If you place 10.0 L of heptane (C7H16) in a sealed room that is 5.25 m long, 2 m wide, and 2.75 m high, will all the heptane evaporate? If some liquid remains, how much will there be? The vapor pressure of heptane is 13.9 torr at 25 °C, and the density of the liquid at this temperature is 0.684 g/mL. Treat the room dimensions as exact numbers.

Q: For a compound the ΔHofus is 11.7 kJ/mol and the ΔSofus is 38.9 J/mol∙K.  What is the melting point…

A: Given that ,  Standard enthalpy of fusion, ΔHofus = 11.7 kJ/mol = 11.7×103 J/mol  Standard entropy…

Q: What is the boiling point of the automobile radiator fluid prepared by mixing 1.02  L of ethylene…

A:

Q: accurate about the two substances? Substance Melting Point Solubility/ 100 g H₂O Conductivity High,…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Is limestone (CaCO3) water-soluble or insoluble? Explain why using the properties of its ions and…

A: We have been asked limestone is soluble or insoluble in water.We also have been asked to explain…

Q: Assume that 100 g of LiCl is dissolved in 100 g of water at 100 °C and the solution is allowed to…

A: From the given graphical representation (solubility vs temperature), it is found that the solubility…

Q: If 180 g of KNO3 is dissolved in 300 g of water at the same temperature, would the solution be…

A:

Q: The vapor pressure of benzene, C6H6, is 73.03 mmHg at 25.0 °C. How many grams of testosterone…

A: In this question, we want to calculate the mass of the testosterone in grams. How we can calculate,…

Q: If 7.27 grams of sucrose, C12H22O11, are dissolved in 35.2 grams of water, what will be the boiling…

A: We know that,     From elevation of BP

Q: Establish the total vapor pressure (in torr) over a solution containing 100 g of heptane and 456.92…

A: Given: Mass of heptane i.e. C7H16 = 100 g. Mass of octane i.e. C8H18 = 456.92 g. Vapor pressure of…

Q: Is dehydration/ hydration of CoCl2 a chemical or physical change? and why?

A: In a physical process, molecules of a substance do not lose identity and the structure of molecules…

Q: If a student wants to make 225.0 mL of a 17.65M stock solution of ZnCl 2, how many grams of solid,…

A:

Q: Which of the following elements will have the greatest solid solubility in copper? Atom Crystal…

A: Solubility is defined as ability of a solid, liquid, or gaseous  substance to dissolve in solvent to…

Q: A sample of sulfur weighing 0.210 g was dissolved in 17.8 g of carbon disulfide, CS2 (Kb = 2.43…

A:

Q: explain why there is a differnce in the conductivity of tap water compared to distilled waterx

A: We use distilled water for reactions and tap water for cleaning. The reason we use distilled water…

Q: 22. Calculate the daily water requirement for a healthy adult weighing 165 lb. who is 5'10" tall.

A: The objective of this question is to calculate the daily water requirement for a healthy adult. The…

Q: If the partial pressure of O2 is 38.mmHg , the mass of O2(in mg) that can dissolve in 1.00L water at…

A: Given: Pressure = 38 mm Hg Convert mm Hg into atm as follows. Volume = 1.00 L Temperature = 25…

Q: 3. How many grams of sucrose must be added to 350 g of water to lower the vapor pressure by 1.4 mm…

A: Relative lowering of vapor pressure is given by: Relative lowering of vapour pressure = x2…

Q: Decaffeinated coffee is produced by extracting the caffeine from coffee with a solvent. Initially…

A: CH2Cl2 solvent was used for extracting caffeine from coffee.

Q: 1.55 g potassium nitrate is added to a calorimeter containing 100.0 mL. water at 22.50 oC.  The…

A: Given: 1.55 g potassium nitrate is added to a calorimeter containing 100.0 mL water at 22.50 oC.…

Q: Acetonitrile, CH3CN, has a vapor pressure of 88.8 torr at 25.0 ̊C. If 9.22 mL of liquid acetonitrile…

A: Here we have to determine ratio of mass of CH3CN in vapour phase to mass of CH3CN in liquid phase at…

Q: The vapor pr is glucose. Calculate the g/mol), are d water = H2C %3D VP(solution)

A: Given that: Vapor pressure of Water = 23.75 mm Hg Mass of Glucose = 6.562 g Molecular weight of…

Q: At 20.0 °C, the vapor pressure of cyclohexane, a nonpolar hydrocarbon, is 66.9 torr and that of…

A:

Q: Calculate the vapor pressure of a solution made by dissolving 11.1 g Ca(OH)2 in 1 102 g of water at…

A: mass of Ca(OH)2 = 11.1 gmolar mass of Ca(OH)2 = 74.09 g/molmass of water = 100 gmolar mass of water…

Q: Complete the following partial ICE tables.                (b) 4NH3 (?) + 3O2(?)+⇌ 2N2 (?)+ 6H2O (?)…

A:

Q: What is the vapor pressure of an equal molar mixture of acetone (Pvap = 285 mmHg @ 30 °C) and ethyl…

A: Given, The vapor pressure of an equal molar mixture of acetone (Pvap = 285 mmHg at 30 °C) and ethyl…

Q: What is the concentration of cyclopropane (in units of grams per liter) dissolved in water at 25° C,…

A: Given partial pressure of Cyclopropane is:Since, 1 atm= 760 mmHg, therefore

Q: A polymer sample of 4.1 g was dissolved in enough dichloromethane to form 0.100 L of solution. The…

A: The osmotic pressure is, π = iMRT Where, π is the osmotic pressure i is the van’t Hoff factor M is…

Q: True or false: These elements are completely soluble in one another Element Atomic Radius Crystal…

A: Given: electronegativity : Cr : 1.6                                  Zn : 1.6 valence : Cr = +3…

Q: seawater sample contains 2.5% NaClNaCl (MW=58.44 g/mol) by mass. Calculate the normal boiling point…

A:

Q: Liquids that readily evaporate are classified as volatile liquids. Such liquids have measurable…

A: It has been mentioned that volatile liquids are those which are evaporated very easily. Their vapor…

Q: Calculate the expected change in temperature given the following data: 7.5 g of NH4NO3 dissolved in…

A:

Q: expected to have decreased solubility in water as temperature increases?     CO2     MgSO4…

A: CO2 is the gas when temperature increase it will vaporise from water so Solubility decrese And do…

Q: 2.13 M solution of NiCl2 has a volume of 1 L. What will the concentration of the solution be when…

A: Molarity of NiCl2 = 2.13 M Volume of solution = 1 L

Q: For the environmental science majors and others interested - how does temperature affect solubility…

A: For the environmental science majors and others interested - how does temperature affect solubility…

Q: At ordinary temperatures, water is a poor solvent for or-ganic substances. But at high pressure and…

A: The vapour pressures ( P1 and P2) of a liquid measured at temperatures ( T1 and T2) are related to…

Q: Which solid displays the greatest solubility in water at 80 °C? O NANO3 NaBr KNO3 KBr

A:

Q: Which of these compounds is most soluble in water and why? (A) CH4; it forms hydrogen bonding with…

A: CH4 do not form any hydrogen bonding and it is also a  non polar compound so it is insoluble in…

Q: A bottle of carbonated water typically has a total pressure of 2,200mmHg. This pressure is created…

A: Given: The total pressure of bottle is 2200 mmHg.  The partial pressure of water is 23.8 torr.…

Q: Consider the two forms of a non-biologically important amino acid shown below. What is the biggest…

A: In case of amino acid, chemist picture, molecule does not have any charge on it and it can form…

Q: If 7.27 grams of sucrose, C12H22O11, are dissolved in 35.2 grams of water, what will be the boiling…

A:

Q: In the movie Spy Kids, Carmen and Juni use rebreathers instead of a scuba tank and/or snorkel tube…

A: Rebreather is an apparatus which can be used as substitute to oxygen cylinder in scuba diving.…

Q: A 4 M acetic acid (CH3COOH) solution lowers the freezing point by -8oC;    a 4 M KF solution yields…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The enthalpy of vaporization of CO2(l) is 9.8 kJ/mol. What is the vapor pressure (in atm) of CO2 at…

A: The objective of the question is to find the vapor pressure (in atm) of CO2 at .Given, is .The…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.