Chemistry Chemistry Practice Problems Solutions Library

Constant-Pressure Calorimetry Solutions Library

Access 49 Constant-Pressure Calorimetry video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Constant-Pressure Calorimetry learn videos.

Browse Solutions

49 solutions

Constant-Pressure Calorimetry

Q. In the following experiment, a coffee-cup calorimeter containing 100 mL of H2O is used. The initial temperature of the calorimeter is 23.0 °C. If 8...

Solved • Jul 2, 2020

Constant-Pressure Calorimetry

Q. A calorimeter contains 35.0 mL of water at 14.0 °C. When 1.40 g of X (a substance with a molar mass of 43.0 g/mol) is added, it dissolves via the r...

Solved • Jul 2, 2020

Constant-Pressure Calorimetry

Q. A total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 129 g of solution. The reaction cau...

Solved • Jul 2, 2020

Constant-Pressure Calorimetry

Q. When 0.243 g of Mg metal is combined with enough HCl to make 100 mL of solution in a constant-pressure calorimeter, the following reaction occurs:M...

Solved • Jun 30, 2020

Constant-Pressure Calorimetry

Q. Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation: CO2 (s) → CO2 (g). When dry...

Solved • Jun 25, 2020

Constant-Pressure Calorimetry

Q. Under constant pressure conditions, a 107 g block of metal at 125°C is added to a mixture of 120 g of water and 22 g of ice at 0°C. As a result, th...

Solved • Dec 19, 2019

Constant-Pressure Calorimetry

Q. Under constant pressure conditions, a 107 g block of metal at 125°C is added to a mixture of 120 g of water and 22 g of ice at 0°C. As a result, th...

Solved • Dec 19, 2019

Constant-Pressure Calorimetry

Q. A coffee cup calorimeter is used to determine ∆H for the following neutralization reaction:KOH(aq) + HCl(aq) → H2O(l) + KCl(aq)When 100. mL of 0.50...

Solved • Nov 29, 2019

Constant-Pressure Calorimetry

Q. A 100.0-mL sample of 0.662 M KOH is mixed with a 100.0-mL sample of 0.662 M HNO3 in a coffee cup calorimeter. If both solutions were initially at 3...

Solved • Oct 25, 2019

Constant-Pressure Calorimetry

Q. Which of the following is true if an exothermic reaction occurs out in a coffee-cup calorimeter?A. ΔH of the reactants is lower than ΔH of the prod...

Solved • Oct 9, 2019

Constant-Pressure Calorimetry

Q. The addition of hydrochloric acid to a silver nitrate solution precipitates silver chloride according to the reaction:AgNO3(aq) + HCl(aq) → AgCl(s)...

Solved • Nov 12, 2018

Constant-Pressure Calorimetry

Q. Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the equation: CO2(s) → CO2(g). When dry ice is adde...

Solved • Nov 12, 2018

Constant-Pressure Calorimetry

Q. Manganese reacts with hydrochloric acid to produce manganese(II) chloride and hydrogen gas.Mn(s) + 2 HCl(aq) → MnCl2(aq) + H2(g)When 0.630 g Mn is ...

Solved • Nov 12, 2018

Constant-Pressure Calorimetry

Q. A coffee-cup calorimeter contains 150.0 g of water at 25.2 oC . A 123.0-g block of copper metal is heated to 100.4 oC by putting it in a beaker of ...

Solved • Oct 31, 2018

Constant-Pressure Calorimetry

Q. A coffee-cup calorimeter contains 150.0 g of water at 25.2 oC . A 123.0-g block of copper metal is heated to 100.4 oC by putting it in a beaker of ...

Solved • Oct 31, 2018

Constant-Pressure Calorimetry

Q. A coffee-cup calorimeter contains 150.0 g of water at 25.2 oC . A 123.0-g block of copper metal is heated to 100.4 oC by putting it in a beaker of ...

Solved • Oct 31, 2018

Constant-Pressure Calorimetry

Q. A sample of a hydrocarbon is combusted completely in O2(g) to produce 24.01 g CO2(g), 4.917 g H2O(g), and 342 kJ of heat.What is the mass of the hy...

Solved • Oct 31, 2018

Constant-Pressure Calorimetry

Q. When a 6.50-g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter (the following Figure), the temperature ri...

Solved • Oct 31, 2018

Constant-Pressure Calorimetry

Q. When a 4.25-g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter, the temperature drops from 22.0 oC to 16.9...

Solved • Oct 31, 2018

Constant-Pressure Calorimetry

Q. When a 4.25-g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter, the temperature drops from 22.0 oC to 16.9...

Solved • Oct 31, 2018

Constant-Pressure Calorimetry

Q. A sample of nickel is heated to 99.8°C and placed in a coffeecup calorimeter containing 150.0 g water at 23.5°C. After the metal cools, the final t...

Solved • Oct 19, 2018

Constant-Pressure Calorimetry

Q. If the 3.21 g of NH 4NO3 in Example 5.6 were dissolved in 100.0 g of water under the same conditions, how much would the temperature change? Explai...

Solved • Oct 16, 2018

Constant-Pressure Calorimetry

Q. The addition of 3.15 g of Ba(OH) 2∙8H2O to a solution of 1.52 g of NH 4SCN in 100 g of water in a calorimeter caused the temperature to fall by 3.1...

Solved • Oct 16, 2018

Constant-Pressure Calorimetry

Q. Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter (Figure 5.12) at 22.4°C causes the temperature to rise to 25.8°C. What is the app...

Solved • Oct 16, 2018

Constant-Pressure Calorimetry

Q. A 0.500 g sample of KCl is added to 50.0 g of water in a calorimeter (Figure 5.12). If the temperature decreases by 1.05°C, what is the approximate...

Solved • Oct 16, 2018

Constant-Pressure Calorimetry

Q. If a reaction produces 1.506 kJ of heat, which is trapped in 30.0 g of water initially at 26.5°C in a calorimeter like that in Figure 5.12, what is...

Solved • Oct 16, 2018

Constant-Pressure Calorimetry

Q. Diluting sulfuric acid with water is highly exothermic:H2SO4(l)     H2O ⟶ H2SO4(aq) + heatSuppose you carry out the dilution in a calorimeter. The ...

Solved • Oct 15, 2018

Constant-Pressure Calorimetry

Q. A 455-g piece of copper tubing is heated to 89.5°C and placed in an insulated vessel containing 159 g of water at 22.8°C. Assuming no loss of water...

Solved • Oct 15, 2018

Constant-Pressure Calorimetry

Q. In the laboratory a "coffee cup " calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or t...

Solved • Sep 27, 2018

Constant-Pressure Calorimetry

Q. A 35 gram sample of copper (Csp(Cu) = 0 685 J/(g°C) is placed in a constant-pressure calorimeter containing 100 g of water that just stopped boilin...

Solved • Sep 24, 2018

Constant-Pressure Calorimetry

Q. The heat of vaporization of water is 40.66 kJ/mol. How much heat is absorbed when 2.04 g of water boils at atmospheric pressure? 

Solved • Aug 14, 2018

Constant-Pressure Calorimetry

Q. A 15.99 g sample of metal heated in a test tube submerged in 100.00°C water. It was then placed directly into a coffee cup calorimeter holding 51.9...

Solved • Aug 13, 2018

Constant-Pressure Calorimetry

Q. Enter your answer in the provided box.A 25.95-g sample of methanol at 35.6 °C is added to a 38.65-g sample of ethanol at 24.7 °C in a constant-pres...

Solved • Aug 9, 2018

Constant-Pressure Calorimetry

Q. An ice cube of mass 8.5 g is added to a cup of coffee, whose temperature is 85 °C and which contains 130 g of liquid. Assume the specific heat capa...

Solved • Jul 30, 2018

Constant-Pressure Calorimetry

Q. When a solid dissolves in water, heat may be evolved or absorbed. The  heat of dissolution (dissolving) can be determined using a coffee cup calori...

Solved • Jul 18, 2018

Constant-Pressure Calorimetry

Q. When a 8.00-g sample of RbBr is dissolved in water in a calorimeter that has a total heat capacity of 4.816 kJ • K-1, the temperature decreases by ...

Solved • Jul 16, 2018

Constant-Pressure Calorimetry

Q. In a constant-pressure calorimeter, 70.0 mL of 0.840 M H2S04 was added to 70.0 mL of 0.460 M NaOH. The reaction caused the temperature of the solut...

Solved • Jul 16, 2018

Constant-Pressure Calorimetry

Q. When a 6.50-g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter, the temperature rises from 21.6°C to 37.8...

Solved • Jul 10, 2018

Constant-Pressure Calorimetry

Q. In the following experiment, a coffee-cup calorimeter containing 100 mL of H 2O is used. The initial temperature of the calorimeter is 23.0°C. If 9...

Solved • Jul 5, 2018

Constant-Pressure Calorimetry

Q. Suppose you place 0.0300 g of magnesium chips in a coffee-cup calorimeter and then add 100 0 ml. of 1.00 M HCl. The reaction that occurs isMg(s) + ...

Solved • May 21, 2018

Constant-Pressure Calorimetry

Q. A calorimeter was used to measure the heat change when an ionic compound dissolves in water. The final mass of the contents of the calorimeter was ...

Solved • May 4, 2018

Constant-Pressure Calorimetry

Q. 5.00 moles of an ideal gas are contained in a cylinder with a constant external pressure of 1.00 atm and at a temperature of 593 K by a movable, fr...

Solved • Feb 21, 2018

Constant-Pressure Calorimetry

Q. A coffee-cup calorimeter of the type shown in Figure 5.17 contains 150.0 g of water at 25.1°C. A 121.0-g block of copper metal is heated to 100.4°C...

Solved • Jul 14, 2016

Constant-Pressure Calorimetry

Q. A coffee-cup calorimeter of the type shown in Figure 5.17 contains 150.0 g of water at 25.1°C. A 121.0-g block of copper metal is heated to 100.4°C...

Solved • Jul 14, 2016

Constant-Pressure Calorimetry

Q. A coffee-cup calorimeter of the type shown in Figure 5.17 contains 150.0 g of water at 25.1°C. A 121.0-g block of copper metal is heated to 100.4°C...

Solved • Jul 14, 2016

Constant-Pressure Calorimetry

Q. A coffee-cup calorimeter of the type shown in Figure 5.17 contains 150.0 g of water at 25.1°C. A 121.0-g block of copper metal is heated to 100.4°C...

Solved • Jul 14, 2016

Constant-Pressure Calorimetry

Q. When a 9.55-g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter (Figure 5.17), the temperature rises from ...

Solved • Jul 13, 2016

Constant-Pressure Calorimetry

Q. A 100.0 mL sample of 0.200 M aqueous hydrochloric acid is added to 100.0 mL of 0.200 M aqueous ammonia in a calorimeter whose heat capacity is negl...

Solved • Feb 12, 2016

Constant-Pressure Calorimetry

Q. A total of 2.25 moles of a compound are allowed to react with water in a foam coffee cup and the reaction produces 83.1 g of solution. The addition...

Solved • Feb 12, 2016