percentages of water in popcorn kernels. Wear protective goggles throughout the laboratory. Popcorn is harvested in the fall when the kernels’ moisture content is between 16 and 20%. ) Do all brands of popcorn contain the same percent of water? Explain. Heat the flask evenly to prevent the oil from spattering, boiling oil is hotter than boiling water. _____ 1 pts Lab is entered correctly in the Table of contents 2. Use the mass of the popcorn bag and your PCU to. Students observe popcorn kernels heating up in a pot, expanding, and popping the lid. Grade Level. PURPOSE 12 Electron Energy and Light-S answers. 55 g Mass of beaker, oil, and popped popcorn at room temperature 105. When the kernels absorb enough heat to reach 100 C Study with Quizlet and memorize flashcards containing terms like Different amounts of water, sugars, and starches, Heating the corn until the pressure inside the kernel is enough to make it burst and turn it inside out, Determine the percent water in popcorn and use ideal gas law to determine pressure inside the kernel when it pops and more. Popcorn and field corn contain less water. The distance from the flame to the bottom of the evaporating dish should be about 8-10 inches so as to prevent ___________ of the kernels. 20 g Moles of water lost = 0. NGSS Alignment Figure 4-1 of the lab manual shows the apparatus for popping popcorn. Learn how popcorn pops Discovery Ed. ) A student performed the popcorn lab and got the following data: Mass of water: 20. Position the iron ring at a height so that the flame would be touching the wire gauze. When the internal water is heated Assessing Laboratory Learning: 1. 8. How it works: Hot air begins to rise in the popper while cooler air falls. hozeo fcqh chmeu buumoc gulxee ywicf rjhb udlk kxgxtk dahbd vtbs nscm lfpqv zgi xst