Please help answer question 4 and 5 Model 2Complete the third column in the table by calculating the molecular weight for each alkane.Molecular weight(g/mol).16.00AlkaneBoiling point (°C)State at room temp.Methane (CH4)Ethane (C2H«)Propane (C;Hg)Butane (C,H10)-162Gas-89GasGas-42GasPentane36Liquid(C;H12)Нехane (C.H)69Liquid1. Describe the trend in boiling point above.2. Is there a relationship between the boiling point and the molecular weight of thecompounds?3. What do you attribute the trend we see above as in what does this trend really reflect?Is it the molar mass that is important or something else to this trend?4. Predict the physical state (solid, liquid or gas) of the alkane icosane (CzoH42) at roomtemperature? Explain your answer.5. Both neopentane and n-pentane have a CSH12 formula.Lange ares forSmall area forimieractioninteractionCH:CH,Neopentanemolar mass = 72.15 g/molboiling point = 9.5 °Čn-PentaneCHCH,molar mass = 72.15 g/molboiling point = 36.1 °CCH, CH,la) n-Pentane(b) NeopentaneCenyrata zon Pan Pretica , Irea. Which compound has a higher boiling point?b. Which compound has stronger London forces?c. What conclusion can be drawn about straight chain and branched chain hydrocarbonsfrom this example?

Eicosane has the molecular formula of C20H42 and it has a molecular weight of 282.5475 g/mol.…

5. Both neopentane and n-pentane have a CsH12 formula. Lag ae for interactiom Small area for interaction CH, CH, n-Pentane molar mass = 72.15 g/mol boiling point = 36.1 °C Neopentane molar mass = 72.15 gimol boiling point = 9.5 °Č CH Cí, CH, e n-Pentane 0) Neopentane Cvee tae a. Which compound has a higher boiling point? b. Which compound has stronger London forces? c. What conclusion can be drawn about straight chain and branched chain hydrocarbons from this example?

5. Both neopentane and n-pentane have a CsH12 formula. Lag ae for interactiom Small area for interaction CH, CH, n-Pentane molar mass = 72.15 g/mol boiling point = 36.1 °C Neopentane molar mass = 72.15 gimol boiling point = 9.5 °Č CH Cí, CH, e n-Pentane 0) Neopentane Cvee tae a. Which compound has a higher boiling point? b. Which compound has stronger London forces? c. What conclusion can be drawn about straight chain and branched chain hydrocarbons from this example?

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL2: Mass Spectrometry

Section: Chapter Questions

Problem 20CTQ

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