Homework Clinic

Science Clinic => Chemistry => Topic started by: torybrooks on Nov 18, 2019

Title: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.85 g ...
Post by: torybrooks on Nov 18, 2019

Question 1

Calculate the enthalpy of solution for the dissolution of sodium chloride, NaCl, molar mass = 58.443 g mol-1. When 6.93 g of NaCl is dissolved in a coffee cup calorimeter containing 100.0 mL of water the temperature dropped from 23.5 °C to 22.4 °C. The specific heat of water is 4.184 J g-1 °C-1, and assume the density of the solution is 1.00 g mL-1.
◦ 4.1 kJ mol-1
◦ 3.9 kJ mol-1
◦ -6.4 kJ mol-1
◦ 6.3 kJ mol-1
◦ -2.8 kJ mol-1

Question 2

Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.85 g mol-1. When 1.49 g of LiI is dissolved in a coffee cup calorimeter containing 75.0 mL of water the temperature increased from 23.5 °C to 25.7 °C. The specific heat of water is 4.184 J g-1 °C-1, and assume the density of the solution is 1.00 g mL-1.
◦ -62 kJ mol-1
◦ -76 kJ mol-1
◦ 30 kJ mol-1
◦ 18 kJ mol-1
◦ -39 kJ mol-1

Title: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.85 g ...
Post by: raenoj on Nov 18, 2019

Answer 1

3.9 kJ mol-1

Answer 2

-62 kJ mol-1

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: Justess Lancia on Feb 2, 2021

thank you!

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: chinaza ikeanyanwu on Apr 18, 2021

thank you

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: Akshit Golakiya on Oct 17, 2021

Thank you

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: other account on Jan 28, 2022

thank you

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: Joy Aziz on Jan 29, 2022

thank you

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: Ewen Dawson on Feb 2, 2022

Thank you

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: bobv on Feb 2, 2022

Thank You

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: Grace Hunter on Feb 2, 2022

Thank you

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: Whyamihere on Feb 2, 2022

Thank you

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: Whyamihere on Feb 2, 2022

Thank you

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: Amir Docheshmeh on Feb 2, 2022

ty

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: 623012 Chinguacousy SS on Feb 2, 2022

Thank you

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: 20151071 on Apr 5, 2022

thank you

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: contontu on Apr 20, 2022

Thank You

Title: Re: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.
Post by: tariqrobinson on Jan 26, 2023

Thank you