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: 5.0 g of ammonium chloride (NH4CI) was added to 250.0 ml of water to cause the temperature to…

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

Q: A student dissolves 12.4 g of sodium hydroxide (NaOH) in 200. g of water in a well-insulated open…

A: The reaction is Exothermic.

Q: 250.0 mL of 0.300 M HCl is added to 250.0 mL of 0.300 M NaOH in a coffee cup calorimeter. The…

A:

Q: Suppose 50.0 mL of 0.50 M HCl and 50.0 mL of 0.50 M NaOH, both initially at 21.0°C, are mixed in a…

A: Heat released by a substance or heat added to a substance dpend on the change in temperatrure and it…

Q: A sample of NaOH (MM = 40.00 g/mol) with a mass of 1.812 g was added to a solution of HNO3 in a…

A: Heat absorbed = heat emitted

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: Imagine that you have a Styrofoam cup filled with 20.0 grams of water at room temperature (25.0 °C).…

A: Given: the mass of water = 20.0 g The temperature of water = 25.0 °C The mass of zinc metal = 8.00 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: 19. Ice at 0 °C is placed in a Styrofoam cup containing 361 g of a soft drink at 23.0 °C. Some ice…

A: According to the simple concept of calorimetry which states that heat lost is equal to the heat…

Q: A 5.00-g sample of aluminum pellets (specific heat capacity= 0.89 J/°C-g) and a 15.00-g sample of…

A:

Q: mass

A:

Q: 10. The enthalpy change for the reaction: H+(aq) + OH-(aq) → H2O (l) ΔHorxn =-57.6 kJ/mol. If 161.4…

A: Question 10 and 11 are different questions (not sub parts). According to guidelines of Bartleby, I…

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 a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

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

Q: Zinc metal reacts with hydrochloric acid according to the following balanced equation: Zn(s) +…

A:

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

A:

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

A:

Q: 150 ml of .350M HCl was mixed with 150 mL of .350 M NaOH in a calorimeter of negligible heat…

A:

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…

A: The objective of the question is to calculate the molar enthalpy of neutralization for NaOH when it…

Q: A hot 111.6 g lump of an unknown substance initially at Substance Specific heat (J/(g.°C)) 150.0 °C…

A: By help of Following formula we can calculate the specific heat of the unknown Substance -   M1 C1…

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 232 mL soft drink (that contains mostly water) initially at 11.0 °C is cooled by adding 156.3 g of…

A: A 232 mL soft drink (that contains mostly water) initially at 11.0 °C is cooled by adding 156.3 g of…

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

A:

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…

Q: Two student chemists measured 25.0mL of 1.00 M NaOH in separate calorimeters as in the experimental…

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

Q: A hot lump of 47.547.5 g of iron at an initial temperature of 51.5 °C51.5 °C is placed in 50.0 mL…

A:

Q: Consider the following reaction at 25 °C: 3 NiO(s) + 2 NH3(g) → 3 Ni(s) + N2(g) + 3 H20(g) If AG° =…

A:

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…

A:

Q: Define specific heat capacity. the quantity of heat required to raise the temperature of 1 mole of a…

A: specific heat is the property of the substance and is different for different substances

Q: Consider the following reaction: CO2(g)+ 3H2(g) 2 CH4(g) + H20(g) AH=+46.7 kJ If heat is added to…

A:

Q: An alloy is a solid solution between two metals. A 15.0 grams nugget of an alloy made from gold and…

A: The amount of heat (q) gained or lost is found using the equation: q=mc∆T Here, m is the mass of the…

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

A: The mass of KBr is  .The total heat capacity is .The decrease in temperature is .To find, the molar…

Q: Suppose 200.0 mL of 0.50 M HCl and 200.0 mL of 0.50 M NaOH, both initially at 25.0°C, are mixed in a…

A: The mass of the solution can be calculated as