
REPORT SHEET LAB 14 Solutions, Electrolytes, and Concentration A. Polarity of Solutes and Solvents Solute 1....
Solute KMnO4 Soluble/Not Soluble in Water (A.1) Cyclohexane (A.2) Identify the Solute as Polar or Nonpolar (A.3) Sucrose Vegetable oil NaCl is soluble in water, but I, is not. Explain. State the general solubility rule concerning the polarities of a solute and solvent. Calculations B.4 Solubility is expressed as the number of grams of solute in 100 mL of water. Because you used a sample of 5.0 mL of water, the mass of the solute you measured out and the...
these are the unknowns
3. Consider "Like dissolves Like" Polar solutes dissolve in and solutes dissolve in nonpolar solvents. Compounds_ and ___ have bonds and are soluble in which is polar. Compound is not soluble in water but is soluble in nonpolar solvent called _so it has _bonds. Compound is soluble in water but does not electricity so it must have bonds joining some parts that are (polar, nonpolar) 4. Based on conductivity, a) Which of the unknowns are electrolytes?...
SOLUTIONS 22. Non-polar compounds are soluble in ionic compounds b) electrolytes c) polar solvents d) non-polar solvents 23. Which of the following would increase the solubility of gaseous O2 in water? (there is more than correct answer, mark them all!) Decreasing the temperature of the solution Increasing the temperature of the solution Decreasing the pressure of the solution Increasing the pressure of the solution 24. Which of the following describes an unsaturated solution? A solution that has less than the...
1. Solubility in WATER Check solubility of four solutes in water (H2O). For each solute record how many teaspoons dissolved in 1/2 cup of water. NaCl: Start out with 4 small glasses (cups) and add 1/2 cup of water to each. Put 1/2 level teaspoon (tsp) of salt (NaCl) into the first cup and stir. If it dissolves within 1 minute; add another 1/2 tsp of salt and stir. Count the number of 1/2 tsps you are adding. Repeat until...
these are unknowns A,B,C,D
Un altach to your Final Report Based on your experimental results and your knowledge of ionic and covalent classify each unknown as covalent or ionic. ledge of ionic and covalent bonds, D: 2. a) Which one of your unknowns had the lowest melting point? b) Consider the following substances: CO. Hz and LiF. Calculate the electronegativity difference (AEN) using the table in this Handout. (This table is also posted on Carmen under General Information). Rank from...
51 Report Sheet Name Rear Chem 121 Lab Partners Procedure A (lonic Solutions) Conductivity results: Strong. Weak, or Non- Many, few or no ions electrolyte? produced in water? H2O weak we few Glycerol Ascorbic acid NaCI HCI St on g For the strong electrolytes, write chemical reactions that communicate what the compounds form when they dissolve in water Procedure B (lonic Reactions) Observations before adding Na:CO Compound in test tube Solubility before adding Na CO, Solubility after adding NasCO, (SOL...
Electrolytes. Concentration and Dilution of Solutions Date PRE-LAB ASSIGNMENT: 1. For each of the following, identify the solute, solvent, and solution solute solvent solution a) 10% by mass KNO3(aq) b) a glass of wine containing 12% by volume ethanol in an aqueous solution 2. In this experiment, you will use/calculate the concentration of solutions using a variety of concentration units. Refer back to chapter 9 in your textbook to find the definition or equation for each concentration unit. Write an...
please help me answer question 1 to 3,
thank you
Chapter 9, Solutions, Review & Extra Credit. 2 Points for each XC correct answer; 6 points total, max. Partial Credit given. Suggestions...work in teams [it will improve the learning experience] 1. Solutions-A solution forms when a solute (the smaller quantity) dissolves in a solvent (the larger quantity). In a solution, the particles of solute are evenly distributed in the solvent. A solute may be a gas, liquid or solid. A...
This was a analysis questioned asked on my lab report ? I need help, I included part C on there and the whole procedure of how it works. Will you please help me how to determine the concentration in a concentration % ? Heres the question: 4. For the 10 mixtures that were created in Part C: Classification of Mixtures procedure, determine the concentration in a concentration % (m/m, v/v, or m/v). Include a unit with your value and a...