Question

(20%) Chapter 12, Boiling point trends:   Explain the trend in boiling points of the compounds: which...

  1. (20%) Chapter 12, Boiling point trends:   Explain the trend in boiling points of the compounds: which one does not fit the trend, and why?

H2Te

-2 deg.C

H2Se

-41.5 deg.C

H2S

-60.7 deg.C

H2O

+100 deg.C

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Boiling point increses with increasing molecular weight. As move from H2O to H2Te boiling point values have to increses. But here H2O does not fit the trend. The reason for this is formation of Hydrogen bond.

Water form hydrogen bonds. So it gave higher boiling point values the remaining all.

So the increasing boiling point order is as follows:

H2S < H2Se < H2Te < H2O

Hydrogen Bond: The bond between high electronegative atom like O,F or N and hydrogen atom ( which is attached to O,F or N) is called hydrogen bond.

here H2O not fit the trend because of Hydrogen bond.

Add a comment
Know the answer?
Add Answer to:
(20%) Chapter 12, Boiling point trends:   Explain the trend in boiling points of the compounds: which...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 6. Consider the table of boiling points below. a) Identify and explain the reason for the...

    6. Consider the table of boiling points below. a) Identify and explain the reason for the dominant trend. b) Identify the molecule whose boiling point does not follow that trend and explain why it doesn't. Compound Boiling Point H Te -2 °C H Se -41.5 °C HS -60.7 °C HO 100 °C

  • II) Noncovalent Forces – The following questions refer to the chart below which shows the boiling...

    II) Noncovalent Forces – The following questions refer to the chart below which shows the boiling points of specific compounds containing only H-E bonds, where E stands for elements in various periods and groups. 150 a) Explain the steady increase in boiling points in going from Period 3 to Period 5 elements. H20 100 50 HE Boiling point (°C) H2Te 0 SbH3 HI NH3 H2Se -50 H2S b) Explain the sharp decrease in boiling points in going from Period 2...

  • Consider the boiling point trends for simple molecular compounds that contain only X-H bonds (note: there...

    Consider the boiling point trends for simple molecular compounds that contain only X-H bonds (note: there are 2 questions about this graph). +H20 - HF - NH3 - CH4 --HF - HCI - HBr - HI --NH3 - PH3 – AsH3 - SbH +CH - SiH - Gehe - SnH Boiling point (°C) . -175 3 41 Row of non-H atom What does the bp trend from CH - SIH.GOH - SnH, demonstrate about induced-dipole/induced-dipole forces? (if you can't see...

  • write these compounds in order of increasing boiling points 1 Write these compounds in order of...

    write these compounds in order of increasing boiling points 1 Write these compounds in order of increasing boiling points. Identify a mechanistic step which does not occur in the reaction between excess of methylmagnesium iodide and ethyl acetate. (A) сна-маl rof (B) :0: CH-Mg + HO OH 2 3 HO 1 (A) 1 <2<3 (C) 2<3<1 (B) 2<i <3 (D) 3<I<2 2. Which one is the most acidic compound. + CH3-Mg (A) OH (B) (D) (C) (D) OH non 3...

  • 2) Which of the following compounds has the higher boiling point: butane, butanol, butanoic acid, and...

    2) Which of the following compounds has the higher boiling point: butane, butanol, butanoic acid, and methyl ethanoate? Briefly explain why. Batanoic acold Because of molecula weight and long a strong hydrogen bonding 3) From the compounds of previous question, which is more soluble in water? Briefly explain why. 4) Give the name of the carboxylic acid and alcohol used to prepare the ester methyl benzoate - Esterification 5) Write the reaction of acid hydrolysis between methyl ethanoate and water.

  • Chapter Number: 11& 13.4 (20 points) Name: 19) For each of the following compounds, choose its...

    Chapter Number: 11& 13.4 (20 points) Name: 19) For each of the following compounds, choose its molecular shape from the list of shapes. (Shapes can be used more than once.) (1 points) COMPOUNDS SHAPES a) NH3 1. Linear b) H2S 2. Bent c) AICI 3. Trigonal Planar d) CCl4 4. Trigonal Pyramidal e) HCN 5. Tetrahedral

  • Full Name Dis Sec. Day/Time Forces Which of the following series of compounds is listed in...

    Full Name Dis Sec. Day/Time Forces Which of the following series of compounds is listed in serms of insreasing intermolecular forces decreasing vapor pressure, increasing boiling point and freezing point NaCl CCl. Ar A) NaCI> CCl. HOA D) HO>NaCI> Ar > CCL 2 Circle the species having the smallest (Gowest) value of the property listed A) Viscous B) Intermolecular Forces C) Vapor Pressure CCL H,0 D) Freezing Point E) Solubility in WaterCH, Cl CH CH CH CH CH,OH 3. Which...

  • Which of the following are TRUE statements regarding evaporation, boiling, and vapor pressure? Select as many...

    Which of the following are TRUE statements regarding evaporation, boiling, and vapor pressure? Select as many as are applicable however points will be deducted for incorrect answers. Select one or more: The standard boiling point occurs when the vapor pressure of a compound equals 1 bar The rate of evaporation at temperatures below the boiling point is dependent on surface area The vapor pressure at dynamic equilibrium in a closer container does not depend on the amount of liquid, as...

  • Which of the following compounds has the highest boiling point? 34.6°C 78.3°C 100°C 800 760 Normal...

    Which of the following compounds has the highest boiling point? 34.6°C 78.3°C 100°C 800 760 Normal boiling point 600 Vapor pressure (tor) Diethyl ether Water 400 Ethyl alcohol (ethanol) 200 Ethylene glycol 0 20 80 100 40 60 Temperature (°C) Select one: a. NH3 O b. H₂S о с. НСІ O d. H₂O According to the MO theory, which of the following molecules should not exist? Select one: a. Hez b. Hez c. H2 d. All of the above

  • 4 1 Write these compounds in order of increasing boiling points. Identify a mechanistic step which...

    4 1 Write these compounds in order of increasing boiling points. Identify a mechanistic step which does not occur in the reaction between excess of methylmagnesium iodide and ethyl acetate. :0: + CH3 - Mgi (A) HO HO OH no 1 2 3 (A) 1<2<3 (B) (B) 2<l<3 (D) 3<I<2 :0 (C) 2 <3 <1 CH-Mgl. (C) 2. Which one is the most acidic compound. (A) ОН (B) + CH3-Mgl (D) (C) (D) OH Identify one of the steps in...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT