Hypothesis: create a hypothesis for this lab that answers the question above the hypothesis must be worded so that it can be tested do this by expressing the hypothesis using your independent variable (the variable you change during your experiment) and your dependent variable (the variable you observe changes in the dependent variable. Sci 203 lab report in: science submitted by coop101 words 372 pages 2 name: harold e cooper date: 13 july 15 sci103 phase 5 lab report title: potential and kinetic energy instructions: enter the virtual lab and conduct the experiments provided of each ball on each ramp how would this speed change if each ball’s mass was doubled. Phase change lab report by dylan norfolk abstract: the purpose of this experiment is to study the energy changes associated with the phase changes of water in this experiment we know the water is gaining energy so we know the heat is going to be positive and we can use the equation mica to find the energy change. The abrupt change in slope, which occurs when solid a begins to form, throughout the course of the lab 3 weigh all samples to an accuracy of 001 g 4 transfer the first sample into the inner test tube liquid phase diagram (ie, temperature as a function of the mole fraction of naphthalene. In this lab you will investigate the three states of matter, explore the nature of physical versus chemical changes, and then use that knowledge to identify the type of change involved in several experiments.
The energy of phase changes department of chemistry university of kansas the energy of phase changes pre-lab safety: goggles must be worn at all times at atmospheric pressure liquid n record all the values from all the groups for use in your lab report. Name_____ period_____ virtual phase changes lab in this lab you will use a website applet to experiment with different phases of matter and how. Student work sample: phase change lab this is when the students are actually performing the lab the information, procedure, data table and analysis questions (to be completed when data is finished being collected) can all be found in the student lab sheet. Name: _____ lab: phase changes of water introduction: water is a substance commonly found on earth and in the atmosphere in all three phases of matter (solid, liquid, and gas) this unique property of water is a major factor in determining weather.
The angle of this “rotation” is called the phase angle click on the graph window and change the options, to turn off the connecting lines include a statement that the work done in this lab and submitted in this report is yours and your partners lab7txt last modified: 2015/06/08 12:48 by garnett. Sci203 phase 1 lab report human impacts on the sustainability of groundwater instructions: you will need to write a 1-page lab report using the scientific method to answer the following question: • if current human development does not change, will groundwater sustainability be affected when your lab report is complete – submit it in the [. Name_____ ice cream lab lab report think: what are ways of changing liquid milk to a solid materials: milk ice sugar small zip-lock vanilla large ziplo- ck salt spoon.
Investigating phase changes analysis: (answer the following questions in your lab notebook in complete sentences) 1 describe the shape of your graph for h 2 o 2 what happened to the temperature of the ice. Ice cream lab & application heat energy is needed to change phase from a solid to a liquid list the possible sources of the heat needed for this phase change in your baggie which source do. Name: date: instructor’s name: assignment: sci203 phase 1 lab report title: human impacts on the sustainability of groundwater instructions: you will need to write a 1-page lab report using the scientific method to answer the following question: • if current human development does not change, will groundwater sustainability be affected. Pre-lab: 1 what phase is the lauric acid in at the beginning of the lab _____ 2 what will be the next phase the acid changes to when you add heat phase change: simulation worksheet 2 what was difficult about the procedure (measuring the temperature, keeping the time.
Answer key phase change lab is available in our book collection an online access to it is set as public so you can download it instantly our book servers saves in. If you followed the instructions in the 'walk up the phase change pathway,' here is what you should have drawn leg 'a' is the warming of ice leg 'b' is the melting of ice leg 'c' is the warming of water leg 'd' is the boiling of water to steam leg 'e' is the warming of steam melting lab. High performance liquid chromatography (hplc) makes use of a high pressure pump to deliver a mobile phase solvent at a uniform rate at pressures that are typically from 500 to 5000 psi the most obvious advantage of hplc over gravity liquid chromatography is that samples can be separated much more quickly.
The procedure for this lab took data gathered from hydrologic cycle and shows the impact of industrialization and human development of ground water from over 3 centuries the methods show over time what happened to forests, groundwater, saltwater, farming, industrial development and population and how these changes impact us. Best answer: each form of a group of molecules is called a phase, so you can have a gaseous phase, a liquid phase, and a solid phase when the subject (in this case, the ice) changes from a solid to a liquid, that's the phase change so you probably have to record the temperature at which the phase change takes place. Phase change: the transition between states of solid, liquid, or gaseous matter notes that need to be included in your wiki before doing the experiment: (use pages 60 – 63 in your book) 1. Sci203 phase 1 lab report human impacts on the sustainability of groundwater instructions: you will need to write a 1-page lab report using the scientific method to answer the following question: • if current human development does not change, will groundwater sustainability be affected.