Charles Jacquier Lab 4 – Energy Sources and Alternative Energy SCI 207 Professor Selhorst Experiment 1: The Effects of Coal Mining Table 1: pH of Water Samples Water Sample Initial pH Final pH (24-48 hours) Pyrite 5 5 Activated Carbon 5 7 Water 5 5 POST LAB QUESTIONS 1. Develop hypotheses predicting the effect of pyrite and coal on the acidity of water? a. Pyrite hypothesis = If pyrite is added to water‚ it will make the water more acidic. b. Coal hypothesis = If the
Premium Sun Photovoltaics Solar cell
Lab 4: Le Chatelier’s Principle Name: Cammey Mahowald Lab Partners: None Date of Experiment: March 16‚ 2015 Course: CHE 112 Abstract: The purpose of this experiment is to understand the components of a reaction at chemical equilibrium and use Le Chatelier’s principle to predict the direction an equilibrium position will shift upon changes in the concentration‚ temperature‚ and pressure. It was determined that in the equilibrium of chromate and dichromate it is an exothermic reaction and in the
Premium Chemistry Chemical reaction Temperature
CHM130 Lab 4 Calorimetry Name: Conor Westerman Data Table: (12 points) ALUMINUM METAL Pre-weighed Aluminum metal -100 grams sample mass (mmetal) Temperature of boiling water and metal sample in the pot (Ti(metal)) 365k and 345k Temperature of cool water in the calorimeter prior to adding hot metal sample (Ti(water)) 364k Maximum Temperature of water/metal in calorimeter after mixing (Tf) 365k LEAD METAL Pre-weighed
Premium Water Heat Thermodynamics
Lab 4: Endocrine System Physiology | 1. | | Refer to Activity 1: Determining Baseline Metabolic Rates. How did the baseline metabolic rates of the three rats differ? Answer: | The metabolic rates for the thyroidectomized and hypophysectomized rats were lower than that of the normal rat. | | | 2. | | Why did the metabolic rates differ? Check all that apply: Answers: | The hypophysectomized rat lacked thyroid-stimulating hormone. The thyroidectomized rat lacked thyroxine hormone.
Free Insulin Diabetes mellitus Hormone
Chemicals Hordenine and methyl jasmonate were purchased from Tokyo Chemical Industry (Tokyo‚ Japan). Dimethyl sulfoxide (DMSO) was obtained from Sigma-Aldrich (Tokyo‚ Japan). Plant materials Two-year-old seedlings of Vitis vinifera cv. Koshu were cultivated in perlite:vermiculite (1:1) soil in a growth chamber (11.8 Wm-2 for 14 h in a day) at 27 °C. Seedlings of Fragaria×ananassa cv. Nyoho were grown in 55% peat moss‚ 10% perlite‚ 5% vermiculite‚ and 30% decomposed granite soil at 25 ºC in a greenhouse
Premium Marketing Brand Brand management
Antonio Navarro NETW310‚ Christine Adams 03/28/2015 Lab #4‚ Installation in the Outside Plant Section I: Use a reference such as the IRWA (www.irwaonline.org) to answer the question below. Cite your reference. (citation is worth 2 points) 1. What is a right-of-way? (4 points) Full Definition of RIGHT-OF-WAY 1 : a legal right of passage over another person’s ground 2 a : the area over which a right-of-way exists b : the strip of land over which is built a public road c : the land occupied
Premium Time Present Legal terms
Lab 4 Identify Motherboard Components Larry Pfaff NT1110 ITT Technical Institute Ms. Pritchard The LGA 1156 connector is used with these processors Intel Celeron Intel Pentium Intel Core i3 Intel Core i5 Intel Core i7 Intel Xeon Connects to a northbridge using the Front Side Bus‚ allows the following connections to be made from the processor to the rest of the system and used to communicate with graphics and display ports H55 Chipset is used on platforms powered by the Intel® Core™ i7-800‚ Intel®
Premium Intel Core 2 Intel Core
interpret this is that at a constant pressure‚ volume and temperature are directly proportional. Materials Lab quest Vernier gas pressure sensor Temperature probe 20 mL gas syringe 125 mL Erlenmeyer flask 3 600mL beakers hot plate Dry ice rubber stopper with 2-way valve Procedure and observations (Part 1) The first thing we did in this experiment was measure pressure and volume. To do this we used the lab quest and syringe. You attach the syringe to the valve of the gas pressure sensor. We pick a volume
Free Gas Pressure Temperature
I lab Week 4 Exercise 1 As most countries in the Asian and Pacific region‚ contemporary Mongolia is undergoing mobility transitions. Mongolia is in the midst of its demographic transitions and has pursued model of economic growth that has been more focused on import-substitution. In other hand‚ Mongolia is in demographic transition‚ witnessing a moderate‚ but decreasing‚ population growth‚ sustained decline in fertility and a steep increase in the number of young adults entering the labor market
Free Demography Population
The methylene blue staining procedure is used to measure yeast viability based on the assumption that the methylene blue will enter the cells and be broken down by living yeast cells that produce the enzymes which breaks down methylene blue‚ leaving the cells colourless. The non- viable cells do not produce this enzyme (or enzymes) and as such the methylene blue that enters the cells are undegraded causing the cells to remain coloured (the oxidized form concentrates intracellularly). The coloured
Premium Yeast Ethanol Enzyme