Date Submitted: August 6‚ 2012 Experiment No. 4 Solubility Equilibrium- Common Ion Effect INTRODUCTION: The common ion effect is another example of Le Châtelier ’s Principle in action.The common ion effect tells us that the solubility of an ionic compound is decreased by the addition to the solution of another ionic compound that contains one of the ions involved in the solution It is also responsible for the reduction in solubility of an ionic precipitate when a soluble compound
Premium Ammonia Chemistry Acid
12 Review of Solubility Equilibrium 1. Identify each of the following as ionic or molecular substance: a. NaCl(aq) ________________________________ b. CH3COOH(aq) ___________________________ c. CCl4(l) _________________________________ d. HNO3(aq) ______________________________ e. C2H6(l) ________________________________ 2. A good way to test a liquid to see if it contains ions is to : 3. Define a saturated solution. 4. Define an unsaturated solution. 5. What is meant by solubility? 6. On the
Premium Concentration Solutions Chemistry
nonvolatile substances by boiling the mixture to alter the phase of the volatile substance. The researchers used the simple distillation set up to conduct the experiment. 25 ml of The Bar Vodka was used and 7 ml of distillate was collected before a temperature of 95 degrees Celsius was reached. Collected distillate was then subjected to a flammability test to confirm ethanol content. The percent ethanol was computed to be 24%. Introduction Distillation is a method of separation for homogenous mixtures
Premium Distillation Boiling point Ethanol
Word: Fire and Flames(part 1) “5:22- But I say unto you‚ That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother‚ Raca‚ shall be in danger of the council: but whosoever shall say‚ Thou fool‚ shall be in danger of hell fire.” There is a known relation between sin and fire. Throughout the New Testament‚ there have been instances where the “hells of fire” have been mentioned. It has been said that fire is an expression of
Premium The Scarlet Letter Hester Prynne Nathaniel Hawthorne
Measuring the Solubility Product of Ca(OH)2 Purpose: The purpose of this investigation is to find the solubility product (Ksp) of Ca(OH)2 by titrating the hydrochloric acid with calcium hydroxide and using their entities to find the concentration of Ca2+ and OH- ions. Materials: Refer to lab sheet “Measuring the Solubility of Ca(OH)2” (handout) Method (Procedure): Refer to lab sheet “Measuring the Solubility of Ca(OH)2” (handout) Observations Trial 1 Trial 2 Initial burette reading 0mL 17.75mL
Premium Chemistry Solution Solubility
that age because women under the age of 35 bear the greatest total number of children. New fetal chromosome sampling techniques are available‚ and the new procedures may be safer than amniocentesis. When the standard practice was established‚ the only test available was amniocentesis. Write your opinion as to whether the standard practice should be changed to have pre-natal chromosome testing done on all pregnant women. In your statement‚ include information on possible consequences if the majority of
Free Pregnancy Childbirth Obstetrics
What is the purpose of a conclusion? The purpose of conclusion is to conclude and analyze what you have already presented in your project and presentation. The purpose also is approving the problem statement and finishing the project with written conclusion about the subject. What should you include and what should you not include? It should include problem statement approval‚ information what has already been presented in the project and whole work problem statement analyze
Premium Citation 1920
Coming to Conclusions The conclusion of an essay is a key factor of the overall effectiveness of an essay. Often seen as a brief summary of the paper‚ the conclusion frequently revisits the thesis of the paper‚ sometimes repeating lines or words from the introduction verbatim. This almost textbook-like format can be effective but is by no means the only option there is when a writer concludes an essay. In fact‚ the title of “the conclusion” can be quite misleading. Many types of conclusions do not
Premium Writing Conclusion The Reader
Purpose/Objective The purpose of this experiment is to identify the periodic trends in the solubility of the alkaline earth metals and compare the results to that of lead Materials 1. Pencil 2. Lab notebook 3. 5 small test tubes 4. Droppers Chemicals 1. 0.2 M Mg(NO3)2 2. 0.2 M Ca(NO3)2 3. 0.2 M Sr(NO3)2 4. 0.2 M Ba(NO3)2 5. 0.2 M Pb(NO3)2 6. 1 M NaOH 7. 0.2 M NaBr 8. 0.2 M NaI 9. 0.2 M Na2SO4 10. 0.1 M Na2CO3 11. 0.2 M Na2C2O4 12. 1 M NaCl Data and Results Mg(NO3)2
Premium Periodic table Chemical element Chemistry
HINTS FOR WRITING A CONCLUSION Hint #1 Conclusion Words - Sometimes “conclusion” words like these will help you write the conclusion of an essay. Most of the time‚ using the word or phrase in the middle of a sentence is better than making it the first word of the conclusion. in fact in conclusion for these reasons as a result of in effect Hint #2 altogether indeed surely clearly to sum up overall truly all in all due to obviously definitely ultimately thus in effect consequently Four Strategies
Premium Word Writing Sentence