One tablespoon of peanut butter has a mass of 16 g. It iscombusted in a calorimeter whose heat capacity is 120.0 kJ>°C.The temperature of the calorimeter rises from 22.2°C to 25.4°C.Find the food caloric content of peanut butter.

A 93.82 g bar of iron was heated to 98.4 °C and then dropped into 38.1 mL of water at 15.3 °C.  The temperature of the water increased to a maximum of 32.7 °C.  Calculate the specific heat capacity of iron.  Assume that the density of water is 1.00 g/mL. heat capacity (J/g°C)

150. g of water (Cs = 4.184 J/g°C) at 20.0 °C is added to a coffee cup calorimeter. A 35.0 g sample of silver (Cs = 0.129 J/g°C) is then placed into the water.  At thermal equilibrium, the temperature of the calorimeter is 22.07 °C.  What was the initial temperature of the silver sample?

When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 5.77 g of NaClO4(s) are dissolved in 112.90 g of water, the temperature of the solution drops from 23.94 to 22.44 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.62 J/°C. Based on the student's observation, calculate the enthalpy of dissolution of NaClO4(s) in kJ/mol. Assume the specific heat of the solution is equal to the specific heat of water. AH dissolution kJ/mol Submit Answer Retry Entire Group 3 more group attempts remaining Thermometer Cardboard or Styrofoam lid Nested Styrofoam cups Reaction occurs in solution.

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Ocean water contains 3.5% NaCl by mass. How much salt is in 467 g of seawater?

When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter.In the laboratory a general chemistry student finds that when 9.01 g of K2SO4(s) are dissolved in 112.40 g of water, the temperature of the solution drops from 23.35 to 20.44 °C.The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.88 J/°C.Based on the student's observation, calculate the enthalpy of dissolution of K2SO4(s) in kJ/mol.Assume the specific heat of the solution is equal to the specific heat of water.

In an experiment, 30.0 g of metal is heated to 98.0°C and then quickly transferred to 50.0 g of water in a calorimeter at 27.0°C. The heat capacity of the calorimeter with the water is 211 J/°C. The final temperature comes to 32.5°C. What is the approximate specific heat capacity of the metal? [C>(water) = 4.18 J/(g · °C)] 0.591 J/(g · °C) b. 29.5 J/(g · °C) 0.540 J/(g · °C) d. 0.140 J/(g · °C) e. 83.0 J/(g · °C) a. c.

When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. Thermometer Cardboard or In the laboratory a general chemistry student finds that when 1.17 g of KOH(s) are dissolved in 106.20 g of water, the temperature of the solution increases from 24.57 to 27.36 °C. Styrofoam lid The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.78 J/°C. - Nested Styrofoam cups Based on the student's observation, calculate the enthalpy of dissolution of KOH(s) in kJ/mol. Reaction occurs in Assume the specific heat of the solution is equal to the specific heat of water. solution. ΔΗ, dissolution kJ/mol ookC Cangage Lang

In the following experiment, a coffee-cup calorimeter containing 100 g of H20 is used. The initial temperature of the calorimeter is 23.0 °C. If 4 g of CaClzis added to the calorimeter, what will be the final temperature of the solution in the calorimeter? Assume that the heat capacity of the solution is 4.18 J/g°C, and that the heat capacity of the calorimeter is negligible. The heat of dissolution AHsolin of CaCl2 is -82.8 kJ/mol. Enter your answer numerically in terms of °C.