Investigation 4.2: Factors Affecting Viscosity Question How does changing the temperature (°C) of glycerin affect the viscosity s -1 of glycerin (l)‚ when tested by dropping a marble from a constant height into the glycerin (l) and timed with a stopwatch until the marble hits the bottom? Design Independent Variable: The independent variable of this experiment is the temperature (°C) of the glycerin (l). Dependent Variable: The dependent variable of this experiment is the viscosity s -1 of the glycerin
Premium Glycerol Viscosity Liquid
Sample Questions 1. In the chemical formula for ammonia‚ NH3‚ what does the subscript 3 represent? (a) the number of ammonia molecules that will bond together (b) the number of nitrogen atoms in each molecule of ammonia (c) the number of nitrogen and hydrogen atoms in each molecule of ammonia (d) The number of hydrogen atoms in each molecule of ammonia 2. The diagram above shows a block from the periodic table. The number six represents the following consumers eats only producers? (a) atomic
Premium Chemistry Oxygen Hydrogen
Infrared Spectroscopy Aim: To obtain IR spectra of know solid sample and liquid sample using the following sample preparing technique: Prepare solid IR sample using Solid Pellet Samplin Technique Use IR is used to identify functional groups. 5 major functional groups easily identified by IR spectroscopy: 1. C=O 2. C–O 3. OH 4. Phenols 5. C–H Instrument details Type of spectrophotometer: Nicolet 380 FT-IR spectroscopy‚ Nicolet Avatar 360 & Thermo Scientific iS10 FT-IR Spectrometer
Premium Infrared spectroscopy Infrared Spectroscopy
| The Chemistry of Natural Waters | Chem 111 Sec 104 | | Hyunjung Hwang | 11/6/2012 | TA: Sarah Boehm‚ Group members: Rachel Hoffman‚ Dan Hirt | Introduction Water hardness is a major part of overall water quality that affects many industrial and domestic water users. Water is considered hard when there are high concentrations of the divalent cations Magnesium and Calcium; water hardness is considered as the sum of both the calcium and magnesium concentrations and expressed as
Premium Water Calcium Hard water
Interactions with others are the most powerful influences that impact on an individual’s sense of belonging. This is portrayed through various techniques in the text Rainbow’s End by Jane Harrison and the graphic novel The Arrival by Shaun Tan. Harrison clearly conveys these interactions of belonging by utilizing the protagonists Gladys‚ Dolly and Nan Dear who desperately desire interactions with the white society. This is illustrated by the persona Glady’s who goes to great extent to interact
Free Culture Sociology Interaction
Today is not just a new day. Everyday I always ponder and wonder about a lot of things. Sometimes I think about yesterday and wonder if today will be a lot better than yesterday. Let me just share to you what I’ve thought of... I’ve thought of many names‚ and not all of them are pleasant. I am many things‚ but not all of them are good. Or so some of the mundane flocks might think. But I am who and what I am‚ and I have a duty to myself. Looking back to those years past I could almost
Premium Ayumi Hamasaki Debut albums Thought
security and acceptance. This leads us to belive that a sense of belong can emerge from the connects made to people or places. This concept will be evaluated and discussed with textual reference and quotes from “ rainbows end” by jane Harrison‚ and “ the year my voice broke” by rainbows end talks of the conflict and descrimination of the aboriginals in white society. The main idea explored is that the indigenous community does not belong on the same margins as white society‚ even though they rightfully
Premium Racism White people Discrimination
The End of the Rainbow “Eldorado‚” is a poem by Edgar Allen Poe in which an intrepid knight embarks on a journey to find Eldorado‚ the mythical city of gold. The poem begins in a seemingly upbeat manner‚ describing the initial progress of the daring knight‚ and introducing the idea of an outwardly insignificant shadow following said knight on his quest. As time passes‚ the knight grows old and he becomes increasingly frustrated by his failure to find the legendary city. Eventually‚ his vitality
Premium Edgar Allan Poe Poetry Stanza
20 9. Classic chemistry experiments Unsaturation in fats and oils Topic Organic chemistry‚ saturated and unsaturated fats. Timing 45 min. Description The students titrate different oils and fats mixed with Volasil against bromine water. Apparatus and equipment (per group) w White tile w Conical flask w Dropper pipette. (Use the type of teat pipette usually fitted to Universal Indicator bottles‚ that do not allow squirting – eg Griffin.) w Burette (filled with bromine
Premium Fat Chemistry Titration
Redox Titration Lab ABSTRACT: In this lab‚ 0.010 M purple-colored potassium permanganate solution was standardized by redox titration with iron (II) ammonium sulfate hexahydrate (FAS). The average mass of the three flasks of FAS was 0.483 grams. Once the concentration of the standard solution of KMnO4 (aq) was determined‚ it was used to determine the concentration of Fe2+ in iron pills. On average‚ there was 0.01813 L of solution used. With this information and the balanced net-ionic equation
Premium Titration