Enthalpy changes in chemical reactions Read through pagos 18-20 in your laboratory manual for information on how to calculate the enthalpy change in a solution. In a calorimetry experiment 5 g of potassium hydroxido is dissolved in 400 mL water in a thermos flask. The temperature increase in the solution is 6.4 "C. The effective mass of the glass in the thermos flask (ma) is 0.040 kg The heat capacity of the solution (C₂) is 4.04 kJkg ¹¹ The heat capacity of the calorimeter (C) is 0.387 kJkg K Remember to enter your answer using the specified number of significant figures, but keep the entire number in your calculator for use in further calculations. Part A-Calculating m, Calculate the total mass of solution in kilograms (m) Give your answer to four significant figures. View Available Hint(a) VAE 3 Submit 4 < 101 > 5 ?
Enthalpy changes in chemical reactions Read through pagos 18-20 in your laboratory manual for information on how to calculate the enthalpy change in a solution. In a calorimetry experiment 5 g of potassium hydroxido is dissolved in 400 mL water in a thermos flask. The temperature increase in the solution is 6.4 "C. The effective mass of the glass in the thermos flask (ma) is 0.040 kg The heat capacity of the solution (C₂) is 4.04 kJkg ¹¹ The heat capacity of the calorimeter (C) is 0.387 kJkg K Remember to enter your answer using the specified number of significant figures, but keep the entire number in your calculator for use in further calculations. Part A-Calculating m, Calculate the total mass of solution in kilograms (m) Give your answer to four significant figures. View Available Hint(a) VAE 3 Submit 4 < 101 > 5 ?
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Enthalpy changes in chemical reactions
Read through pagos 18-20 in your laboratory manual for information on how to calculate the enthalpy change in a solution.
In a calorimetry experiment 5 g of potassium hydroxido is dissolved in 400 ml water in a thermos flask. The temperature increase in the solution is 6.4 "C. The effective mass of the
glass in the thermos flask (moal) is 0.040 kg
The heat capacity of the solution (C₂) is 4.04 kJkg K
The heat capacity of the calorimeter (C) is 0.387 kJkg K
Remember to enter your answer using the specified number of significant figures, but keep the entire number in your calculator for use in further calculations.
Part A-Calculating m,
Calculate the total mass of solution in kilograms (m)
Give your answer to four significant figures.
View Available Hint(a)
EVE ΑΣΦ 9
Submit
5 ?
<1 of 1
kg
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