a. what is the value of q associated with the process b. what is the final temperate of the solution if the initial temperature of the cold pack is 28 degrees celsius

Q: Which of the following represents an increase in the potential energy of the system? A. Na → Na+ +…

A: Answer:In exothermic process, system loses the energy and its potential energy decreases and in an…

Q: How to find Moles of magnesium chloride. #7? Freezing-point depression constant (°C/m)…

A: The question is based on mole concept. we need to calculate moles of magnesium chloride based on…

Q: Write the expression for Keq for the following reactions. In each case indicate whether the reaction…

A:

Q: You have one mol sample of water at -30 °C and you heat it until you have gaseous water at 140°C.…

A: Given data Initial temperature (T1) = - 30 oC Mole of water = 1 mole Final temperature (T2) = 140 oC…

Q: The system ice (s) + energy > water (l) is in equilbrium at 0 degrees Celsius in a closed container.…

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

Q: 5. When meat is cooked, protein breaks down, as shown below. The degraded protein is able to undergo…

A: The chemical reaction happens between amino acids and reducing sugars in heat is called Maillard…

Q: A student dissolved 5.0g of KCl(s) in 100.g of distilled water at 20.00°C. The temperature of the…

A: In Given case, intially temperature was more and when the dissolution is complete, temperature goes…

Q: (T-T=T2) noituloa to (TA) qmet ni egnaro 4. Complete the chemical equations for the reaction in Part…

A: Answer:In exothermic reaction heat gets released during the reaction and in endothermic reaction…

Q: A "coffee-cup" calorimetry experiment is run for the dissolution of 1.50 g of aluminum acetate…

A: To calculate the heat of the dissolution of aluminum acetate, we can use the equation: q = m × c ×…

Q: What are the accepted values for the molar heats of solution for sodium bicarbonate and sodium…

A: Using appendix for the accepted values of molar heats of solution.

Q: when 5.00 grams of ammonium chloride, NH4Cl is added to 100 ml water the temperature drops by 4.2 C,…

A: We have to predict the temperature change.

Q: Consider a container with a frictionless piston that contains a given amount of an ideal gas. If the…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: A solution is made by mixing 285.0 mL285.0 mL of ethanol initially at 12.0 ∘C12.0 ∘C with 285.0…

A:

Q: How many grams of C6H6 must decompose according to the chemical equation to transfer heat 430 J of…

A: The decomposition reaction is, 1 mole of reactant is decomposing and transfers 630Kj of heat or (63…

Q: I. Heat of Neutralization. 3. Complete the table below a) Initial temperature of hydrochloric acid…

A: Answer: Average temperature of acid and base T=30+312T=612°CT=30.5°C  Final temperature Tfinal=44°C…

Q: dissolving 1.5 g of a solute into 100 mL of water caused the temperature of the solution to increase…

A: Information about the question

Q: бод has an Two containers of water. I contains 30g of water (A) and I contains 50g of water(B).…

A: Ans. Let final temperature is Tf after mixing Since we know that, q = mcsΔT = mcs(Tf-Ti) q is heat…

Q: QUESTION 5 What is the molar mass of a solid solute if 2.00g g of the solute is dissolved into 9.00g…

A:

Q: At a certain temperature, the following reactions have the constant shown:   N2 (g)  + 2O2(g) --->…

A: For the given reactions the Kc can be calculated as: (a) 2NO2(g)→N2(g)+2O2(g) As per the given…

Q: At 1 atm, how many moles of CO₂ are released by raising the temperature of 1 liter of water from…

A: The solubility of any gas in liquid is given by the Henry's law as,=> S = K P where S =…

Q: In a calorimeter, 100.0 g of water, initially at 21.8 *C, is mixed with 0.300 moles of LiOH. After…

A: Given:Mass of water=100 gMoles of LiOH=0.300 molesInitial temperature=21.8oCFinal temperature=38.7oC

Q: A student makes the following observation: when you mix two solutions (each originally at the same…

A: Given: When you mix two solution's, the temperature of the resulting solution decreases. This is an…

Q: Given the data: Volume of 1.00M HCI (mL) 45.0 Volume of 1.00 M NAOH (mL) 50.0 Initial Temperature…

A: Write the expression for amount of heat needed. q=m.c.∆T where m is the mass, c is the specific heat…

Q: Determine the heat released or abosorbed in J during the dissolving process when calcium chloride…

A:

Q: Calculate the heat released by the reaction, qrxn: If all the heat released by the reaction was…

A:

Q: 60.0 mL of pure water at 282 K is mixed with 100.0 mL of pure water at 339 K. What is the final…

A: just apply ,  Heat given = Heat taken

Q: ENTHALPY OF REACTION for THREE REACTIONS 1.9886 g 2.0193g 1. Mass of solid NaOH(g) Record M and V…

A: The amount of heat required to raise the temperature of the sample is given by: q = mC∆Twhere q is…

Q: You place a frozen bottle of water, initially at -5.2 °C, outside where the summer temperature is…

A: For, the given scenario, we have to predict which of the given option represents  ∆Ssys, ∆Ssurr and…

Q: C OEt Ph A 1. (Et)₂CuLi 2. H30* NaOEt EtOH heat H Ph 1. N-H [H*] 2. B 3. H30, heat E D OEt H3O*,…

A: This is based on multistep organic synthesis

Q: STARTING AMOUNT X What is the change in enthalpy in joules when 5.44 x 104 mol of AgCl solid…

A: Moles of AgCl = 5.44 x10 —4 mol

Q: What would you predict for the thermal energy change (AH) for the process of forming intermolecular…

A: Based on general principles of chemistry, the process of forming intermolecular attractions is…

Q: Write and balance the complete molecular equation for the combustion reaction of liquid…

A: Write and balance the complete molecular equation for the combustion reaction---

Q: The following data set will be used in several questions about an unknown mixture of sodium…

A: Mass of porcelain dish = 47.320 gMass of mixture = 0.9460 gMass of (dish + mixture) = 47.320 g +…

Q: Determine the total heat evolved in Joules in a solution of 20 mL of NaOH and 19 mL of HCI…

A: Given: Volume of NaOH solution added = 20 mL  Volume of HCl solution added = 19 mL Initial…

Q: (5: 2 pts): What is a state function? Give and discuss an example that relates to chemistry.

A: A state function is a variable or properties of a system that defines the state of a system.

Q: H₂(g) + F₂ (g) 2 H₂(g) + O₂(g) calculate the value of AHxn for 2 HF(g) → 2 H₂O(1) AHrxn 2 F₂ (g) + 2…

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the…

Q: 2Al2O3 yields 4Al +3O2 delta H = 3351.5 kJ  what is the delta H for the formation of 10.2 g of Al2…

A: Enthalpy of reaction is equal to the difference in enthalpy of product and reactants.…

Q: Consider a mixture of hexane and heptane as an ideal solution. In what proportion by mass should…

A: ∆mixS is the entropy of mixing which is defined as the increase in entropy when two or more separate…

Q: 1. Calcium carbonate breaks down into calcium oxide and carbon dioxide CaCO3 (s) → CaO (s) + CO2 (g)…

A:

Q: The manufacture of nitrogen trifluoride is a growing industry, due to its use as a plasma etchant in…

A: Given: Mass of ammonium fluoride = 1.20 x 103 g Mass of hydrogen fluoride    = 1.20 x 103 g Mass of…

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.