Is there a difference between the melting point and the freezing point of a pure substance in a given location?  Why or why not?

Q: A pure compound melts at 48-49 degrees celsius. If a few grains of sand are mixed in with the…

A: Melting point of a compound is a temperature at which compound changes from solid to liquid.  To…

Q: At what temperature of water in its least dense state? Draw and a label a water molecule. Identify…

A: Water exists in liquid phase at room temperature and pressure. A water molecule consists of an…

Q: What volume of ethanol in milliliters (density = 0.7893 g/cm3) should be added to 427 mL of water in…

A: dddxxx The amount of substance dissolve in a given volume of solution is called density of the…

Q: Mixtures of liquids whose boiling points are similar (separated by less than 70 °C) require…

A: Given that : We have to identify the distillation method used to separate the mixture of liquids…

Q: If you touch the sides of a beaker containing NaOH being dissolved, will it feel warm or cold to…

A: There are two types of reaction involving heat exchange- 1. Exothermic Reactions 2. Endothermic…

Q: What is the Simpliest form of substance

A: What is the Simpliest form of substance

Q: Describe an experiment that would enable you to determine the mass (g) of solids suspended in a 1-L…

A: There are two types of solid particles that are found when we dissolve the solid in water. The…

Q: ΔS when 1 mol of frozen ethanol melts

A: The entropy change when 1 mole of solid ethanol melts at its normal melting point is 29.4 JK 'mol'.…

Q: How is stoichiometry used to calculate energy absorbed when a mass of liquid boils? A. Grams liquid…

A: Given, The stoichiometry used to calculate energy absorbed when a mass of liquid boils is :

Q: What is the eff ect of addition of impurities on  freezing and boiling points of a substance?

A: Boiling point is temperature at which vapour pressure of liquid becomes equal to atmospheric…

Q: lower than the freezing point of the original liquid. Is the original liquid pure o a mixture?…

A: The depression in freeing point of a solution is a colligative property. The freezing point of a…

Q: What will happen when cold water with higher density mixes with warm water?

A: When a molecule is cooled, then the particles will move slowly since it's kinetic energy is low. As…

Q: I. Evaporation of water H,0 (1) (),

A: Hi, since you have posted multiple questions. We will answer the fourth question for you. Kindly…

Q: The freezing temperature of water was measured as -3.52 °C when 64.8 g of saccorose was dissolved in…

A: Freezing point depression - It is defined as the lowering of freezing point when a non-volatile…

Q: For any given mixture of two miscible liquids, which component of the mixture will be present in the…

A: Certain properties that could relate the vapor pressure of volatile liquids/volatile liquid mixtures…

Q: what do the melting point and freezing point of a substance in common? what is the difference…

A: Matter exists in specific state as liquid, solid or gas depending on external factors such as…

Q: What is the normality of the potassium permanganate?

A: Given mass of Na2C2O4 = 0.2295 g  Gram molar mass of Na2C2O4 = 134 g/mole  Volume of KMnO4 in mL =…

Q: Why do impure compounds normally have a lower melting point than the pure substance?

A: Melting point is one of the characteristic property of a compound. It is the equilibrium temperature…

Q: True or false.  An alloy, such as brass is an example of a solution in the solid state?

A: The homogenous mixture of two or more substant is known as a solution.

Q: How much table salt should be added to 300 g water to lower its freezing point to -2.00°C? Follow…

A: Given, Mass of water = 300 g = 0.3 Kg Freezing point of solution (Tf(solution)) = -2.00 °C Amount…

Q: Suppose you want to purchase a syrup containing water and sugar and you have two brands from which…

A: Freezing point, temperature at which a liquid becomes a solid. As with the melting point, increased…

Q: Some laboratory procedures involving oxygen-sensitive reactants or products call for using water…

A: Dissolved oxygen is always present in water.

Q: Miscible liquids from homogeneous mixture when added together. is Toluene miscible with water?, or…

A: The solubility of a solute in a solvent depends upon the intermolecular forces of attraction between…

Q: Ice cubes from a freezer have a temperature of about -12°C (10°F), which is cold enough, but contact…

A: Det Tf=i ×Kf×m ion ,i for Nacl-->Na+ +Cl- i=2

Q: What mass in grams of NaCl would need to be added to 2551 g of water to increase the boiling…

A:

Q: Using only the information above, can you calculate the solubility of X in water at 21. ° C ? If you…

A: Solubility is a term used for the maximum amount of solute at equilibrium that can dissolve into the…

Q: Among the following compounds: H2O, NaF, and HCl, which will have the highest freezing point? Given…

A: Freezing point of solution is depends upon interaction and shape of molecule. NaF has ionic bond. So…

Q: Describe an experiment demonstrating that the freezingpoint of water changes when salt (sodium…

A: Describe an experiment demonstrating that the freezing point of water changes when salt (sodium…

Q: What is the boiling point of pure water in °C? (no decimals and no units needed in answer) Answer:…

A: The temperature where the liquid and gaseous phase are in equilibrium is called boiling point.

Q: Colligative Properties of Solution. Explain why surrounding your ice cream mixture with salted ice…

A: Here the colligative property that involved is Depression in freezing point . Salt lowers the…

Q: In no more than 5 sentences, give the relevance of determining the melting point of a substance.

A: Melting point of a substance can be defined as the temperature at which a solid start converting…

Q: Which of the following has the lowest freezing point? A) Н.О B) N, C) SO, D) H, E) CO,

A: The freezing point is a characteristic physical property of a solid. The temperature at which a…

Q: Calculate the freezing point and boiling point for 0.43 molmol ethylene glycol and 0.17 mol KBrmol…

A: Boiling point =374.8K (Upto one decimal place) Freezing point= -6.5K (upto one decimal place)

Q: The normal freezing point of n-octane 1C8H182 is -57 °C. (a) Is the freezing of n-octane an…

A: The temperature at which a substance undergoes phase transformation from liquid state to solid state…

Q: Consider the Navarro, N scale at freezing point and boiling point are 30oN and 330oN,respectively.…

A: The relation of of Navarro scale to Celsius scale is given by (N scale -melting point/(boiling…

Q: A new linear temperature scale, degrees Zunzol (Z), is based on the freezing point and boiling point…

A:

Q: 8) The freezing point of methane is -295°F and the boiling point is -263°F. The tem re of the…

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

Q: Ethylene glycol is used as antifreeze in automobile radiators. What is the freezing temperature and…

A:

Q: Are the melting temperature and freezing temperature the same for a pure substance? Why is that?

A: Melting point is the temperature at which solid substance start to convert into liquid. Example:…

Q: When is the water the densest, as solid or a liquid? Explain your answer. Explain why this property…

A: Water is densest as a liquid. This is because the solid water (ice) have large amount of space…

Q: What are the phases that methanol, chloroform and water will form when they are mixed using the…

A: Methanol (CH3OH) and water (H2O) are polar solvents.  Chloroform (CHCl3) is also a polar molecule…

Q: What is formed when gas is enclosed in a chamber then liquified under very high pressure? * What…

A: Answer-1 When a gas is liquefied in a closed chamber under very high pressure, particles will come…

Q: freezing point and boiling point of water on the Celsius scale?

A: The freezing point is the temperature at which a liquid substance turns into its solid phase. The…

Q: Why is liquid water more dense than solid water? In simple terms, so that I can understand. Thank…

A: Liquid water is more dense than solid water i.e ice. Reason:-  Due to intermolecular hydrogen…

Q: At what temperature of water in its least dense state? Draw and a label a water molecule. Identify…

A: Water exists in liquid phase at room temperature and pressure. A water molecule consists of an…

Q: You are required to illustrate the different phase changes with sugar and water.

A: Phase changes It is the process in which matter changes its state from one phase to other phase. Eg…

Q: Sample of water at 80.0°C to form a saturated solution. Using the information on Table B, determine…

A: Given 100g of water  Specific heat of water = 4.18J/gK = 4.18J/g°C  We have to calculate heat…

Q: Match the following units to their correct property: A Density of Solution B Molarity C…

A: Density is defined as the ratio of mass of a substance to its volume. The formula to calculate…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.