Experiment 5 – Percent Water in a Hydrated Salt Pre-Lab Hints 1. Note definition of deliquescent in the introduction. 2. See side notes for part A‚ as well as part 1 of Technique 15C (pg 27). 3. Mass of water in sample is the mass lost by heating (initial minus final). Water % is 100 times the g of water divided by the initial g of hydrate sample. 4. a. See step A1 in the procedure. b. A hot sample on the balance creates air currents and causes thermal expansion‚ both of which decrease
Premium Water Mass Elementary arithmetic
Evelyn Ramos CHEM LAB 201-003 Professor Ruddock Experiment #4 - Chemical Reactions Performed: 3/6/13 DUE: 3/13/13 Pre Lab Questions: 1. Before you can write a chemical equation‚ what must you know? You have to know what the products and reactants are. 2. What observations might you make that suggest that a chemical reaction has occurred? If a gas is produced or precipitates are formed that indicates chemical reaction. Also‚ if color changes occur or
Free Solubility Chemical substance Chemical reaction
Laboratory 6: Energy Changes in Chemical Reactions Note: Lab reports are to be completed by each student individually and in their own words Observations: (This part is to be completed in class) Part 1: Physical Change- Heat of Solution for Sodium hydroxide (NaOH) 3.2 grams NaOH Result: Temperature of DI water = ____22.8 °C Temperature after addition of NaOH = ______31.8 °C Part 2: Chemical Change- Reaction between acid and base Result: Temperature of HCl = ___21.4 °C Temperature after addition
Premium Thermodynamics Chemical reaction Energy
Axia College Material Appendix L Week Six Lab Report: Metamorphic Rocks Answer the lab questions for this week and summarize the lab experience using this form. Full Name Date Carefully read pages 108-116 of Geoscience Laboratory. Complete this week’s lab by filling in your responses to the questions from Geoscience Laboratory. Select answers are provided for you in red font to assist you with your lab work. Although you are only required to respond to the questions in this worksheet
Premium Chemistry Sedimentary rock Rock
Virtual Chem Lab 6-2 & 6-3 Anonymous CHM/110 June 16‚ 2014 Zamir Deen Virtual Chem Lab 6-2 & 6-3 Ranking Salt Solutions by pH 6-2: Ranking Salt Solutions by pH In this assignment you will be asked to rank aqueous solutions of acids‚ bases‚ and salts in order of increasing pH. This is most easily done by first identifying the strong acids that have the lowest pH‚ the strong bases that have the highest pH‚ and the neutral solutions that have a pH near 7. The weak acids will have a pH between
Premium PH Acid Titration
Chapter 6 Summary – Friends Chapter 6 is all based the strengthening of friendship between the characters of Caitlin and Bill and of Old bill and Billy. In the section Comfort Bill talks about how he hated school and didn’t have any friends. The repetition of the negative quotes in the section emphasises how Billy did not belong in his old environment. “I never talked to girls‚ I hardly talked to anyone. Sure‚ I answered questions from teachers and occasionally I’d talk to some guys I’d know
Premium Interpersonal relationship Friendship Feeling
education provides‚ a successful career can be built on the understanding of medical code and its proper use in submitting clean‚ accurate medical claims. INSR 228A 11/04/13 CHAPTER 5: CHAPTER-SPECIFIC GUIDELINES (ICD-10-CM CHAPTERS 1-10) BOOK PART I THEORY 1. T 2. F 3. F 4. T 5. F 6. F 7. F 8. F 9. A 10. B PART II PRACTICAL 11. D51.0 (Anemia‚ pernicious); G32.0 (Degeneration‚ combined‚ with anemia [pernicious]) 12. D00.01 (Neoplasm
Premium Chronic obstructive pulmonary disease Medicine Lip
Lab 20 Exercises Name ________________________ Date ________________ 1. By default‚ email addressed to system goes to root. How would you also save a copy in /var/logs/systemmail? 2. How would Max store a copy of his email in ~/mbox and send a copy to max@bravo.com? 3. If your firewall allowed only the machine with the IP address 192.168.1.1 to send email outside the network‚ how would you instruct your local copy of sendmail to use this server as a relay? 4. What does dnl stand for
Premium Internet IP address Linux
The Great Gatsby - Chapter 6 In chapter 6 the rumours about Gatsby continue to circulate in New York—a reporter even travels to Gatsby’s mansion hoping to interview him. Nick‚ having learned the truth about Gatsby’s early life sometime before writing his account‚ now interrupts the story to tell us Gatsby’s real history—instead of how it was rumoured to have occurred‚ or as Gatsby had previous claimed that it had occurred‚ but as it really happened. In this chapter we also see Tom Buchanan stopover
Premium Social class F. Scott Fitzgerald The Great Gatsby
Lab 6. Drosophila cross( start) Melat Mebrahtu Lab Instructor: Professor Hicks Principles of Biology Lab II‚ Wednesday 1:00 am- 2:00 pm Abstract The goal of this experiment was to examine the Drophisila fly cross for which the result was seen in two weeks .The Drosophila melanogaster has been a model organism that was experimented in the laboratory. It is a small fruit fly that feeds on and lives on spoiled fruit. It is one of the most valuable organisms in genetics
Premium Allele Gregor Mendel Genetics