Consider the energy diagram for a solution formed between molecules A and B. What can be said about this solution?

Q: bo Identify the solute and solvent in each of the solutions. A. salt (NaCl) in water salt: C. a…

A: The homogeneous mixture of two or more substances is known as a solution. The solution is made of…

Q: When a solute is added to water a) The boiling point of the solution with the solute will be lower…

A: Option (C) is correct  i.e. the boiling point of pure water lower than the solution with solute

Q: explain the structure of the water molecule and the bonds that form between the atoms in the…

A:

Q: Which condition(s) will increase the concentration of dissolved oxygen (O2) gas in water?…

A: Henry law. Solubility of gas is directly proportional to the pressure of gas

Q: How do you determine molarity in DI water to compare to see if molarity increases or decresease…

A: We have to determine the molar solubility of Tl2S in DI water. We also have to tell whether the…

Q: Which of the following describes a colloid? A) a mixture that separates upon standing, but can be…

A: The objective of the question is to identify the correct description of a colloid among the given…

Q: What is the molarity of the solution produced when 159 g of NaCl is dissolved in sufficient water to…

A: Here we are required to find the Molarity of NaCl

Q: Determine the freezing point of a 0.165 mol - kg ' aqueous solution of MgF,. assuming complete…

A: Given: The freezing point of pure solvent i.e; water, (Tf0)=0.00C. The molality of the solution,…

Q: Explain why vinegar (CH₃COOH) can dissolve in water but vegetable oil cannot.

A: Water is a polar substance which means it can dissolve only  polar substance it . Or the substance…

Q: Calculate the amount of conc. HCl

A:

Q: What mass of sodium Sulfate would have to be dissolved in 45.0 g of water in order to make a 57.0%…

A: Mass % of Sodium sulfate solution = 57 % Mass of water = 45 g Mass of Sodium sulfate = x grams Mass…

Q: How much of a 3.0 M (in mL) solution is needed to prepare 200 mL of a 0.2 M HCl solution?

A: For concentrated solution,Molarity of ,Volume of the solution,For diluted solution,Molarity of…

Q: Is aqueous NaOH a solid, liquid, or solution at room temperature? Draw the strucutre and include the…

A: The sodium hydroxide (NaOH) is a white colourless solid in room temperature. When it dissolved in…

Q: just before a snow storm angelica poured salt on her drive way. why is salt applied onto driveway…

A: We put salt on road before snowfall because it decreases the freezing point of water as a result the…

Q: 2. How many mL water and needed if 54.3g of KBr are dissolved to make a 0.32M solution?

A: Required amount of water as a solvent to prepare a solution of desired molarity can be calculated as…

Q: 3.5 moles of KCI are dissolved in 0.50L of water. Calculate the molarity of KCI solution.

A: Given data: Moles of KCl = 3.5 mol. The volume of KCl solution = 0.50 L. To calculate: The molarity…

Q: Will the concentration of solution affect the resulting freezing point or boiling point? What will…

A: The properties that depend on the number of solute particles are called colligative properties.…

Q: If you add 1.00 g of benzoic acid to 10 mL of a 10% aqueous solution of sodium bicarbonate, is the…

A: Given the mass of benzoic acid = 1.00 g  w/V % of sodium bicarbonate, NaHCO3(aq) = 10 %  Volume of…

Q: What would be the molarity of a solution in which 0.670 mole of NaCl is dissolved in enough water to…

A: Given , moles of NaCI dissolved = 0.670 mol volume of water = 2.90 L

Q: How much water should be added to 14mL of 15% alcohol solution to reduce the concentration to 7%?

A: Given,         V1 = 14 ml  M1 = 15%        V2 = ?         M2 = 7 %

Q: 8. Below is a diagram of a salt formula unit. Draw how the salt ionizes and is surrounded by water…

A:

Q: 1. Explain why the temperature gradually drops as the solution is in the process of freezing.

A: A process where a liquid turns into a solid at a constant temperature is known as freezing.

Q: Why can water dissolve NaCl but hexane cannot?

A: Polar compounds soluble in polar solvents and non-polar compounds are soluble in non-polar solvents.…

Q: The freezing point of water is 0.00 °C at 1 atmosphere. How many grams of potassium nitrate (101.1…

A: Given,Reduction in freezing point mass of water Objective : Determine mass of potassium nitrate.

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.