11. Suppose 28.0 grams of metal is heated to 100°C in a test tube immersed in a boiling water bath. The hot metal is then dropped into 103 g of water in a styrofoam cup calorimeter. The temperature of the water raises from 25.0 °C to 28.3°C. (a) Describe the direction of heat flow in this experiment. (b) When was thermal equilibrium reached? (c) Calculate the specific heat of the metal.

Q: From a consideration of the reaction 2NO(g) + O2(g)  2NO2(g) H = 114.1 kJ if 2.00 * 10^2 g of…

A: given mass of NO2 = 2*102 g

Q: How much heat is required to raise the temperature of a 1.15 kg piece of copper metal from 25.0 °C…

A: Given :-  Mass of Copper metal = m = 1.15 kg = 1150 g  Initial temperature of Copper metal = Ti =…

Q: When 107 g of water at a temperature of 23.5 °C is mixed with 65.8 g of water at an unknown…

A: According to the data given in the question,Weight of water at 23.5℃ (296.5 K) = 107 gWeight of…

Q: 226 kJ of heat increases the temperature of 47.0 kg of copper by 12.5 ℃, what is the molar heat…

A:

Q: A metal object with a mass of 19.2 g is heated to 96 °C and then transferred to a calorimeter…

A:

Q: Which statement below regarding heat capacity is FALSE? a. Specific heat capacity refers to the…

A: Specific heat capacity:Specific heat capacity is the amount of heat energy required to raise the…

Q: A piece of chromium metal with a mass of 24.41 g is heated in boiling water to 98.3 °C and then…

A: Specific heat- It is the amount of heat required to raise the temperature of 1g of substance by 10…

Q: A 25.0 mL sample of 1.0 mol/L aqueous solution of hydrochloric acid, HCl(aq), was mixed with 25.0 mL…

A: Heat energy, also known as thermal capacity, is a physical property of matter that is defined as the…

Q: 237-g piece of molybdenum, initially at 100.0 °C, is dropped into 244 g water at 10.0 °C.  When the…

A: According to the law of calorimetry, when two object with different temperature are remain in touch…

Q: When a 0.740-g sample of trinitrotoluene (TNT), C7H5N206, is burned in a bomb calorineter, the…

A: In a bomb calorimeter, heat of combustion is calculated as: q=mC∆T where m is mass, C is heat…

Q: How much heat (in kJ) is needed to raise the temperature of 100.0 grams of water by 25.0 °C?  The…

A: Mass of water(m) = 100 gm  specific heat capacity of water(s) = 4.184 J/g·°C  Increase in…

Q: The highly exothermic thermite reaction, in which aluminum reduces iron(III) oxide to elemental…

A: The balanced reaction taking place is given as, => 2 Al (s) + Fe2O3 (s) -------> 2 Fe (s) +…

Q: A 434.5 g sample of water at 20.0 °C is mixed with 100.0 g of a certain metal at 95.0 °C. After…

A: to find Cp for this metal use this above ,Heat lost by the metal = heat gained by the water Given…

Q: 5.114 A 3.52-g sample of ammonium nitrate (NH4NO3)was added to 80.0 mL of water in a…

A: Given that : Mass of ammonium nitrate = 3.52g Mass of water = 80.0mL = 80.0g Change in temperature…

Q: Consider the reaction: C,H,OH) + 30, (g) →2CO,(g)+3H,01), AH = -1.37 x 10° kJ When a 21.1-g sample…

A:

Q: In an experiment, a 0.8068 g sample of phthalic acid (C8H6O4) is burned completely in a bomb…

A: The number of moles of phthalic acid present in the experiment can be calculated as,

Q: The highly exothermic thermite reaction, in which aluminum reduces iron(III) oxide to elemental…

A: The given balanced thermochemical equation is 2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s), ΔH = -850 KJ…

Q: 1. A sample of metal with mass 250.0 g is heated to 130.0 ℃ and dropped into 425 g of water at 26.0…

A:

Q: An aluminum saucepan weighing 750 g contains 500 g of water at 25 ° C. In this water, you boil 10 g…

A: Solution - According to the question - Given - steam is bubbled into the water in the aluminum pan,…

Q: What is a standard state? What is the standard enthalpy change for a reaction?

A: Standard state of a material is the reference point  that is used to calculate its properties under…

Q: A chemical reaction in a bomb calorimeter evolves 3.15 kJ of heat. If the temperature of the…

A: From given data q = 3.15 kJ = 3150 J  T1= 19.19°C = 292.19 K T2= 22.03°C = 295.03 K  Formula used…

Q: Sulfur trioxide can be removed from the exhaust gases of power plants by reaction with lime…

A: Balanced chemical equation: CaO(s) + SO3(g) ------> CaSO4 (s) ΔH ° = –886 kJ  This shows that…

Q: How much heat is required to raise the temperature of a 75.0 gram sample of Titanium from 46.OC to…

A: The required amount of heat to increase the temperature of a compound can be determined by the…

Q: The combustion of 1 mol of glucose, C6H12O6 liberates 2.82 x 103 kJ of heat. If 1.25 g of glucose is…

A: Given that, 1 mol of glucose, C6H12O6 liberates 2.82x103 kJ of heat. Also, the calorimeter,…

Q: Two substances, A and B, initially at different temperatures, come into contact and reach thermal…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: The neutralization reaction between sodium hydroxide and hydrochloric acid forms water and sodium…

A: Answer:- this question is answered by using the simple concept of calculation of heat change using…

Q: Which statement is true of the internal energy of the system andits surroundings following a process…

A: The change internal energy is positive that is ∆Esys=+65 kJ.

Q: ) If a gas absorbs 2.0 J of heat from the surroundings and then performs 15.2 J of work, what is the…

A: • The values provided in the question are:-       i) Quantity of heat absorbed by the gas, Q = 2.0 J…

Q: When 13.99mL of HCl of unknown concentration (but less than that of the base) are reacted with…

A: Given : Concentration of NaOH = 3.172 M Volume of NaOH solution = 15.00 mL = 0.0150 L…

Q: A 60.86-g stainless steel ball bearing at 115.81°C is placed in a constant-pressure calorimeter…

A:

Q: A piece of chromium metal with a mass of 24.64 g is heated in boiling water to 98.3 °C and then…

A: The relationship between heat and change in temperature can be expressed by the equation given…

Q: A 33.58 g stainless steel ball bearing at 117.82°C is placed in a constant-pressure calorimeter…

A: We are given that the weight of stainless steel ball-bearing is 33.58g and its temperature is…

Q: In the construction of bridges and skyscrapers, gaps must be left between adjoining steel beams to…

A:

Q: 31. When a 0.740-g sample of trinitrotoluene (TNT), C,H;N2O6, is burned in a bomb calorimeter, the…

A: We know that : Heat capacity, C = specific heat, c*mass, m  Or, specific heat, c = C/m = 534/675…

Q: The addition of 3.15 g of Ba(OH)2∙8H2O to a solution of 1.52 g of NH4SCN in 100 g of water in a…

A: Given that : Mass of BaOH2.8H2O (m1) = 3.15 g Mass of NH4SCN (m2) = 1.52 g Mass of water (m3)  = 100…

Q: 27. The addition of 3.15 g of Ba(OH)2·8H2O to a solution of 1.52 g of NH4SCN in 100 g of water in a…

A: The balanced reaction for the reaction between Ba(OH)2.8H2O with NH4SCN in aqueous solution.…

Q: If 50.0 g of water change in temperature from 22.5 to 25.4 deg C and the specific heat capacity of…

A: Amount of heat required is given by, q =m.c.∆T where q is the heat required, m is the mass, c is the…

Q: When 36 g of a metal at 89 C is added to 48 g of water at 27 C, the temperature of the water rises…

A: specific heat (Q) =m x S x  ΔT MASS =m SPECIFIC HEAT =S CHANGE IN TEMPERATURE=ΔT

Q: the molar heat capacity ofC4H8O?

A: Given that amount of heat, temperature difference, mass of the sample. I have provide solution in…

Q: a system produces 123.0 kJ of heat and does 45.0 kJ of work on the surroundings, what is the ∆E for…

A: First law of thermodynamics can be written as  dQ=dE-dWwheredQ=heatdE=internal energydW=work done…

Q: Apply the First Law of Thermodynamics to answer the following: a. If a system does 475 J of work on…

A: According to the first law of thermodynamics, the internal energy change, work and heat are related…

Q: specific heat of gold is 0.129J/g C. what is molar heat capacity of gold?

A: The Question is about to calculate the Molar Heat Capacity of Gold -

Q: You want to determine the heat capacity of an unknown metal sample in order to help identify it. To…

A: A numerical problem based on heat capacity of an unknown metal, which is to be accomplished.

Q: How much heat must be added to a 38-g sample of aluminum to increase its temperature by 250.0°C? The…

A: • The values provided in the question are:-   i) Mass of a sample of aluminium, m = 38 g  ii)…

Q: A piece of silver of mass 363 g has a heat capacity of 85.7 J/°C. What is the specific heat of the…

A: Given: The mass of silver piece, (m)=363 g. The heat capacity of silver, (C)=85.7 J/0C

Q: A piece of chromium metal with a mass of 24.50 g is heated in boiling water to 98.3 °C and then…

A:

Q: Which of the following best defines molar heat capacity. a. The quantity of heat required to raise…

A: heat capacity is the property of matter which is the amount of heat required to raise the unit…

Q: 4. A 50.0 mL solution of 1.2 M HCI at 24.1°C is mixed with 50.0 mL of 1.3 M NaOH, also at 24.1°C, in…

A:

Q: 0.500 g of ethanol [CH3CH2OH(l)] was burned in a bomb calorimeter. The temperature of the water rose…

A:

Q: When methanol, CH, OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is…

A: