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

Q: 11) What is the meaning of the term exothermic? * Your answer 12) What is the meaning of the term…

A: Definition of endothermic , definition of exothermic. The reaction type while dissolving ammonium…

Q: What term is associated with the part of a solution that is present in the greatest amount?

A:

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: why salt is scattered on icy roads?

A: Salt is scattered on icy roads during the winter season to melt the ice and clear the roads.

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: IF ethylene glycol has greater amount than water which is the solvent?

A: If ethylene glycol has greater amount than water, then the solvent is ethylene glycol.

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: 10. When you dilute a solution, you need to add more to the solution. O dilute solute solvent energy

A: The concentration of a solution is directly proportional to the number of moles of a solute present…

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: Example of Soil Colloids and importance in the improvement of Agricultural Practice?

A: Soil colloids are the most active portions of the soil because of their large surface area and it…

Q: Describe how water dissolves a salt

A: The solubility of substances in the solvents depends upon the interactions present in 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: Prepare 500 ml of the following aqueous solutions. a. 6.0 M HCL b. 6.0 M NaOH

A: Molarity  = number of moles of solute/volume of solution (in L)  so, number of moles = molarity ×…

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: -5.0 g of water in order to make a 57.0%

A: Given, Mass percent of sodium sulphate solution = 57% Mass of water used = 45 g

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: how many milliliters of ethanol that dissolved in 400 ml of solution by percent 35% ?

A: Volume of solution = 400 mL % 35 v/v means, 100 mL solution contains 35 mL ethanol

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: Predict whether or not these substances will mix. Justify your answer. 1. Oil and sugar 2. Salt and…

A: Given: To predict whether the substances will mix or not.

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.

Q: the attraction forces that allow water to function as a universal solvent are? a. van der waals…

A: The characteristics of van der Waals forces are,  Weak intermolecular forces Depend on the distance…

Q: 1. Which solution below would you expect to have the highest boiling point? a) 0.5 mol of KCI in a…

A: Answer:- This question is answered by using the simple elevation in boiling point when a solute is…

Q: Intermolecular Forces 1. Encircle/Write the species that can form hydrogen bonds with water?…

A: Here we are required to find the species that can form hydrogen bond with water.

Q: Explain why this compound is not soluble in water.

A: In this question, we will discussed solubility of this compound in water. Why this compound not…

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.