Activity 2: Identify the intermolecular forces present among the following species. a. Two Sulfur dioxide (SO2) molecules b. Sodium ion (Na) and formaldehyde (CH;O) Na and c. Two Carbon dioxide (CO2) molecules o=c=0 d. Ammonia (NH3and H;O) H-N-H and H e. Fe" and O2 Fe2 and o-o

Q: What is the enthalpy of formation of water under standard state conditions? (See Appendix |I of your…

A: Enthalpy of formation is change in enthalpy during formation of compound from its constituent…

Q: 1. Explanation of properties of solids, liquids and gas by using the kinetic molecular model.

A: Given :Kinetic molecular  model.  To find : Properties of solid, liquid and gases.  Solution : As we…

Q: A flask containing 43.21 mol of water is heated and the temperature of water increases from 25°C to…

A:

Q: A 0.551 g sample of steam at 106.1 °C is condensed into a container with 4.66 g of water at 15.2 °C.…

A: Thermodynamics deals with the flow of heat and the resulting work in a system. When substances of…

Q: Rank the given compounds in increasing order based on the property. (1-lowest and so on...) 1.…

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Q: 22. The dipole-dipole interactions experienced when H is bonded to N, O, or F are unusually strong.…

A: Correct options are as follows:

Q: There are three sets of sketches below, showing the same pure molecular compound (ammonia, molecular…

A: 2Matter generally exists in three states.These are solid, liquid and gas.The melting point is the…

Q: 7. The lattice energy is defined as the energy required to break one mole of an ionic solid into its…

A:

Q: Fill in the blanks with the appropriate word or phrase.  1. The average kinetic energy of a gas…

A: Following are the filled blanks with appropriate words

Q: Consider mixing 2 of the three compounds to form a solution. i. Which of the compounds, A – C, is…

A: All three compounds are volatile, which means the pure compounds A, B and C have weak intermolecular…

Q: 2)What is the definition of boiling point?  How is the boiling point affect by atmospheric pressure…

A: The temperature of a liquid at which the vapour pressure of liquid become equalt to the pressure…

Q: Calculate the energy (in kJ) required to heat 0.491 grams of water from -46.0 ℃ to 142.5 ℃.

A:

Q: 12) What do the samples of CO,(g) and N.(g) have in common? 1) Mass and the number of molecules 2)…

A: Solution :    12)  Kinetic Energy :      Any object which shows movement has its own kinetic energy.…

Q: Choose the substance with the highest boiling point and explain why you choose it -NaCl -H2O…

A: Vapor pressure of the liquid and vapor in the atmosphere will be same at certain temperature and it…

Q: heat (in joules

A:

Q: 2. Substances that contain hydrogen carbonate ions (HCO3") always form soluble compounds. This…

A: Enegy needed to break apart ionic solid is less than other substance.

Q: Substance A has the following properties.mp at 1 atm:-20.°C ;bp at 1 atm:85°C ;H(fus)180. J/g…

A: The time in minutes required to heat the sample to its melting point and the time required to melt…

Q: How much energy is needed to change the temperature of 39 g of water from 10.0 °C to 95.0 °C?

A: Since water remains in liquid form from 10°C to 95°C . Heat required, Q = mcp(l) ∆T ,where m is the…

Q: Which statement is true regarding the thermochemical equation    A +  B  + KJ à  AB A. The reaction…

A: 7. Given reaction is,  A + B + kJ --> AB  We need to find if this reaction is exothermic or…

Q: Liquid butane is used in cigarette lighters. The boiling point of butane at 1 atm pressure is -1.0…

A:

Q: observation The enthalpy of vaporization of Substance E is smaller than that of Substance F. At 1…

A: Depends on the capability of vaporization

Q: How much heat will 325.0 g H2O at 15.0 oC absorb if the temperature in increased to 90.0 oC? The…

A: Solution

Q: ion when

A: The intermolecular force of interaction present between two-atom or in the molecule which holds…

Q: How much heat (in kilojoules) is needed to warm 2.0 grams of water from -10 to 40? Here are some…

A:

Q: Connect each of the following substances (in the left column) to the type of forces that are likely…

A: Intermolecular Forces -  These are the forces that act as a binding force between two molecules.…

Q: Why does the structure of molecules behaves as an independent unit?

A: The structure of molecule behaves as an independent unit because they contain two or more atoms that…

Q: Indicate the strongest attraction between the two molecules 1. between two nonpolar molecules 2.…

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Q: Here are the molecular structures of CBR4 and CH3BR. Use the images and the electronegativity chart…

A: Intermolecular forces are those interatomic attractions which holds the molecule together.

Q: CH4 with itself a. illustrate the lewis dot structure b. polar or nonpolar? c. what is the…

A: We have to predict Lewis structure, polarity , intermolecular forces.

Q: How much heat is absorbed when 34.5 g of H2O (MM = 18.02 g/mol) at -7.00°C is heated to 16.0°C?…

A: Correct option: 14.3 kJ

Q: What type of forces are overcome when gaseous water is converted to hydrogen gas and oxygen gas? A.…

A: Intramolecular forces : The forces that exist within the molecule. Intermolecular forces : The…

Q: gen Peroxide (H,O,)

A: We will explain about force of attraction in H2O2

Q: thermochemical data for Molar mass: 92.14 g/mol AH fus = 6.64 kJ/mol AS fus = 37.2 J/mol-K Molar…

A: A question based on chemical thermodynamics that is to be accomplished.

Q: Calculate the heat released when 2.280 L O2 with a density of 1.11 g/L at 25°C reacts with an excesS…

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Q: Would the following processes be exothermic or endothermic? a. solid → liquid b. gas liquid c.…

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Q: Write the Lewis structure(s), predict the molecular/ion shape (eg. linear) , and the types of…

A:

Q: How much energy is absorbed or released when 2.30 moles of water (4.184 J/g°C) cools from its normal…

A: Given: Moles of water = 2.30 moles. Specific heat capacity of water = 4.184 J/g C∘. We have to find…

Q: 5. LiF

A: The intermolecular interactions are the intermolecular forces which mediate interaction between…

Q: A 100.0-g bar of bismuth is heated from 25 °C to 50 °C during which it absorbs 308 J of heat. Assume…

A:

Q: Which of the following processes would absorb the most amount of heat energy (for 1 g of H20)? a)…

A: Fusion: It is process of conversion of solid into liquid state Condensation: It is process of…

Q: 88.why does evaporation of water from a surface cause cooling of the surface? evaporation causes…

A: The solution is given below -

Q: Calculate the energy (in kJ) required to heat 0.491 grams of water from -46.0 °C to 142.5 °C.…

A:

Q: 9. If 294 J of heat were transferred to a 10.0 g sample of silver at 25 oC, what is the final…

A:

Q: What is the quantity of heat (in kJ) associated with cooling 179.9 g of water from 25.60 °C to ice…

A:

Q: Compound Melting point (C) AH (kJ/mol) Boiling point (C) AH,ap (kJ/mol) HF -83.11 4.577 19.54 25.18…

A: Given that, for HCl the data table is Compound Melting point (K) ∆Hfus (kJ/mol) Boiling point (K)…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.