A copper cube with an edge measuring 1.60 cm and an aluminum cube with an edge measuring 1.65 cm are both heated to 58.5 ∘C and submerged in 100.0 mL of water at 21.5 ∘C. What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 g/mL for water.) Express your answer to three significant figures.

Q: Zinc metal reacts with hydrochloric acid according to the following balanced equation:…

A: Given reaction is:    Zn (s) + 2 HCl (aq) → ZnCl2 (aq) + H2 (g)

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A:

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A: Introduction:When a solid dissolves in water, heat may be released or absorbed. The heat of…

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A: heat  capacity is defined as amount of energy needed to raise unit temperature of an object.

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A: Given mass of ammonium chloride = 5.0 gThe volume of water = 250.0 mLThe initial temperature of…

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A: The reaction is Exothermic.

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Q: 0.700 moles of an unknown solid is placed into water to make 150.0 mL of solution. The solution's…

A: When solid is placed in solution, temperature of solution decreased, that means solid absorbed heat…

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

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Q: Zinc metal reacts with hydrochloric acid according to thể föllowiR Zn (s) + 2 HCI (aq) -- ZnClz (aq)…

A: The reaction involved is Zn (s) + 2HCl (aq) -----> ZnCl2 (s) + H2 (g) mass of zinc = 0.104 g…

Q: When a 4.00 g sample of RbBr is dissolved in water in a calorimeter that has a total heat capacity…

A:

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

A: specific heat capacity is defined as the amount of heat required to raise the temperature of a…

Q: When 5.40 g of a solid mixture composed of NH4Cl and CaCl2 was dissolved in 100.0 mL of water, the…

A: Given Mass of NH4Cl = 1.78 g Mass of CaCl2 = 3.26 g

Q: A student determines the heat of dissolution of solid cobalt(II) sulfate using a coffee-cup…

A: Answer:The law of conservation of energy states that energy cannot be created nor destroyed and it…

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

A:

Q: Calculate ΔSsurr at the indicated temperature for a reaction having each of the following changes in…

A: Calculate the ΔSsurr at the indicated temperature for a reaction having each of the following…

Q: Zinc metal reacts with HCI according to the following balanced equation: Zn(s) + 2HCI(aq) -->…

A: Given : volume = 47.0 ml density = 1.03 g / ml specific heat = 4.184J /g°c temperature change of…

Q: What will be the final temperature of a 418−g sample of water, initially at 15.0 °C, after 61.7 kJ…

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Q: reaction

A: Dear student this question is related to enthalpy change.

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A: The term thermal equilibrium may be explained as the heat liberated will be equivalent to the heat…

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A: The mass of the solution is the same as the mass of water and the mass of the 25.4 mL of water is…

Q: A calorimeter contains 25.0 mLmL of water at 12.5 ∘C∘C . When 1.70 gg of XX (a substance with a…

A:

Q: When 2.25 g of sodium hydroxide (NaOH) was dissolved in 100.00 g of water a value of 10.00oC was…

A: The heat of the solution produced when 2.25 g of sodium hydroxide is dissolved in 100 g of water, is…

Q: 5.00 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 100.0 g of water and the…

A: The question can be solved by giveb formula,  Q=m×C×dT where Q = heat energy (Joules, J),  m = mass…

Q: A metal at 86.1 °C and with a mass of 38.8 g is placed in an insulated container with 200.0 g of…

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Q: When a 6.00 g sample of KSCN is dissolved in water in a calorimeter that has a total heat capacity…

A: Given,Mass of KSCN sample = 6.00 gHeat capacity of calorimeter = 3.74 kJ . K-1Decrease in…

Q: When 2.35g Mg(OH)₂ is added to 250.0 mL of water, the temperature of the water raises from 20.5°C to…

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Q: When a 8.00 g sample of KBr is dissolved in water in a calorimeter that has a total heat capacity of…

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Q: Assume 1) that no heat is lost to the calorimeter or the surroundings, and 2) that the density and…

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Q: 25.0 mL of 5 mol/L HCl is added to 30.0 mL of 1.50 mol/L NaOH. The temperature in the calorimeter…

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Q: Assume you mix 100.0 mL 0.200 M CsOH with 50.0 mL 0.400M HCI, the temperature of the combined…

A: The balanced equation is: HCI(aq) + CsOH(aq) → CsCI(aq) + H2O(l) Since all the coefficeints are 1,…

Q: A student determines the heat of dissolution of solid potassium hydroxide using a coffee-cup…

A:

Q: A student determines the heat of dissolution of solid magnesium chloride using a coffee-cup…

A: Heat evolved Q = m . s . (T2 -T1) Heat of dissolution = Q/n Where, n = number of mol of solute

Q: Considering the limiting reactant, how much heat is produced at constant pressure if 0.243 g of…

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Q: A student determines the heat of dissolution of solid cesium perchlorate using a coffee-cup…

A: The objective of this question is to calculate the enthalpy of dissolution of cesium perchlorate…

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A: The enthalpy of neutralization for both the students should be same.

Q: CI 1) Н,О 2) CH-COOОH X

A: The structure of X has to be given,

Q: Zinc metal reacts with hydrochloric acid according to the following balanced equation:…

A: •in coffee cup calorimeter the heat exchange is equal to change in enthalpy of the reaction.   • in…

Q: Reactions between acids and bases (neutralization reactions) are exothermic. You have a solution of…

A: Given : Neutralisation reactions i.e reactions between acids and bases are exothermic in nature. You…

Q: Zinc metal reacts with HCl according to the following balanced equation: Zn(s) + 2HCI(aq) ZnCl2(aq)…

A: Given , Initial temp= 21.60 °C Final temp = 24.60 °C  Mass of Zn = 0.14 g Molar mass = 65.38 g…

Q: Ag (aq) + 1 (aq) → Agi(s) If the two solutions are initially at 21.74°C, and if the final…

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