Aqueous ethylene glycol is commonly used in car radiatorsas an antifreeze and coolant. A 50% ethylene glycol solution in a radiator has a specific heat capacity, c, of 3.5J/(g°C). If a 4.0kg quantity 0of ethylene glycol absorbs 250kJ of thermal energy, what was the temoerature change, ΔT, of the solution? Assume the radiator is a closed system

Q: When a 2.45-g sample of solid sodium hydroxide dissolves in 41.2 g of water in a coffee-cup…

A: In a coffee cup calorimeter  Amount of heat released due to reaction is equal to heat abosorbed by…

Q: When 1.81 g of zinc metal reacts with 100.00 g of 1.00M HCl in a coffee-cup calorimeter, the…

A: Zinc metal reacts with Concentrated HCl is an exothermic reaction(heat produced) thus temperature…

Q: When methanol, CH,OH, is burned in the presence of oxygen gas, 0,, a large amount of heat energy is…

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Q: heat (

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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: When a 4.25 g sample of solid ammonium nitrate dissolves in 60.0g of water in a calorimeter, the…

A: Mass of NH4NO3 = 4.25 g Number of moles of NH4NO3 = mass/mol.wt. = 4.25 g/(80.04 g/mol) = 0.053098…

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: When 20.0 g of aqueous solution B(aq) at 22.0°C is added to 60.0 g of aqueous solution A(aq), also…

A: Given that,The mass of the aqueous solution of B is 20.0 g.The mass of the aqueous solution of A is…

Q: Nitroglycerin decomposes under sudden impact according to the equation below: 4 C3H5N3O9 (I) --> 12…

A: Ans

Q: You wish to heat water to make coffee. How much heat (in joules) must be used to raise the…

A: We have to apply formula Q=mc∆T Here Q is the heat needed to raise temperature c is specific heat m…

Q: Consider the combustion of propane: C;H3 (g) +502 (g)- 3CO2(g) +4H20(1) AH = -2221 kJ A balloon is…

A: Answer :-  Mass of propane = 4292.4 g

Q: A chemist wastes a delicious brownie by burning it in a bomb calorimeter.  Before burning, the…

A: Given: The change in temperature of the calorimeter, (∆T) = 8.75 0C. The heat capacity of…

Q: When 23.6 g of calcium chloride, CaCl, was dissolved in water in a constant-pressure calorimeter,…

A: The mass of calcium chloride is = 23.6 g Increase in the temperature of the calorimeter is =…

Q: 59. In a coffee-cup calorimeter, 50.0 mL of 0.100 M AgNO3 and 50.0 mL of 0.100 M HCl are mixed to…

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Q: Acetic acid (HC2H3O2) can be neutralized with sodium hydroxide, as you saw in laboratory 4. The…

A: The objective of this question is to determine the number of moles of NaOH in a given solution and…

Q: You wish to heat water to make coffee. How much heat (in joules) must be used to raise the…

A: Given- Weight of water = 0.150 kg = 150 gm (1 kg = 1000 gm) T1= 26°C  T2= 97°C Specific heat…

Q: alorimeter, with both substances at 23.0 °C. Calculate the final temperature of the solution. CaCl2…

A: First Calculate mass of Solution by Density×volume Then Calculate heat release in the Process. Q=…

Q: When a 9.01-g sample of solid iron(II) chloride dissolves in 55.7 g of water in a coffee-cup…

A: heat of dissolution is heat released when a salt is dissolved in water and it breaks into ions and…

Q: Deterioration of buildings, bridges, and other structuresthrough the rusting of iron costs millions…

A: In a balanced equation, the number of atoms on both sides of the equation should be the same. This…

Q: How much heat was absorbed by the solution?

A: For constant pressure calorimeter, we know that The heat absorbed by the calorimeter is given by…

Q: When 1.96 g of NaCl are added to 111 g of water in a constant pressure calorimeter , the temp of…

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Q: Calculate the amount of heat needed to raise the temperature of 120°C of water from 25°C to 100°C?…

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Q: When 2.07 g of NaCl are added to 114 g of water in a constant pressure calorimeter, the temperature…

A: Here we are required to find the Enthalpy change for the dissolution of NaCl in water.

Q: The enthalpy of solution (dissolving) of sodium hydroxide is given below.  Determine the change in…

A: given  mass of NaOH = 5.00 g Volume of water = 150 ml enthalpy of solution (∆H) = -44.51 KJ To find…

Q: When a 8.47 g sample of sodium iodide, NaI, dissolves in 160.0 g of water in a calorimeter, the…

A: Calorimetry is based on the principle that when two substances at different temperatures are kept…

Q: piece of metal weighing 45.0 g was heated to 95.0oC, and the hot metal was added to 50.0 g of cold…

A: We know that the heat lost by the metal will be equal with the heat gained by the water.  Thus…

Q: constant‑pressure calorimeter, 23.323.3 g of X is dissolved in 297297 g of water at 23.00 °C.…

A:

Q: In the laboratory a student burns a 0.983-g sample of glutaric acid (C;HgO4) in a bomb calorimete…

A: Given that: Mass of glutaric acid = 0.983 gMass of water = 1170 gChange in temperature, ∆T = 26.90oC…

Q: You have a constant pressure calorimeter filled with 256.328 g of water at 21.3C. A 93.310g piece of…

A: Specific heat represent the amount of heat required to raise the temperature of 1gm of substance by…

Q: A cubic piece of platinum metal (specific heat capacity = 0.1256 J/°C･g) at 200.0°C is dropped into…

A: Given: Specific heat capacity of platinum     = 0.1256 J/ oC.g Temperature of platinum…

Q: A student has a coffee-cup calorimeter with 50.0 g of water at 21.5oC.  They introduce 15.525 g of…

A: The objective of this question is to calculate the sensible heat change of magnesium, q magnesium,…