A copper cube with an edge measuring 1.55 cm and an aluminum cube with an edge measuring 1.62 cm are both heated to 55.0 °C and submerged in 100.0 mL of water at 22.2 °C. What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 g/mL for water.)

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

A: Answer :-- Using the formula for heat (q) is :-q = m⋅C⋅ΔTm (mass of the solution) = ρ⋅V (density ×…

Q: A student dissolves 13.2 g of potassium hydroxide (KOH)in 250. g of water in a well-insulated open…

A:

Q: The enthalpy of vaporization (∆H°vap) of water is 44.0 kJ/mol. If the equilibrium constant for water…

A:

Q: 6. Suppose you had 1.0g and 3.0g samples of zinc metal. Compare the amount of energy required to…

A: Given the mass of two different samples of Zn metal are; m1 = 1.0 g  m2 = 3.0 g

Q: Hydrogen has been suggested as the fuel of the future. One way to store it is to convert it to a…

A: The solution is given below -

Q: arriors arrives at a blacksmith to get new weapons 1.74 kg of iron at 1371 °C, which was cooled down…

A: Suppose, the final temperature of the iron longsword is t°C.  At equilibrium, both the iron and…

Q: 3.A 33.3 g hot piece of metal at 450K is placed in pure water that has a volume of 155.0 mL which…

A:

Q: Frequently, when salts dissolve in water, the solution becomes warm. Such a process is exothermic.…

A: Endothermic process: It is the process in which the system absorbs heat from the surrounding and as…

Q: The specific heat of copper metal is 0.385 J·g -1·C -1 how many J of heat are necessary to raise the…

A:

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

A:

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

A:

Q: 25.0 mL of 1.00 M HCl at 23.5oC react with 25.0 mL 1.00 M NaOH in a styrofoam calorimeter whose…

A: The energy of a system is always conserved. The amount of heat released or absorbed by the reaction…

Q: Consider the following reaction: 2 HBr( g)----> H 2( g) + Br 2( g)…

A: The equilibrium of a reaction will be defined as the condition where the rate of forward reaction is…

Q: A 2.50 g block of iron is heated to 355.5 °C then plunged into 50.0 g of water at 25.0 °C. What will…

A: qw = -qm mw × cw × (Tf - Ti) = - { mm × cm ×( Tf-Ti) } 50 × 4.184 × (Tf - 25 ) = - { 2.50 × 0.444 ×…

Q: Consider the reaction in the Haber process 3H2 (g) + N2 (g) → 2NH3 (g)where delta H° = -91.8 kJ/mol…

A: ΔH0 = -91.8 KJ/mol ΔS0 = -197 J/mol.K        = -0.197 KJ/mol.K T= 25.0 oC = (25.0+273) K = 298 K

Q: When a 7.00 g sample of KBr is dissolved in water in a calorimeter that has a total heat capacity of…

A:

Q: Use the following information to answer the next two questions A technician places a sample of…

A: a.) First we would write expression for Kc and plug the given concentration values at equilibrium to…

Q: 0.178 mole sample of solid NaX is dissolved in 275 mL of water in an insulated container at 23.7°C…

A: The question is based on the concept of specific heat capacity.  It is defined as the amount of heat…

Q: A 22.4 g piece of metal (C = 0.326 J/g oC) initially at 12 oC is placed in 35.9 g of water initially…

A:

Q: Hydrogen chloride is formed by the reaction of hydrogen and chlorine gases. For the reaction at…

A: B) It will shift in the reverse direction and be reactant-favored until equilibrium is…

Q: Consider the equilibrium: 2NO2(g)  <--> N2O4(g). Calculate the equilibrium constant for the…

A: The relationship between standard free energy change ΔGo and equilibrium constant.       ΔG=ΔGo…

Q: Consider the following generic reaction: Keq -2.64 x 10² 2A (g) +2B(g) = 4C(g) + D (g): What is the…

A:

Q: In an exothermic reaction, will raising the temperature tend to favor the products or the reactants?…

A:

Q: For the chemical reaction O3(g) + OH(g) → 2 O2(g) + H(g), DrGq = 5.8 kJ/mol  at 298 K, 0 J/mol at…

A:

Q: Change An exothermic chemical reaction between a solid and a liquid results in gaseous products. A…

A: Answer: Spontaneity of the reaction can be decided on the basis of the value of Gibbs free energy…

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 stainless steel lawn mower blade with a mass of 0.950 kg is being forged. During the process, the…

A: Heat released by steel is equal to heat gain by water.

Q: Zinc metal reacts with hydrochloric acid according to the balanced chemical equation.  Zn(s) + 2…

A: Given mass of Zn = 0.103 g volume of solution = 50 ml density of solution = 1g/ml standard value.…

Q: determine the enthalpy change per mole of precipitate.

A: The given problem is based on the calculation of enthalpy change of precipitation reaction using…

Q: lece of iron [c = ure of 57.0 °C and then placed Og piece of copper [c = 0.385 nsulated container.…

A: Given,  Mass of iron = 208 g Heat capacity of iron = 0.449 J/g-°c Mass of copper = 180 g Heat…

Q: A 23.2 g piece of metal (C = 0.455 J/g oC) initially at 14.2 oC is placed in 35.2 g of water…

A:

Q: 25.0 mL of 1.00 M HCl at 23.5oC react with 25.0 mL 1.00 M NaOH in a styrofoam calorimeter whose…

A: Heat of neutralisation of an acid id defined as the amount of heat evolved when one equivalent of an…

Q: Ice at 0.0 °C is placed in a Styrofoam cup containing 381. g of a soft drink at 15.8 °C. The…

A: To determine the mass of ice that has melted, first of all, the energy that has been liberated by…

Q: When a 2.00 g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of…

A:

Q: 16. What will be the final temperature of a 584−g sample of water, initially at 15.0 °C, after 53.4…

A: 584 g sample of water, initially at 15.0 °C. 53.4 KJ of heat have been added to it.Here we have to…

Q: Suppose 23.00 g ammonium chloride (53.491 g/mol) dissolves in water in a calorimeter to form 100.00…

A: Given,Mass of ammonium chloride ( NH4Cl ) =23.00 gMolar mass of ammonium chloride ( NH4Cl ) =53.491…

Q: /hich of the following would result in a decrease in the quantity of F, decreasing temperature…

A: The question is based on the concept of equilibrium. we have to determine which of the following…

Q: Consider the following equilibrium: N₂(g) + 3H₂(g) → → 2NH3(g) AGO = = -34. KJ Now suppose a…

A: Given reaction is the formation reaction of Ammonia and we have to find out the direction of…

Q: A metal pellet with mass 25.0 g and temperature 90.0 °C is dropped into 100.0 g water originally at…

A: Given:  Mass of metal = 25.0 gm  Initial  temperature = 90.0 °C  Mass of water = 100 gm  Initial…

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

A: First, we will calculate the enthalpy change and then convert that heat into a molar quantity. To…

Q: When a 3.00 g sample of RbBr is dissolved in water in a calorimeter that has a total heat capacity…

A:

Q: For the decomposition of N2O4(g) to NO(g) (at standard state conditions), what is the temperature…

A:

Q: A student dissolves 11.7 g of potassium hydroxide (KOH)in 200. g of water in a well-insulated open…

A:

Q: A student dissolves 11.3 g of potassium hydroxide (KOH)in 300. g of water in a well-insulated open…

A: Answer: To solve this question it is important to understand that water will be considered as…

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

A: