Lesson 2 Lab: Weighing on an Analytical Balance & Distillation PART 1 Begin by viewing the following Thinkwell video 15.1.8 CIA Demonstration: Weighing on an Analytical Balance After you watch the above video‚ answer the questions below in sufficient detail: (a) (2 pts) What are the features of an electronic balance? Include all of those discussed in the video. Answer: There were two features of an electronic balance discussed in this video. First there is the electronic read out which makes
Premium Distillation Accuracy and precision
Pharmaceutics Experiment 2 Preparation of a Hand Cream OBJECTIVE 1. To learn the method of preparing a hand cream. 2. To appraise the function of the ingredients in the hand cream. BACKGROUND Cream is a kind of dosage form and particularly hand cream is formulated to carry out a variety of cosmetic functions. Among these are softening and moisturizing the skin; elimination of natural waste products (oils) by emulsification; and cooling the skin by radiation‚ thus helping to maintain body temperature
Premium Water Fatty acid Chemical polarity
Lab 2.1 Exercise 2.1.1 All these elements are necessary because each allows the other to function and do its job. Without Media the signal cannot transmit. Without Interface the computer cannot access the Media. Without the signal the electricity or copper wires cannot transmit information. Without Pattern there would be no established format for the signals. And timing lets the devices know when the pattern starts and ends. Exercise 2.1.2 Almost all networks in use today are based in some fashion
Premium Peer-to-peer Computer network Internet
“2-7 Algebra Lab Percentiles” 1. Find the median‚ lower quartile‚ and upper quartile of the scores. Median: 16.5 Lower quartile: 10.5 Upper quartile: 23.5 2. Which performer was at the 50th percentile? the 25th percentile? the 75th percentile? 50th percentile: Arnold 25th percentile: Ingrid 75th percentile: Brooke 3. Compare and contrast the values for the median‚ lower quartile‚ upper quartile‚ and the scores for the 25th‚ 50th‚ and 75th percentiles. If you estimate the percentiles‚ then the
Free Median
______________________________ 2. Check the appropriate boxes to show which of the following items are minerals or not minerals. If not a mineral‚ explain why it is not. MINERAL? YES NO EXPLANATIONS Rain water Quartz Coal Silver Wood Synthetic diamonds Halite Activity 1.2 Luster 1. Examine the luster of the minerals and place the letters that corresponds to the luster exhibited. Quartz _________ Galena _________ Limonite _______ Gypsum ________ Talc ___________ Native copper _________ 2. LAB REPORT
Premium Mineral
around the Game World • Understand what are and how to use variables Practical You have already created a simple game using Game Maker in your last lab. In this lab we will build on our existing knowledge and create the first part of the Bugs Shooter Game. The second part of the game will be done in the next lab session. The Game Idea You may be familiar with a genre of games known as Top-down shooters‚ where you usually control a plane which moves in the bottom of the
Premium Video game genres
well as the density was calculated. The same process was performed to calculate the density of an unknown substance. The third part Section C 5-25% of sodium chloride was prepared by the instructor. For each percent concentration of sodium chloride a 25 mL was prepared. Weighing the graduated cylinder before and after the sodium chloride was transferred the density were calculation. Pre- Laboratory Questions: 1. A metal sphere weighing 15.45 g is added to 21.27 mL of water in a graduated cylinder
Premium Sodium chloride Density Volume
SCHOOL OF BIOLOGICAL SCIENCES BS1005 BIOCHEMISTRY 1 Name: Kingston Tan Lee Kang Matriculation Number: U1440619E Tutorial Group: 8 LAB REPORT Practical 2- Macromolecule Structure Study School of Biological Science‚ NTU BS1005 Practical: Macromolecule Structure Study Results & Discussion of Problems Peptide I – PDB I (β – Sheet) Figure 1. ‘Cartoon view’ of Peptide I showing its secondary structure Figure 1 illustrates the secondary structure of PDB file 1 which shows a β – Sheet. 3 hydrogen bond
Premium Protein Hydrogen bond Oxygen
Separation of a Mixture: Unknown # 12-Green Chemistry 221 with Professor Thomas Quale May 2012 Formal Lab Report Abstract An unknown sample‚ # 12-Green‚ was separated into its individual variable components‚ iron‚ ammonium chloride‚ silicon dioxide‚ and sodium chloride. The techniques used to separate the components of unknown # 12-Green‚ magnetism‚ sublimation‚ extraction‚ and filtration‚ were chosen based on the unique properties of each component. Using these separation techniques‚ each substance
Premium Chemistry Gas Separation process
TDDC17 -‐ Lab 3 Part 2 Q5 P (Meltdown) = 0‚02578 P(Meltdown | Ica weather) = 0.03472 b) Suppose that both warning sensors indicate failure. What is the risk of a meltdown in that case? Compare this result with the risk of a melt-‐down when there is an actual pump failure and water leak. What is the
Premium Conditional probability Trigraph