Icted Sample A Šample B Sample C Sample D Observations Sample E Sample F white Crstal white Fazzy Whife custallewnide (Color and appearance) Blue powda crstalClear State at Room Temperature ssold Solid sold Solid solid liquid Solubility in water Yes yes Yes Ne yes y es Color of Solution Clear clear blue clear Clear Conductivity Yes No Yes yes yes N9 Analyze: 1) Can a substance be identified as molecular or ionic based on its state at room temperature? Explain. 2) Can a substance be identified as molecular or ionic based on its solubility? Explain. 3) Can a substance be identified as molecular or ionic based on color? Explain. 4) Can a substance be identified as molecular or ionic based on conductivity of a solution? 5) What was the purpose of measuring the conductivity of distilled water before measuring the conductivity of the different solutions?

Icted Sample A Šample B Sample C Sample D Observations Sample E Sample F white Crstal white Fazzy Whife custallewnide (Color and appearance) Blue powda crstalClear State at Room Temperature ssold Solid sold Solid solid liquid Solubility in water Yes yes Yes Ne yes y es Color of Solution Clear clear blue clear Clear Conductivity Yes No Yes yes yes N9 Analyze: 1) Can a substance be identified as molecular or ionic based on its state at room temperature? Explain. 2) Can a substance be identified as molecular or ionic based on its solubility? Explain. 3) Can a substance be identified as molecular or ionic based on color? Explain. 4) Can a substance be identified as molecular or ionic based on conductivity of a solution? 5) What was the purpose of measuring the conductivity of distilled water before measuring the conductivity of the different solutions?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Assignment/takeCovalentActivity.do?locator=assignment-take Submit Answer $ R F www An aqueous solution of ammonium sulfide, (NH4)2S, contains 0.784 grams of ammonium sulfide and 17.8 grams of water. The percentage by mass of ammonium sulfide in the solution is V 20 % 5 Retry Entire Group 9 more group attempts remaining PA FS T G Cengage Learning Cengage Technical Support B [Review Topics] [References] Use the References to access important values if needed for this question. 6 MacBook Air F6 " Y H & 7 N 44 U J 4 8 M Dil FB 1 * K ( 9 %. VS OWLV2 X DD FO O ) O L command A P ? V Chapter n 334) option x Previous + 1: (1 [ ? 1 OWLV2X + S 1 Next> Relaunch to update Save and Exit } delete
How many molecules of silicon tetrahydride are present in 3.82 grams of the substance? to the nearest thousandths
25 Questions Choose BEST answer from drop-down menu DEC 15 Choose the statement below which best describes electrolytes. a) Electrolytes are compounds which change color when the pH changes. b) Electrolytes are compounds that have water as part of their formula. c) Electrolytes are compounds which maintain the pH of a solution. d) Electrolytes are compounds whose solutions conduct electric current. Choose Post Attendee - Zoom Choose BEST answer from drop-down menu A solid is dissolved in water and a properly functioning conductivity apparatus is dipped into the solution. The light turns on. What can you conclude about the solid? a) The solid does not produce any ions in solution and is classified as a non-electrolyte. b) The solid does not produce any ions in solution and is classified as an electrolyte. c) The solid produces ions in solution and is classified as a non-electrolyte. d) The solid produces ions in solution and is classified as an electrolyte. Choose Choose BEST answer…
Part B: Formula weight of the anhydrous compound: 224 g/mol No need to show sample calcs for part B as they should be very similar.to part A Trial 1 Trial 2 Trial 3 Mass dish, g 46.2760 41.27861 46.2760 Mass dish + hydrate, g 46.7950 41.7792 46.7980 Mass dish + anhydrous, g 46.6160 46.6040 41.6041 0:5229 0.519g O.5199 0.340g 0.32889 0:326 9 0.182g o.1919 0.010 mol oioll mol 0.5019 Mass hydrate, g Mass anhydrous, g O.1759 Mass water, g O. olo mo) Mol water O.002 mol Oi00) mol 0.001 mol Mol anhydrous O, DO Molar ratio of water to 1:5 1:11 ionic compound (report to 3 sig figs) Average molar ratio (report to 3 sig figs) 8.67 Average %RSD (report to 3 sig figs) 1 Oops. The student must have broken their evaporating dish and had to get a new one.
a. What is the mass percent of NaCl if 6 grams of NaCl dissolved in 123 grams of solution? b. What is the mass percent of MgCl2 if 10.0 grams of MgCl2 dissolved in 25.0 grams of water?
a. Rubidum chloride, RbCl, and sulfuric acid, H₂SO4 Rule 4: an exception to the rule for sulfates; RbCl(aq) + H₂SO4 (aq) → Rb₂SO4(s) + HCl(aq) Rule 4: an exception to the rule for sulfates; 2RbCl(aq) + H₂SO4 (aq) → Rb₂SO4 (8) + 2HCl(aq) Rule 4: an exception to the rule for sulfates; 2RbCl(aq) + H₂SO4 (aq) → Rb2SO4 (aq) + 2HCl(aq) O No precipitate: both Rb₂SO4 and HCI are soluble RbCl(aq) + H₂SO4 (aq) → no precipitate b. Potassium carbonate, K₂CO3, and barium chloride, BaCl₂ O Rule 6: Most carbonate salts are only slightly soluble; K₂CO3(aq) + BaCl₂ (aq) → BaCO3(s) + 2KCl(aq) O Rule 6: exeption to rule for carbonates; 2K₂CO3(aq) + BaCl₂ (aq) → BaCO3(s) + 2KCl(aq) O Rule 6: Most carbonate salts are only slightly soluble; K₂CO3(aq) + BaCl₂ (aq) → BaCO3(aq) + 2KCl(aq) O Rule 6: Most carbonate salts are only slightly soluble; K₂CO3(aq) + BaCl2 (aq) → BaCO3 (8) + KCl(aq) c. Sodium sulfate, Na2SO4, and barium nitrate, Ba(NO3)2 O Rule 4: an exception to the rule for sulfates; Na₂SO4 (aq) +…
9:06am ructions t to click Submit when completed! Question 17 Determine the molarity of a solution formed by dissolving 861 g of Mgl2 in enough water to yield 474 mL of solution. * Previous No new data to save. Last checked at 9:21am le Drive MacBook Air 80 888 esc F1 F2 F4 F5 F6 F7 @ 2$ 4 & 6. 7 8. Q W E R. T Y © 2N
Mass of evaporating dish 69.148 Mass of evaporating dish and KCl solution 77.885 Mass of KCl solution 8.737 Mass of evaporating dish and Kcl residue 71.125 Mass of Kcl residue 1.977 Find the mass of water of evaporated Percent Kcl (by mass) in solution Volume of KCl solution (density of KCl solution is 1.12 g/mL) Moles of KCl residue Molarity of solution
mss percent 1.5 moles of KOH+309 moles of H20
Hi I just need to make a bar graph fr my data.
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