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20. 25.87 mL of aqueous HCl is titrated to endpoint with 28.16 mL of aqueous NaOH....
17. In a compound, oxygen generally has an oxidation number (state) of A) +2 B) +1...
17. In a compound, oxygen generally has an oxidation number (state) of A) +2 B) +1 C) 0 D) -2 18. Acetic acid has a pk, of 4.75. A solution is made to be 0.35 M in acetic acid and 0.20 Min sodium acetate (the sodium salt of the conjugate base). The pH is: A) 4.80 B) 2.81 C) 4.51 D) 4.99 E) 7.00 19. A process has a negative enthalpy change and a positive entropy change. The process is...
21. 13.5 g of NaCl is dissolved in 100.0 g of H20. The boiling point of...
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: Ko = 0.512 °C/m. A) 102.4°C B) 101.2°C C) 104.5°C D) 108.4°C 22. A process has an equilibrium constant K of 2.5 x 10 at 300 K. What is AGⓇ at that temperature? A) 19.5 kJ/mol B) 25 kJ/mol C) -19.5 kJ/mol D) 75 kJ/mol 23. In heterogeneous catalysis,...
21. 13.5 g of NaCl is dissolved in 100.0 g of H20. The boiling point of...
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: Kp = 0.512 °C/m. A) 102.4° C B) 101.2°C C) 104.5°C D) 108.4°C 22. A process has an equilibrium constant K of 2.5 x 10' at 300 K. What is AG° at that temperature? A) 19.5 kJ/mol B) 25 kJ/mol C) -19.5 kJ/mol D) 75 kJ/mol 23. In heterogeneous...
How to convert -9.6J to KJ/mol?? We used 20 ml of hcl and 20 ml of...
How to convert -9.6J to KJ/mol?? We used 20 ml of hcl and 20 ml of naoh. The concentration of both of them was 0.1 M. Hcl= 0.1 M and naoh = 0.1 M
A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of...
A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of 0.300 M HNO3 in a coffee cup calorimeter. If both solutions were initially at 35.0°C and the temperature of the resulting solution was recorded as 37.0°C, determine the DH°rxn (in units of kJ/mol NaOH) for the neutralization reaction between aqueous NaOH and HCl. Assume 1) that no heat is lost to the calorimeter or the surroundings, and 2)that the density(1.00 g/mL) and the specific...
A 48.53 mL volume of 1.00 M HCl was mixed with 47.70 mL of 2.00 M...
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...
Four solutions of unknown NaOH concentration are titrated with solutions of HCl. The following table lists...
Four solutions of unknown NaOH concentration are titrated with solutions of HCl. The following table lists the volume of each unknown NaOH solution, the volume of HCl solution required to reach the equivalence point, and the concentration of each HCl solution. NaOH Volume (mL) HCl Volume (mL) [HCl] (M) 7.00 mL 9.17 mL 0.2099 M 18.00 mL 10.84 mL 0.1111 M 15.00 mL 10.75 mL 0.0489 M 26.00 mL 35.18 mL 0.1421 M Part A: Calculate the concentration (in M)...
TC01E03 25.0 mL of 1.00 M NaOH solution is mixed with 25.0 mL of 1.05 M HCl in an open calorimeter. You can assume v...
TC01E03 25.0 mL of 1.00 M NaOH solution is mixed with 25.0 mL of 1.05 M HCl in an open calorimeter. You can assume volumes of these solutions are additive. The density of the resulting solution is 1.03 g/mL and its heat capacity is 3.90 J/K/g. The temperature of the calorimeter and its contents rose by 6.70 °C. What is the molar enthalpy of reaction for NaOH reacting with HCI? You can neglect the heat capacity of the calorimeter. Select...
7. 33 mL of 3 M HCl is titrated with NaOH to form water and NaCl....
7. 33 mL of 3 M HCl is titrated with NaOH to form water and NaCl. How many moles of NaOH are consumed in this reaction? a. 99 mol b. 0.99 mol c. 0.099 mol d. 9.9 mol e. Data not enough
What is the concentration of an aqueous HCl solution when 25 mL of an aqueous 0.3...
What is the concentration of an aqueous HCl solution when 25 mL of an aqueous 0.3 M NaOH solution is to be used to neutralize 10 mL of the HCL solution? The correct answer is: 0,750 M Please explain step by step how I can calculate this?
17. In a compound, oxygen generally has an oxidation number (state) of A) +2 B) +1 C) 0 D) -2 18. Acetic acid has a pk, of 4.75. A solution is made to be 0.35 M in acetic acid and 0.20 Min sodium acetate (the sodium salt of the conjugate base). The pH is: A) 4.80 B) 2.81 C) 4.51 D) 4.99 E) 7.00 19. A process has a negative enthalpy change and a positive entropy change. The process is...
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: Ko = 0.512 °C/m. A) 102.4°C B) 101.2°C C) 104.5°C D) 108.4°C 22. A process has an equilibrium constant K of 2.5 x 10 at 300 K. What is AGⓇ at that temperature? A) 19.5 kJ/mol B) 25 kJ/mol C) -19.5 kJ/mol D) 75 kJ/mol 23. In heterogeneous catalysis,...
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: Kp = 0.512 °C/m. A) 102.4° C B) 101.2°C C) 104.5°C D) 108.4°C 22. A process has an equilibrium constant K of 2.5 x 10' at 300 K. What is AG° at that temperature? A) 19.5 kJ/mol B) 25 kJ/mol C) -19.5 kJ/mol D) 75 kJ/mol 23. In heterogeneous...
TC01E03 25.0 mL of 1.00 M NaOH solution is mixed with 25.0 mL of 1.05 M HCl in an open calorimeter. You can assume volumes of these solutions are additive. The density of the resulting solution is 1.03 g/mL and its heat capacity is 3.90 J/K/g. The temperature of the calorimeter and its contents rose by 6.70 °C. What is the molar enthalpy of reaction for NaOH reacting with HCI? You can neglect the heat capacity of the calorimeter. Select...
7. 33 mL of 3 M HCl is titrated with NaOH to form water and NaCl. How many moles of NaOH are consumed in this reaction? a. 99 mol b. 0.99 mol c. 0.099 mol d. 9.9 mol e. Data not enough
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