Two aqueous solutions, Solution A and Solution B, are mixed together in a beaker, and the following data is collected.   Initial Temperature, Solution A 22.5\circ∘C Initial Temperature, Solution B 22.6\circ∘C Final Temperature, after mixing 28.9\circ∘C   Based on this data, did a chemical reaction occur? If so, is the reaction endothermic or exothermic? A reaction occurred, the reaction is exothermic A reaction occurred, the reaction is endothermic No reaction occurred

Q: A 0.500-g sample of KCl is added to 50.0 g of water in a calorimeter (as shown). If the temperature…

A: In case of a calorimeter we can relate the heat change of a system to the product of the mass of the…

Q: 4. What mass of water would absorb 7.00 × 10² cal of heat if the temperature is increased from…

A: Heat of a reaction is defined as the heat  produces or absorbed during the reaction which can be…

Q: 3. When 2.0 g of NaOH is the heat of dissolution are dissolved in 49.0 g of water, the temperature…

A: 3.) First we need to calculate the heat using the formula Q = mC∆T  Then we need to calculate moles…

Q: A 8.17 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Guideline message: In case of multiple subparts, ideally the first 3 subparts should be answered, if…

Q: When 1.3 g of KClO3 was added to 151.1 g of water in a calorimeter, the temperature dropped by 0.588…

A: Given, Mass of KClO3= 1.3g Mass of water= 151.1g Temperature dropped(dT)=0.588°C  The heat capacity…

Q: 100.0 g of unknown metal at 150 °C was placed in 1.00 L of water at 25.0 °C. The final temperature…

A:

Q: A 0.562 g sample of KCl is added to 35.8 g of water in a calorimeter. If the temperature decreases…

A: The heat capacity of the resulting solution is 4.18 J/goC, which states that 4.18 J of energy will…

Q: A constant pressure (or coffee cup calorimeter) contains 125g of water at a temperature of 24.2°C.…

A: Given , mass of water = 125 ginitial temperature, Ti=24.2°Cmass of KBr added = 10.5 gFinal…

Q: Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter (as shown) at 22.4 °C causes the…

A:

Q: A student performs a calorimetry experiment. The student combines 100. g of 0.40 M HC1(aq) with 100.…

A: Heat absorbed by the particular species = mass × heat capacity × temperature change

Q: Determine if the following reactions/processes are endothermic or exothermic. A+B → AB ΔΗ AH-75 kJ A…

A: Exothermic reactions release energy into their surroundings, while endothermic reactions absorb…

Q: What is the Enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL…

A: Given : volume of solution = 250.0 mL density of solution = 1.25 g/mL and increase in temperature =…

Q: fy the reaction endothermic or exothermic and give the cha on. (s) + 2 Fe (s) + 645 kJ → 2 Al (s) +…

A: As heat is added to reaction,  so it is endothermic reaction.

Q: Classify the reaction endothermic or exothermic and give the change in enthalpy of the reaction. 2…

A: Given: Reaction: 2 SO3 (g)→ 2S (s)+ 3O2 (g) Δ H=798 kJ

Q: Consider the enthalpy diagram below, and assume that AH_f> 0 for both A and B. Consider a reaction…

A: The objective of the question is to understand the nature of the reaction where A converts to B,…

Q: Part A: Exothermic and Endothermic Reactions: NH4NO3 Solution CaCl2 Solution Initial water…

A: Given, Initial water temperature of NH4NO3 solution is ----- 22°C. Final water temperature of NH4NO3…

Q: student is asked to determine the heat of solution in J/g for the compound ammonium nitrate…

A:

Q: A chemist dissolved an 10.2g sample of KOH in 100.0 grams of water in a coffee cup calorimeter. When…

A:

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A: Change in enthalpy : ΔH = + 66.4 kJ                                      ΔH = + 66400 J Change in…

Q: A solution is made by mixing 197.3 g of ethanol initially at 10.5°C with 250.0 g of water initially…

A: We know that, according to the law of conservation of heat energy, energy gained or loss by the…

Q: Al2O3(s) + heat → 2Al(s) + ½ O2(g) This reaction is    (endothermic / exothermic ).

A: An EXOTHERMIC thermochemical reaction equation is written as  Reactants ------> products + Heat…

Q: A 5.29 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Given information: Mass of unknown sample = 5.29 g Mass of water = 150.00 g Heat gained by solution…

Q: If 4210 J of heat is added to a calorimeter containing 254 g of water, the temperature of the water…

A:

Q: When 1.75 g of CaCl2 dissolves in 125 g of water in a coffee-cup calorimeter, the temperature…

A:

Q: When 0.800 grams of NaOH is dissolved in 100.0 grams of water, the temperature of the solution…

A: Given that,mass of NaOH ,ms= 0.8 gmass of water, mw = 100 gInitial temperature = T1 = 25oCFinal…

Q: A chemist dissolved an 10.8-g sample of KOH in 100.0 grams of water in a coffee cup calorimeter.…

A: Here we are required to find the enthalpy of solution of KOH in the unit of kJ/mol

Q: If 2.36 g of calcium dichloride dissolves in 84.00 g of water in a kalorimeter at a constant…

A: 2.36 g of calcium dichloride dissolves in 84.00 g of water Mass of solution = mass of CaCl2 + mass…

Q: Identify whether the following process are endothermic and exothermic.Justify your answer. 1.…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: In a coffee cup calorimeter with a heat capacity of 21.5 J/ºC, 225 mL of 0.20 M KOH at 22.3 ºC…

A: Given :  Volume of KOH = 225 ml Concentration of KOH = 0.20 M  Volume of HCl = 225 ml Concentration…

Q: 2K + 2H2O → 2KOH + H2 19.55 g of solid K is added to 500. mL of water, initially at 20.0 °C. The…

A:

Q: 25.  Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter at 22.4 °C causes the…

A: Given, Mass of CaCl2 (mCaCl2)  = 3.0 g Mass of water (mw) = 150.0 g Initial temperature, TInitial =…

Q: 1) A 0.416 g sample of KCl is added to 56.5 g of water in a calorimeter. If the temperature…

A: The heat capacity of the resulting solution is 4.18 J/goC, which states that 4.18 J of energy will…

Q: In order to break water into hydrogen and oxygen, water is heated to more than 500°C. Which kind of…

A: We have to predict the kind of reaction and reason.

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.