a) What is the molar heat capacity of liquid water?   J/mol oC (b) What is the heat capacity of 1.27 mol of liquid water?   J/ oC (c) How many kJ of heat are needed to raise the temperature of 9.15 kg of water from 44.4 oC to 71.5 oC?   kJ

Q: When 8.67 g of NaOH are added to 207 g of water in a constant pressure calorimeter, the temperature…

A:

Q: A sample of nickel is heated to 99.8C and placed in a coffee-cup calorimeter containing 150.0 g…

A: Heat change in a body is depends on the mass and temperature change of the body. heat change = mass…

Q: What is the change in temperature of 27.0 grams of liquid water, initially at 0ºC, after it absorbs…

A:

Q: When a 5.00 g sample of KBr is dissolved in water in a calorimeter that has a total heat capacity of…

A: We know that, ΔH = -Ccal x ΔT where Ccal is the heat capacity of the calorimeter and ΔT is the…

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: Calculate the quantity of heat required to increase the temperature of 1.0 kg brass statue standing…

A: We know that, the heat absorbed  or released is given by : Q = m × C × (T 2 - T 1) Where Q = heat…

Q: If 40.0 g of hot water at 80.0oC is added to 60.0 g of cold water at 20.0oC, what is the final…

A: The final temperature is 44 oC

Q: 5.115 A quantity of 50.0 mL of 0.200 M Ba(OH)2 is mixedwith 50.0 mL of 0.400 M HNO3 in a…

A: The balanced chemical equation is given as, BaOH2(aq)+2HNO3aq→BaNO32aq+2H2Ol The required amount of…

Q: 5.138 Metabolic activity in the human body releasesapproximately 1.0 × 104 kJ of heat per day.…

A: Given data: Mass of the body = 55kg Heat released by human body = 1.0×104 Heat of vaporization of…

Q: When 0.0500 mol of HCI(aq) is reacted with 0.0500 mol of NaOH(aq) in 50.0 mL of water, the…

A: Answer - The correct option is - (c) –55.8 kJ  According to the question - Given - q = Cp*T =…

Q: If a 68 gram piece of copper is heated to 100.0oC and then put into a vessel containing 250.0 mL of…

A:

Q: In an isolated system, a solid gold bar at 5°C is placed in direct contact with a solid iron bar at…

A: 3. a) 5°C < T2 < 35°C T2 = final temperature of both gold and Iron after contact with each…

Q: 0.018 moles of a solute is dissolved in 14.85 g of water in a calorimeter with a heat capacity of…

A: Given data mole of solute = 0.018 mole mass of water = 14.85 g heat capacity of Calorimeter , Ccal =…

Q: A 5.000 g sample of methanol, CH3OH, was combusted in the presence of excess oxygen in a bomb…

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

Q: When 50.0 g of 0.200 M NaCl(aq) at 24.1 °C is added to 100.0 g of 0.100 M AgNO3(aq) at 24.1 °C in a…

A: Heat is given by: Q = m×c×∆T  m = mass of the soluton  c = specific heat  ∆T = Temperature change

Q: A 140.0 g sample of water at 25.0°C is mixed with 100.0 g of a metal at 100.0°C. After thermal…

A: The change in energy of a system is given by,

Q: The heat of formation of H2SO4 is -909.27 kj/mol. Give the thermochemical equation for the formation…

A: Here we are required to show the formation of aqueous sulphuric acid

Q: umts OI KJ/IIOI. Consider the dissolution of CaCl2: CaCl,(s) → Ca²*(aq) + 2CI¯(aq) AH = -81,5 kJ An…

A: The heat capacity is the ratio of the energy supplied in the form of heat to the rise in the…

Q: The complete combustion of ethanol, C2H5OH(l), to form H2O(g) and CO2(g) at constant pressure…

A: Given :-  complete combustion of ethanol  C2H5OH(l) + O2(g)→ H2O(g) + CO2(g) + 1235 kJ/mol  To write…

Q: The heat of combustion of ethanol is -1367 KJ/mol, a batch of sauvignon Blanc wine contains 10.6%…

A: GivenThe heat of combustion of ethanol is —1367 kJ/mol.The mass percent of ethanol in the wine is…

Q: (a) What is the molar heat capacity of liquid water?  J/mol oC (b) What is the heat capacity of…

A:

Q: 15.5a of an nknown. metal at 8l6.30°C .5 placed.in 50a at 7.60°C, The waters temparature is measured…

A: Given mass of unknown metal = 15.5 g Initial temperature of metal = Ti = 86.30 0C Final temperature…

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

A:

Q: If a 67 gram piece of copper is heated to 100.0oC and then put into a vessel containing 250.0 mL of…

A: The final temperature of water when hot copper placed in a cold water is to be determined from the…

Q: What is the final temperature of a system if 17.00 g of gold at 90.0°C is placed in 17.00 g of water…

A: In this question, final temperature of the system is to be determined. The given values are : Amount…

Q: The standard enthalpy of combustion of ethanol (C2H5OH) is -235.1 kJ/mol. How many kilojoules of…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: What is the final temperature (in K) of 2.630 g of water with an initial temperature of 293.2 K…

A: Given: The initial temperature of the water, (T1) = 293.2 K. The mass of water, (m) = 2.630 g The…

Q: When 84.64 grams of fictional compound X is added to water to make 449.6 grams of solution, the…

A:

Q: A 74.8 g sample of a metal at 143.2 °C is added to an insulated vessel containing 208g of water at…

A: The given data contains, mass of metal =74.8 g mass of water =208 g initial temperature of water…

Q: The value of ΔHcomb for dimethylphthalate (C10H10O4) is 4685 kJ/mol. How much heat was released…

A: we need to calculate the heat was released during the combustion of dimethylphthalate. the formula…

Q: If 35.0 g H2O at 22.7 °C is combined with 65.0 g H2O at 87.5 °C, what is the final temperature of…

A: The specific heat is determined as the ratio of heat required to the product of mass and temperature…

Q: What is the mass (in g) of a sample of diamond (specific heat = 0.502 J/(g K) which evolve (-8.96)…

A: We know, heat evolved, Q = ms(Tfinal - Tinitial)

Q: How much energy is removed from 500.0 g of liquid water when the temperature is lowered by 1.10 deg…

A: We know that : Q = mC∆T ...(1)  Here, Q = kJ, m = mass of water = 500 gm, C = heat capacity of water…

Q: When 224.5g ofa metal at 22.5°C is placed in 22.5g of H;O at 99.5°C, the temperature decreases to…

A: Given information: Mass of metal = 224.5 g Mass of water = 22.5 g Decrease in temperature = 55.5∘C…

Q: Assume

A: Given: Fluid = Water m =  180 g T1 = 30 deg C T2 = 97 deg C Cp = 4.184 J/g-deg C

Q: To a 2Kg sample of wood 80 KJ of heat is added, and its temperature is found to rise from 20oC to…

A: The specific heat capacity (S) of a substance is the amount of energy required to raise the…

Q: When 2.105 g of NH4NO3 (molar mass is 80.05 g/mL) is added to 100.0 mL of water at 25.05C, the final…

A: To calculate the molar heat of the solution of NH4NO3 in KJ/mol Given that: Mass of solute = 2.105…

Q: The heat of formation at 25°C of liquid acetone, CH,C(O)CH;(1) is -247.5 kJ/mol. Which of the…

A: The heat of formation of a compound is defined as the amount of energy required or released when 1…

Q: When 30.87 grams of fictional compound X is added to water to make 438.9 grams of solution, the…

A: Given : Mass of compound X = 30.87 g Molar mass = 130.58g.mol-1 Heat capacity = 4.18J/g°C. Initial…

Q: A 500.0 g sample of an element at 153.0 C is dropped into an ice-water mixture. 109.5g of ice melts…

A: Answer:   Let's have the information that: Specific heat capacity of ice: 2.03 J/g-°CSpecific heat…

Q: Iron has a specific heat capacity of 0.444J/g-C. 50.0 g of iron at 35C is added to 50.0 g of water…

A: Specific heat capacity is defined as the amount of heat required to raise the temperature of 1…

Q: 5. A piece of copper metal of mass 6.5 kg is heated from 20.5ºC to 324.3°C. Calculate the heat…

A: The amount of heat absorbed by the piece of metal can be calculated as follows:

Q: NO3KNO3 is dissolved in 229 g of water at 23.00 °C.   KNO3(s)−→−−H2OK+(aq)+NO−3(aq)   The…

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Q: The enthalpy of solution (∆ H) of NaNO3 is 20.4 kJ/mol. If 2.05 g NaNO, is dissolved in enough water…

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Q: A 27.7 g sample of ethylene glycol, car radiator coolant,loses 688 J of heat. What is the initial…

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Q: When a 45.0 g sample of alloy at 100.0°C is dropped into 100.0 g of water at 25°C, the final…

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Q: A nickel at 30 °C is dropped into a glass of 15.0 g soda at 3.0 °C, if the heat capacity of the…

A: Given data,Initial temperature of Ni=30oCMass of glass=15.0gInitial temperature of glass=3.0oCHeat…

Q: What is the mass of a sample of alcohol (specific heat = 2.4 J/g°C), if it requires 4780 J of heat…

A: q = mc∆T  q is the amount of heat energy m is the mass of substance  c is the specific heat of…

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

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

Q: The enthalpy of solution (∆H) of KOH is -57.6 kJ/mol. If 3.21 g KOH is dissolved in enough water to…

A: