HOW MUCH WATER IS IN THE HYDRATE? LABORATORY REPORT PREPARED BY: CHEMISTRY 113 LAB February 2016 PROFESSOR TEACHER ASSISTANT: Introduction: A hydrate is a substance that water. It is important to know how much water is in the hydrate because when performing scientific experiments, it is required to know the mass of each substance. If the substance is heated, then the hydrate can lose the water and the water evaporates, which is called an anhydrous substance. Since water is polar
Words: 448 - Pages: 2
Drying Agents Drying agents (also called desiccants) come in various forms and have found widespread use in the food, pharmaceuticals, packing, electronics and many manufacturing industries. Every time an organic compound is in contact with water, a small amount of substance will be dissolved in it and also a quantity of water will be found in that organic compound. It is considered that water is hard to be removed from the compounds because they are forming strong bonds with water molecules (e
Words: 489 - Pages: 2
Discussion: The purpose of this lab was to investigate the effects that the intermolecular forces of different sized alcohols had on temperature decrease during evaporation. This was investigated using a thermometer to measure the initial temperature of a cotton ball containing 10 drops of an alcohol and its final temperature after 3 minutes of evaporation. It was hypothesized that Butanol, the largest molecule and the one with the strongest bonds, would experience the least temperature decrease and Ethanol
Words: 340 - Pages: 2
long-term weather pattern in a particular area. In this experiment, the researchers investigated key climatic factors, namely: temperature, light intensity, relative humidity, wind speed, wind direction, atmospheric pressure, precipitation and rate of evaporation. The study sites of the investigators are located at the College of Medicine, Pedro Gil St., University of the Philippines Manila and were collected last November 19, 2010. The ecological significance and possible relationships between the two climatic
Words: 3797 - Pages: 16
Chemistry Design Lab Rate of evaporation kheshavan Research question How does surface area of ethanol in contact with atmosphere affect the rate of evaporation of fixed volume of ethanol? Variables - Independent variable Surface area of ethanol in contact with atmosphere. I’m going to do this by varying radius of different test tubes, beakers and other materials which is presented in the lab. - Dependent Variable The rate of evaporation. I’m going to measure this by the
Words: 447 - Pages: 2
DOES COLD WATER FREEZE FASTER THAN HOT WATER? http://math.ucr.edu/home/baez/physics/General/hot_water.html Hot water seems to freeze faster than cold water, known as the Mpemba effect. The effect was named after the Tanzanian student who in 1963 noticed that hot ice cream mixfreezes faster than a cold one. The effect was first observed by Aristotle in the 4th century BC, then later Francis Bacon and René Descartes. This seems impossible, right? Many of you may have already come up with a common
Words: 984 - Pages: 4
A Summary of the Hydrologic Cycle The hydrologic cycle begins with the evaporation of water from the surface of the ocean. As moist air is lifted, it cools and water vapor condenses to form clouds. Moisture is transported around the globe until it returns to the surface as precipitation. Once the water reaches the ground, one of two processes may occur; 1) some of the water may evaporate back into the atmosphere or 2) the water may penetrate the surface and become groundwater. Groundwater either
Words: 2875 - Pages: 12
B.Sc. degree in environmental studies the thermal environment Dr. Marcus M. Keane, Department of Civil and Environmental Engineering, University College Cork. the thermal environment • Metabolism and comfort • Bodily mechanisms of heat transfer and thermostatic control • Metabolic rates • Clothing • Environmental influences on comfort • Fanger's comfort equation • Measuring Instruments
Words: 1276 - Pages: 6
Investigating Water Conserving Structures in a Range of Terrestrial Australian Plant Specimens Aim: - To make observations and draw water conserving structures present in various Australian xerophytic plants and to relate these structures to their functions. Hypothesis: It is believed that a range of xerophytic Australian plants will demonstrate water conserving structures such as rolling of the leaves, thin and long leaves, thick layer of cuticle, hairy leaves, small leaves and flowers
Words: 715 - Pages: 3
Geography • Study of the relationship between man and environment in course of time and space • The study of the earth and its features and of the distribution of life on the earth, including human life and the effects of human activity. Latitude: is a geographic coordinate that specifies the north-south position of a point on the Earth's surface. Latitude ranges from 0° at the Equator to 90° (North or South) at the poles. Latitude is used together with longitude to specify
Words: 842 - Pages: 4
