Critical point 22,089 Water Ice (liquid) (solid) 101 Triple point 0.6 Water vapor (gas) A 0 0.01 100 374 Temperature (°C) Discuss the effect of the addition of sodium chloride (NaC1) salt on the freezing point and boiling point of liquid water and indicate this effect in the phase diagram sketched in picture above. (ii) Determine the freezing point and boiling point of the solution when 21.2 g of NaCl are added into 135 mL of water. Given that the van't Hoff factor for NaC1 is 2; the molal freezing point depression constant, Kf and the molal boiling point elevation constant, Kb are 1.86 °C/m and 0.52 °C/m respectively. (iii) Pressure (kPa)

Q: A 3.02 g sample of a soluble ionic compound with the formula MX2 was dissolved in 780 mL of solution…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: The vapor pressure of pure water at 20 ºC is 17.54 torr.  What will the vapor pressure of water be…

A: Given, VAPOUR pressure of pure water , P° = 17.54 torr  Mole fraction , X = 0.476

Q: The freezing point of pure benzene (C₆H₆) is 5.49 °C. The freezing point of a solution made using…

A: Pure benzene (solvent) freezing point = Tp = 5.49 °C Freezing point of Solution = Ts = -13.0 °C Kf…

Q: An aqueous potassium chloride solution is prepared by dissolving 87.1 g of KCI in 435.0 g of water.…

A: Molar mass of KCl is 74.55 mol/L. Molality is defined as the no. of mol of solute present in 1 kg of…

Q: A researcher prepares a new compound and uses freezing point depression measurements to determine…

A: Given Mass of compound = 1.538 g mass of cyclohexane = 75 g  freezing point of the solution = 2.16°C…

Q: A solution is prepared by mixing 45.68 g of carbon disulfide (CS2, 76.13 g/mol) with 16.42 g of…

A: We know that,  the partial pressure of solute in vapor phase is equal to the mole fraction of solute…

Q: The boiling point for an aqueous solution was found to be 102.59 degrees celcius. What is the…

A: We have to calculate the freezing point of solution

Q: The boiling point of chloroform CHCI, is 61.70°C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

A: The boiling point of the pure chloroform, (T0b)=61.70C. The change in the boiling point on addition…

Q: Barbiturates are synthetic drugs used as sedatives and hypnotics. Barbital (molar mass = 184.2…

A:

Q: A student prepared a sugar solution containing 7.5345 g of sugar (C12H22011, 342.29 g/mol) in 25.00…

A: Answer:For a non-electrolyte and non-volatile solute, depression in freezing point of solution is:

Q: 6.50

A: Dear student I have given answer to your question in the image format.

Q: The molal freezing point constant for water is 1.86 degreesC/m. At what temperature will a mixture…

A: The freezing-point depression is given by

Q: At a certain temperature the vapor pressure of pure thiophene (C₂H4S) is measured to be 0.61 atm.…

A:

Q: Use the following information to calculate the molar mass of the unknown Mass of unknown solute =…

A: The relation between depression in freezing point and molality of a solution is given as follows;…

Q: The partial pressure of water (PH2O) above a water/alcohol mixture is 0.024 atm. If the vapor…

A: The partial pressure of a component in the solution (Pi) is given by the expression (1) in which xi…

Q: 95.1

A: Dear student I have given answer to your question in the image format.

Q: G A certain liquid.I has a normal boiling point of 102.60 °C and a boiling point elevation constant…

A: To calculate the mass of (NH4)2SO4 that was dissolved in the solution, need to follow these steps:1.…

Q: he molar mass of unknown molecular compound is determined using freezing point depression. The…

A: Kf = molal depression constant

Q: At a certain temperature the vapor pressure of pure chloroform (CHCI,) is measured to be 57. mmHg.…

A: Given data :

Q: At a certain temperature the vapor pressure of pure thiophene (C4H4S) is measured to be 0.16 atm.…

A: Information about the question

Q: Calculate the vapor pressure of a solution of 23.5 g of glycerol (C₂H₂O3) in 500.0 g of water at…

A: Given: Amount of glycerol = 23.5 g  Amount of H2O taken = 500.0 g Vapor pressure of H2O at 25°C =…

Q: e equation used to calculate the change in freezing point (AT) of a substance is AT₁= = Km ere K, is…

A: Molarity is a method of expressing concentration of the solution. It is defined as number of moles…

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: A solution is made by mixing 39.0 mL of ethanol, C,H,O, and 61.0 mL of water. Assuming ideal…

A: Volume of ethanol = 39ml Density of ethanol = 0.789g/ml Vapor pressure of ethanol = 43.9torr Volume…

Q: solution with 25.0 g glucose in 100 g water and a temperature of 25 °C. Assume normal bp water = 100…

A:

Q: Calculate the freezing point and the boiling point of each of the following aqueous solutions.…

A: Given: The molality of both MgCl2 and FeCl3 is 0.056 m. The boiling point elevation constant and…

Q: A certain substance X melts at a temperature of – 7.4 °C. But if a 350. g sample of X is prepared…

A: Given data contains, Freezing point of temperature is -7.4°C. Mass of sample X is 350.0 g Mass of…

Q: 0.0821 kg of biphenyl (C12H10) is dissolve in benzene (CHo) to create a solution with a total volume…

A:

Q: A solution is prepared by mixing 75 g of methanol (CH3OH, 32.04 g/mol) with 25 g of ethanol…

A:

Q: er Write the mass balance for a K2CO3 solution if the species in the solution are K+, CO32-, HCO3,…

A: The species in the K2CO3 solution are:K+CO32-HCO3-H2CO3 H+OH-We need to calculate the mass balance…

Q: When 5.71g of naphthalene is added to 152g of benzene the solution freezes at 3.98 degrees Celsius.…

A: Recall the data from the question, mass of naphthalene=5.71 g mass of solvent=152 g  Solvent in…

Q: Calculate the vapor pressure of a 50.0% by mass a-terpineol (C10H180) solution in water at 94.0 °C…

A: Given, Total mass of the solution = 100 g 50% by mass of solute present. So, mass of the solute (W2)…

Q: A solvent is known to have a freezing point temperature of 2.5 degree celcius. When a solution is…

A:

Q: A 4.07 g sample of a white ionic solid MCI2 is dissolved in 50.0 g of water and the solution is…

A: Depression in freezing point is: ∆Tf=i×Kf×m Where i is Van't Hoff factor, Kf is cryoscopic constant,…

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.