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5- A chemist is given a nonelectrolyte white powder for analysis. 38.7 g of this substance is dissolved in 100.0 g of water. It is determined that the resulting solution freezes at -4.0°C. Additionally, the elemental composition of the substance is identified and found to be 40.0% C, 6.7% H and 53.3 % O by mass. Find the molecular formula of this unknown white powder using these experimental evidences (Kt of water: 1.86°C/m, C: 12 g/mol, H: 1 g/mol, O: 16 g/mol).

5- A chemist is given a nonelectrolyte white powder for analysis. 38.7 g of this substance is dissolved in 100.0 g of water. It is determined that the resulting solution freezes at -4.0°C. Additionally, the elemental composition of the substance is identified and found to be 40.0% C, 6.7% H and 53.3 % O by mass. Find the molecular formula of this unknown white powder using these experimental evidences (Kt of water: 1.86°C/m, C: 12 g/mol, H: 1 g/mol, O: 16 g/mol).

Chemistry
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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Question 5
AaççĞğH AaççğğHI AAÇÇĞ AaççĞğ Aaçço A Aa - - ay- A - T Normal T Aralık Yok Başlık 1 Başlık 2 Başlı- Paragraf Stiller 5- A chemist is given a nonelectrolyte white powder for analysis. 38.7 g of this substance is dissolved in 100.0 g of water. It is determined that the resulting solution freezes at -4.0°C. Additionally, the elemental composition of the substance is identified and found to be 40.0% C, 6.7% H and 53.3 % O by mass. Find the molecular formula of this unknown white powder using these experimental evidences (Kt of water: 1.86°C/m, C: 12 g/mol, H: 1 g/mol, O: 16 g/mol). 6- The following reaction takes place into a constant-volume flask at 427°C: CCL(g) = C(s) +2 Cl:(g) AH=132 kJ At 427°C, the equilibrium constant for the reaction given above is K. = 1.3×10-. A flask is %3D 三
Transcribed Image Text:AaççĞğH AaççğğHI AAÇÇĞ AaççĞğ Aaçço A Aa - - ay- A - T Normal T Aralık Yok Başlık 1 Başlık 2 Başlı- Paragraf Stiller 5- A chemist is given a nonelectrolyte white powder for analysis. 38.7 g of this substance is dissolved in 100.0 g of water. It is determined that the resulting solution freezes at -4.0°C. Additionally, the elemental composition of the substance is identified and found to be 40.0% C, 6.7% H and 53.3 % O by mass. Find the molecular formula of this unknown white powder using these experimental evidences (Kt of water: 1.86°C/m, C: 12 g/mol, H: 1 g/mol, O: 16 g/mol). 6- The following reaction takes place into a constant-volume flask at 427°C: CCL(g) = C(s) +2 Cl:(g) AH=132 kJ At 427°C, the equilibrium constant for the reaction given above is K. = 1.3×10-. A flask is %3D 三
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