How to convert -9.6J to KJ/mol?? We used 20 ml of hcl and 20 ml of...
20. 25.87 mL of aqueous HCl is titrated to endpoint with 28.16 mL of aqueous NaOH. The NaOH concentration is 0.1146 M. What is the HCl concentration? A) 0.1146 M B) 0.2292 M C) 0.1247 M D) 0.0624 M 21. 13.5 g of NaCl is dissolved in 100.0 g of H20. The boiling point of the water after the salt is added is The boiling point elevation constant for water: K = 0.512 °C/m. A) 102.4° C B) 101.2°C C)...
Given the following timed data, convert mL 0.04 M NaOH to concentration of HCl, [HCl]t, in 10 mL aliquots of the reaction of t-butyl chloride in isopropanol/water. Then convert [HCl]t to concentration of t-butyl chloride, [RX]t. Using a program such as Microsoft Excel, plot (Scatter Chart) time versus natural log of concentration of t-butyl chloride at time zero over concentration of t-butyl chloride at each time, ln([RX]0/[RX]t). Determine the slope of your plot as instructed in this video. The slope...
15.00 mL of 1.000 M NaOH solution is mixed with 50.00 mL of 1.000 M HCl solution, both at 21.0 °C. Assuming that the density of both of the solutions is 1.00 g/ml, and that the specific heat capacity is 4.18 JK-Ig1, what is the final temperature of the solution? The heat of neutralization of HCl by NaOH is -63.2 kJ/mol.
25.0 mL used of HCl Brand of Antacid: Meijer Cost of Antacid: 3.29 per 160 tablets Concentration of HCl solution, M: 0 939 A Concentration of NaOH solution, M: 0.927M Trial 1 Trial 3 1.147 g Trial 2 1.130 g 27.14 ml 1.1499 40.52 mL 13.40 mL 0.00 mL 13.40 mL 27.14 mL Mass of tablet, g Final buret reading mL Initial buret reading, mL Volume of Titrant, mL Number of moles of HCI added, mol Number of moles of...
if 22.0 mL of water containing 0.030 mol of HCl is mixed with 38.0 mL of water containing 0.030 mol of NaOH in a calorimeter such that the initial tempature of each solution was 27.0 degrees C and the final temperature of the mixture is 35.0 degrees C, how much heat (in kJ) is realeased in the reaction? Assume that the densities of the solutions are 1.00 g/mL.
QUESTION 2 Suppose you have 20 mL of 0.1 M HCl. What will the pH of the solution be after 10 mL of 0.1 M NaOH is added? Report your answer to 2 significant figures (i.e., 2 decimal places). Suppose you have 20 mL of 0.1 M HCl. What will the pH of the solution be after 30 mL of 0.1 M NaOH is added? Report your answer to 2 significant figures (i.e., 2 decimal places).
2. A 49.45 mL volume of 1.00 M HCl was mixed with 49.14 mL of 2.00 M NaOH in a coffee cup calorimeter (with calorimeter constant = 25.1 J/°C) at 21.34 °C. The final temperature of the aqueous solution after the reaction was 29.37 °C. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: e. The enthalpy change (∆H) for the neutralization in kJ/mol HCl ( this should be a negative number) e. The enthalpy...
A 48.53 mL volume of 1.00 M HCl was mixed with 47.70 mL of 2.00 M NaOH in a coffee cup calorimeter (with calorimeter constant = 26.0 J/°C) at 21.43 °C. The final temperature of the aqueous solution after the reaction was 29.71 °C. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The total mass of aqueous solution inside the calorimeter (dsoln = 1.00 g/mL) g b. The change in temperature (∆T) of...
How many mL of 0.75 M HCl will neutralize 20. mL of 1.02 M NaOH?
Question 31 20 pts A 25.55 ml. sample of an HCl solution with an unknown concentration was titrated to equivalence with 41.48 ml. of a 0.4228 M NaOH solution. What is the concentration of the HCl solution? 06864M 0.2604M 3.840 M 1457M