1) Strong electrolytes are the one's having more number of free ions means which are good conductor of electricity or whose conductivity is more. ex- HCl is strongest electrolyte.Weak electrolyte are the one's having less number of free ions means which are bad conductor of electricity or whose conductivity is less. ex- distilled water or NH3 is week electrolyte.
2) More the concentration means more conductivity value.
a)HCl (concentration=0.10 M) conductivity = 52.19
b) HCl (concentration= 0.05 M) conductivity = 19.13
So it's clear from above data that concentration in (a) is more and conductivity is also more.
3) More the ion mobility, more the conductivity because ion mobility means flow of ions in solution which is responsible for conductivity.
4) Typically tap water contains Na, K, Ca, Mg, Cl ionsand any number of other ionic species floating on it means more number of ions in tap water that's why tap water conductivity is more then distilled water.
STUDENT INFO Name: Date: Course/Section: Results EXPERIMENT3 Electrolytes and conductivity Results Units Conduct...
Conductivity of Solutions For Che 2A at RCC Introduction Electrolytes are compounds which conduct electricity when dissolved in water. Strong electrolytes consist of ionic compounds which dissociate completely when dissolved in water, AND molecular compounds which completely ionize when dissolved in water. The reactions below illustrate the dissociation reaction of strong electrolytes: Na (aq) + Cl(aq) но NaCl(s) H30 CaBra(s) HO HCl(e) Ca(aq) + 2Br (aa) H*(aq) + C'(aq) Conductivity is a measure of the ability of water to pass...
t in the orams ts. Conductivity Chem 113 Reading Assignment 1. Read sections 8.2-8.3 in your lecture text. 2. Review Sample Exercise 8.4 on pages 326-327 of your lecture text. Introduction Properties of Solutions: Electrolytes and Non-Electrolytes In this experiment, you will discover some properties of strong electrolytes, weak electrolytes, and non- electrolytes by observing the behavior of these substances in aqueous solutions. You will determine these properties using a conductivity Probe. When the probe is placed in a solution...
Laboratory Ionization & Classification of Acids, Bases and Salts DATE INSTRUCTOR: SECTION Complete the table for each ofthe substances tested by the instructor. Mark "SE" for strong electrolyte, "WE" for weak electrolyte and "NE" for non-electrolyte. PART A Observations (Intensity of Type of Particles Substance light) & Type of Electrolyte ons, Molecules, both (SE, WWE, NE) Distilled H2O Tap Ho 0.5 M C12H220,1 0.2 M KCI Concentrated acetic acid 0.2 M aceitc acid 0.1 M HCl 0.2 M NH,OH 0.1...
List of Electrolytes: NaCl, H3PO4, HC2H3O2(also written as CH3COOH), H3BO3, C2H6O2, CaCl2, CH3OH, HCl, and AlCl3, Tap Water and DI Water 3. a) What can be concluded about how your acids are classified (are they strong, weak, or non-electrolytes?) b) Write a balanced equation for the dissociation of each of the acids, as was done for the ionic compounds. Here assume complete dissociation, disregarding the conductivity data for now. (HINT: Remember polyatomic ions! There should not be more than two...
Exp : Properties of Solutions Roll No. Name: Section: Date:ALE (B Conductivity of Aqueous Solutions of Electrolytes and Nonelectrolytes Sample tested Observation (when tested with the LED Indicator) Did the sample conduct clectricity? (Write 'Yes' or 'No') Nature of the substance (Check one choice) o electrolyte Deionized water nonelectrolyte Answer question 1 in the post- lab. 1. Tap water o electrolyte 2. NaCl (IM) o o nonelectrolyte electrolyte 3. NaOH (IM) o o nonelectrolyte electrolyte 4. Ethanol (IM) O nonelectrolyte...
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...
36) Which one of the following is not a strong acid? (or a weak electrolyte?) a) HNO )HCI HI )HF e) HCIO Answer: 37) The is the conjugate species that remains after an acid donates a proton is called its conjugate base. What base of the hydronium ion, HO? B)HO C)HO D)H E HO'has no conjugate base. Answer: acid-base pair? 38) For the reaction shown below, which of the following is a conjugate acid A)CHsN, H:0 B) CsH,N, CsH,NH' C)...
i want answer to all questions please Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
21. The titration of 25.0 ml. of an unknown concentration HSO, solution requires 83.6 ml of 0.12 M LIOH solution. What is the molarity of the unknown HSO, solution (in MJ? (Write the balanced reaction first) A. 0.20 M B. 0.40 M C. 0.10 M D. 0.36 M E. 0.25 M 22. Complete and balance the following acid-base reaction. What volume of 0.200 M HCI is required for the complete reaction of 1.00 g of Ca(OH): (FW - 74.10g/mol? Ca(OH)(s)...
please help!! calculate pH of solutions on second page a-c!! 1. (4 points) A buffer solution is created with C;H,NH, and 0.012 M C;HsNH2. The K, for C,H,NH2 is 4.7 х 104. What is the concentration of C,HNH, in the buffer solution that has a pH of 11.50? а. What is the concentration of the buffer solution if 0.0011 M HC is added to the buffer in part a.? b. Why is the buffer a basic solution? Could this weak...