Aqueous ethylene glycol is commonly used in car radiators as an antifreeze and coolant. A 50% ethylene glycol solution in a radiator has a specific heat capacity, c, of 3.5 J/gC. If a 4.0 kg quantity of ethylene glycol absorbs 250 kJ of thermal energy, what was the temperature ciange, AT, of the solution? Assume the radiator is a closed system.

Q: 1. A 5.000 g sample of methanol, CH,OH, was combusted in the presenmce of excess oxygen in a bomb…

A: The given data : The mass of methanol = 5.000 g The mass of water = 4000 g The initial temperature…

Q: A 75.0-g sample of a metal is placed in boiling water until its temperatureis 100.0°C. A calorimeter…

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Q: A hot lump of 35.6 g of aluminum at an initial temperature of 51.6 °C is placed in 50.0 mL H, O…

A: Mass of Aluminum = 35.6 g  Initial temperature of Aluminum = 51.6°C  Specific heat capacity = 0.903…

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

A: Step : 1             calculate the heat produced by the combustion of methanol.

Q: 49.0 mL of 1.05 M sodium hydroxide was mixed with 49.0 mL of 1.05 M hydrochloric acid in a coffee…

A: It  involves usage of calorimetry technique to calculate enthalpy change for the reaction.…

Q: the change in enthalpy for the reaction of sodium hydroxide with hydro chloric acid is -57.9 kJ. if…

A:

Q: ΔH for the dissolving process KOH (s) → KOH (aq) is -57.6 kJ/mol KOH.  In an insulated calorimeter,…

A: In calorie meter we can calculate the hate of the reaction .

Q: In a constant-pressure calorimeter, 60.0 mL of 0.320 M Ba(OH), was added to 60.0 mL of 0.640 M HCI.…

A: In the given reaction both reactants are present in equal moles. Calculate the moles of water,

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

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

Q: 0.15 moles of hydrochloric acid was neutralised by 0.50 moles of sodium hydroxide solution in a…

A: i) HCl is a strong acid while NaOH is strong base, so when they react with each other, they undergo…

Q: If a system has 475 kcal475 kcal of work done to it, and releases 5.00×102 kJ5.00×102 kJ of heat…

A:

Q: A 140.0-g sample of water at 25.0°C is mixed with 111.7 g of a certain metal at 100.0°C. After…

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

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: In the following experiment, a coffee-cup calorimeter containing 100 mL of H2O is used. The initial…

A: Calculate the heat released when 9.10 g of CaCl2 is dissolved:

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: Given: The total mass of the solution (m) is calculated as follows,

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

A: Since you have posted  multiple questions in a single session, we are entitiled to answer only first…

Q: If a system has 375 kcal375 kcal of work done to it, and releases 5.00×102 kJ5.00×102 kJ of heat…

A:

Q: If a system has 4.50×102 kcal of work done to it, and releases 5.00×102 kJ of heat into its…

A:

Q: When 50.0 g of 0.200 M NaCl(ag) at 24.1 °C is added to 100.0 g of 0.100 M A9NO3(aq) at 24.1 °C in a…

A: Given: 0.200 M NaCl         mass  of NaCl =50. 0 gram         specific heat = 4.20 J/g C   find:…

Q: The reaction caused the temperature of the solution to rise from 24.18 °C to 28.27 °C. If the…

A:

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

A: Given: Mass of NaClO4 dissolved = 9.98 g. Mass of water = 100.90 g. Initial temperature of solution…

Q: substance initially at 181.6 °C is placed in 35.0 mL of water initially at 25.0 °C and the system is…

A:

Q: In the laboratory a student finds that it takes 200 Joules to increase the temperature of 15.0 grams…

A: • The values provided in the question are:-    i) Mass of magnesium, m = 15.0 g  ii) Initial…

Q: In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH), was added to 50.0 mL of 0.680 M The…

A:

Q: A hot lump of 38.8 g of aluminum at an initial temperature of 69.2 °C is placed in 50.0 mL H,O…

A:

Q: Suppose two 45-g ice cubes are added to a glass containing 500 cm3 of cola at 20,0°C. When thermal…

A: · Two 45 grams of ice cubes are added to a glass containing 500 cm3 of cola at 20.0°C· When thermal…

Q: When the fuel mixture contained in a 1.56 L tank, stored at 754 mmHg and 298 K, undergoes complete…

A:

Q: The delat H for the solution process when solid sodium hydroxide dissolves in water is -44.4 kJ/mol.…

A: Given: Mass of water = 250.0 g. Mass of NaOH dissolved = 10.1 g. Initial temperature of the solution…

Q: When 2.35 g of NaCl are added to 111 g of water in a constant pressure calorimeter, the temperature…

A:

Q: Liquid bromine dissolves readily in aqueous NaOH: Br2(€) + 2 NaOH(aq) NaBr(aq) + NaOBr(aq) + H,O(€)…

A: Given, Br2 (l)+ 2 NaOH (aq) → NaBr (aq) + NaOBr (aq) + H2O (l) Moles of Br2 = 2.88 × 10-3 mol. Heat…

Q: Aqueous ethylene glycol is commonly used in car radiatorsas an antifreeze and coolant. A 50%…

A: Given : Mass of solution = 4.0 Kg  Heat absorbed by the solution = 250 KJ  Specific heat capacity of…

Q: A sample of toluene (C7H8, 92.13 g/mol) was burned in a bomb calorimeter with a specific heat…

A:

Q: A solution is made by mixing 244.0 mL of ethanol initially at 12.9 °C with 244.0 mL of water…

A: Heat energy absorbed by ethanol = Heat energy released by water Heat energy released /absorbed =…

Q: Consider the dissolution of CaCl2:CaCl2(s) → Ca2+(aq) + 2Cl-(aq)        (Delta)H = -81.5 kJAn 11.0 g…

A: Since the heat released by the reaction of 1 mole of CaCl2 = -ΔH = 81.5 KJ = 81500 J since moles of…

Q: Whipping cream is made at home by using a cold bowl to help the cream stiffen. The bowl is made of…

A: When aluminium bowl ( which is at higher initial temperature ) is placed on ice bath ( which is at…

Q: A gas absorbs 188 J of heat and then performs 310 J of work. The change in internal energy of the…

A: In chemistry, the term internal energy for a given system can be defined as the energy which is…

Q: A hot lump of 37.1 g of iron at an initial temperature of 52.0 °C is placed in 50.0 mL H,O initially…

A:

Q: A hot lump of 39.7 g of copper at an initial temperature of 88.5 °C is placed in 50.0 ml. H,0…

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Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Here we are required to find the final temperature of water using the principle of calorimetry

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

A:

Q: When 1.60 g of liquid PCI3 at 23.9 C is added to a solution of water at in a coffee cup calorimeter,…

A:

Q: Whipping cream is made at home by using a cold bowl to help the cream stiffen. The bowl is made of…

A: Mass of ice = 0.5 kg Mass of aluminium bowl = 250 g Initial temperature of ice = -50C Initial…

Q: 25.00 mL of 0.200 M sulfuric acid was added to 25.00 mL of 0.200 M NAOH, in a constant volume…

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Q: A solution is made by mixing 232.0 mL of ethanol initially at 12.7 ∘C with 232.0 mL of water…

A: According to Law of calorimetry,amount of heat released by the substance having higher temperature…

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

A: Heat absorbed by calorimeter=Heat capacity of calorimeter×Temperature change…

Q: When 1.06 g of liquid PCI3 at 15.5 C is added to a solution of water at in a coffee cup calorimeter,…

A:

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: