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Q22. A solution is prepared by mixing 25.0 g of naphthalene (C₁0Hs) with 0.750 L of liquid CS2 (density = 1.263 g/mL). What is the concentration of naphthalene in parts per million (ppm)? a) 7.34×10¹ ppm d) 2.96x10¹ ppm b) 5.01x10¹ ppm e) 4.62×10¹ ppm c) 2.57×10¹ ppm

Q22. A solution is prepared by mixing 25.0 g of naphthalene (C₁0Hs) with 0.750 L of liquid CS2 (density = 1.263 g/mL). What is the concentration of naphthalene in parts per million (ppm)? a) 7.34×10¹ ppm d) 2.96x10¹ ppm b) 5.01x10¹ ppm e) 4.62×10¹ ppm c) 2.57×10¹ ppm

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Q22. A solution is prepared by mixing 25.0 g of naphthalene (C₁0Hs) with 0.750 L of liquid CS2 (density = 1.263 g/mL). What is the concentration of naphthalene in parts per million (ppm)? a) 7.34×10¹ ppm d) 2.96x10¹ ppm b) 5.01x10¹ ppm e) 4.62×10¹ ppm c) 2.57x10¹ ppm Q23. A 10.00 g of an organic compound is dissolved in 50.00 g of benzene (k = 6.940 °C/m). The freezing point of the solution is 1.280 °C below that of pure benzene. What is the molar mass of the compound? a) 1084 g/mol d) 3253 g/mol b) 2169 g/mol e) 776.5 g/mol c) 1627 g/mol
Transcribed Image Text:Q22. A solution is prepared by mixing 25.0 g of naphthalene (C₁0Hs) with 0.750 L of liquid CS2 (density = 1.263 g/mL). What is the concentration of naphthalene in parts per million (ppm)? a) 7.34×10¹ ppm d) 2.96x10¹ ppm b) 5.01x10¹ ppm e) 4.62×10¹ ppm c) 2.57x10¹ ppm Q23. A 10.00 g of an organic compound is dissolved in 50.00 g of benzene (k = 6.940 °C/m). The freezing point of the solution is 1.280 °C below that of pure benzene. What is the molar mass of the compound? a) 1084 g/mol d) 3253 g/mol b) 2169 g/mol e) 776.5 g/mol c) 1627 g/mol
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