102. Explain the observed trend in the boiling points of the compounds listed. Why is H,O atypical? Compound Boiling Point H2Te -2 °C H2Se -41.5 °C H2S -60.7 °C tw abnod H20 +100 °C

Q: Which one of the following correctly ranks the compounds in order of lowest boiling point to highest…

A: Order of lowest boiling point to highest boiling point:

Q: CH2O(s) = 2.09J/gC CH2O(1) = 4.18J/gC CH2O(g) 1.84J/gC = AHiusion ice = 6.01KJ/mol Atvanorization…

A: Q1 + Q2 + Q3 + Q4 + Q5 = energy required to convert ice to steam. Formula- Q = m x C x ∆T ∆H = Qn…

Q: Predict the relative boiling points of the substances in Figure 9 and rank these boiling points from…

A: The intermolecular force present in alcohols is hydrogen bonding while in the alkanes the…

Q: Which substance has the higher boiling point? Explain.(a) CH3CH2OH or CH3CH2CH3           (b) NO or…

A: Molecular weight is the total weight of the molecule or compound which is given by the total mass…

Q: Which of the following substances would have the lowest vapor pressure at 298K?   A. Acetone…

A:

Q: Ethanol has a normal boiling point of 78.3 C. Why is the normal boiling point higher than methanol…

A: Boiling point of any molecule depends on 2 things ( in the same priority order as they are…

Q: boiling points from the highest to the lowest. [The sign ~means approximately equal.] *       1 - B…

A: In order to predict the order of boiling point we have to consider the major factor which influence…

Q: rrange the following based on increasing boiling points H2Te, H2S, H2Se   a. H2Se < H2S < H2Te…

A: Boiling point increases with increasing the molar mass

Q: Which substance has the higher boiling point? Explain.(a) CH₃CH₂OH or CH₃CH₂CH₃(b) NO or N₂(c) H₂S…

A: The boiling point is contingent on intermolecular forces of attraction. The intermolecular forces…

Q: Which of the following substances would likely have the highest melting point (melt at the highest…

A: We need to identify the compound with maximum melting temperature from the options.

Q: What quantity of heat, in kJ, is required to convert 23.0 g of ethanol (C₂H₅OH) at 23.0°C to a vapor…

A: Given that: mass of ethanol = 23.0 g initial temperature =  23.0°C final temperature = 78.3°C…

Q: The boiling point of acetic acid is usually stated to be 118°C. Is it possible to have acetic acid…

A: The liquid state of any substance is changed to its vapor state, when the atmospheric pressure…

Q: 1.1 Bromine (Br2) has a normal melting point of – 7.2°C and a normal boiling point of 59°C.The…

A: The normal melting point of bromine = – 7.2°C  The normal boiling point of bromine = 59°C The triple…

Q: When the compounds HF, H¿O, NH; and CH, are listed in order of increasing boiling point, which order…

A: BOLING POINT: The specific temperature at which the pressure of the vapor of chemical substance is…

Q: the following list, the substance having the lowest boiling point at 1.00 atm is ____.          (A)…

A: Boiling point depends on the strength of intermolecular forces. The stronger the intermolecular…

Q: Which of the following are correct: Acetone has a normal boiling point of 56 Co while benzene has a…

A: Given : Normal boiling point of acetone = 56 oC And normal boiling point of benzene = 80 oC

Q: The boiling point of acetic acid is usually stated to be 118oC. Is it possible to have acetic acid…

A: Yes, all we have to do lower the air pressure and we can depressed the boking point of any liquid.

Q: Arrange the following compounds in the following order. Explain your arrangement. Br,, CO, H,, CH.…

A: Br2 , CO2, H2 , CH4

Q: What quantity of heat, in kJ, is required to convert 50.0 g of ethanol (C₂H₅OH) at 23.0°C to a vapor…

A: The toatal amount of heat given to any thermodynamical system is conserved, In above problem ,…

Q: what one has the highest boiling point CH4, C4H8,CO2,H20,BF3

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Chloroform, formerly used as an anesthetic and now believed to be a carcinogen, has a heat of…

A:

Q: The following information is given for antimony, Sb , at 1 atm: Boiling point = 1440.0°C   Heat of…

A: SOLUTION Mass of liquid antimony = 44.9 g Heat of fusion = 38.5 cal/g Energy removed = 38.5…

Q: What amount of heat is required to vaporize 199.40 g of ethanol

A: Number of moles = mass/molar mass  ∆Hvap = 43.3 kj/mol  Means 43 kj of heat is required to convert 1…

Q: Consider the substances H2O, KI, H2S, CH4. Which answer has the substances arranged in order of…

A: The boiling point of any substance is defined as the temperature at which the vapour pressure of the…

Q: Arrange the following compounds in order of increasing boiling point. Br HO A C D B.

A:

Q: In an electric freezer, 400 g of water at 18°C is cooled, frozen, and the ice chilled to -5.0 °C. If…

A: Assuming no heat is lost to surroundings  Hence the heat gained by the Freon will be equal to the…

Q: What quantity of heat, in kJ, is required to convert 28.0 g of ethanol (C₂H₅OH) at 23.0°C to a vapor…

A: Concept: The branch of chemistry that deals with the structure, properties and the reaction of the…

Q: From the data below, calculate the total heat (in J) needed to convert 0.322 mol of gaseous ethanol…

A: In the given process, The gaseous ethanol will be cooled from 300°C to boiling point temperature.…

Q: 27) If I had a quantity of this substance at a pressure of 0.75 atm and a temperature of -100⁰ C,…

A: By using this we can solve the given Question .

Q: Which amount of heat in kJ is required to vaporize 146.20g of ethanol C2H5OH.

A: Number of moles = mass/molar mass  Molar mass of ethanol is 46.07 g/mol

Q: 7.1 A normal boiling point of Cd(l) is 1038K. At this temperature △Hvap is 23,900(J/mol). (a) In 2…

A:

Q: Rank the elements or compounds in the table below in decreasing order of their boiling points. That…

A: HgCl2 = 1 H2O2 = 2

Q: The AHp of a certain compound is 25.69 kJ · mol- and its ASan is 55.02 J - mol-.K-I vap What is the…

A: Entropy is the measure of degree of randomness. Enthalpy is the heat released or absorbed during a…

Q: Supnitical iquad NS -64 Tempeatume (C) 31.1 Phase Diagram for Unknown Substance What is the pressure…

A: Given diagram is :  What is the pressure (in atm) at the critical point of this substance = ?…

Q: What quantity of heat, in kJ, is required to convert 27.0 g of ethanol (C₂H₅OH) at 23.0°C to a vapor…

A: Given: Quantity of heat = ? in kJ m = 27.0 g of ethanol (C₂H₅OH) T1 = 23.0°C T2 = 78.3°C  ∆T = T2 -…

Q: Arrange each of the following sets of compounds in order of increasing boiling point temperature:(a)…

A: Following sets of compounds in order of increasing boiling point temperature are given below-

Q: What quantity of heat, in kJ, is required to convert 47.0 g of ethanol (C₂H₅OH) at 23.0°C to a vapor…

A:

Q: Carbon tetrachloride, CCL4, and chloroform, C normal boiling point is 77 °C; chloroform's bc…

A: Boiling point of CCl4 is higher than CHCl3.

Q: The AHvap of a certain compound is 34.13 kJ • mol¬ and its ASvan is 57.86 J· mol¬1 · K-!. What is…

A: Given ΔHvap = 34.13 kJ/mol ΔSvap = 57.86 J/mol-K

Q: Arrange the following substances in order of increasing boiling points C 6H 14, C 4H 10, C 3H 8. C…

A: Arrange the given alkanes in increasing order of boiling?

Q: 20. Consider the substances H,O, KI, H;S, CH4. Which answer has the substances arranged in order of…

A: KI is an ionic compound. H2O and H2S are polar and both have diople-diople interactions. CH4 is a…

Q: What quantity of heat, in kJ, is required to convert 39.0 g of ethanol (C₂H₅OH) at 23.0°C to a vapor…

A: The mass of the ethanol sample is = 39.0 g The initial temperature of the ethanol is = 23.0oC The…

Q: What amount of heat , in kj, is required to vaporized 190.55 g of ethanol (C2H5OH)?(Hvsp=43.3 KJ/mol

A: Weight of ethanol = 190.55 gm ∆Hvap = 43.3 KJ/mole

Q: How many joules of heat are required to heat 24.5 g of ethyl alcohol from the prevailing room…

A: Using the relation Q=mCΔT , heat requred can be calculated.

Q: What quantity of heat, in kJ, is required to convert 12.0 g of ethanol (C₂H₂OH) at 23.0°C to a vapor…

A: Given Data :

Q: how much energy is required to vaporize 125 g of benzene c6h6 at its boiling point 80.1 C

A: Given, Mass of benzene =125 g Boiling point =80.1°C

Q: The AHvap of a certain compound is 42.63 kJ mol- and its AS, is 72.79 J mol-1. K-. What is the…

A: Given Enthalpy of Vaporization (∆Hvap) = 42.63 KJ mol-1  OR 42630 Joule mol-1 Enthalpy of Entropy…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.