• Consider disposing of 2 liter 18 Molar solution of sulfuric acid by pouring it down...
• Consider disposing of 2 liter 18 Molar solution of sulfuric acid by pouring it down the drain the faucet running. If the regulations required that any material put down the drain must have a pH greater than 2.0 and less than 12.5 in order to protect the aquatic environment and the bacteria in the local wastewater treatment plant not to mention the pipe in the sewerage system. There is two options to dispose of the acid safe and quickly:
a-Dilution
b-Neutralization to Na2SO4 and H2O with NaOH.
1- Find the pH of the of the concentrated H2SO4
2- Find the volume to which the 2L of H2SO4 would have to be diluted in order to raise the pH to 2.1.
3- Calculate the quantity of NaOH needed to neutralize the 2 liter 18
Molar solution of sulfuric acid.
Homework Answers
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• Consider disposing of 2 liter 18 Molar solution of sulfuric
acid by pouring it down...
IV. Heat of reaction of a weak acid with weak base Total mass of solution Final temp. of solution...
need help
IV. Heat of reaction of a weak acid with weak base Total mass of solution Final temp. of solution Initial temp. of solutions AT Water AH reaction 40 9 29 C 22"C Calculation: Heat of reaction per mole water formed Moles of water formed AH reaction per mole H,O formed Calculation Heat of dissociation of weak acid and weak base AH dissociation (per mole)- Calculation: [AH Dissociation- AH reaction -AH Neutralization (from II)] IV. Enthalpy of Neutralization of...
Balance the equation for the reaction observed: _ Cu(s) + HNO3(aq) → Cu(NO3)2(aq) +_ NO2(g) + H2O(1) 3. Add 40 mL...
Balance the equation for the reaction observed: _ Cu(s) + HNO3(aq) → Cu(NO3)2(aq) +_ NO2(g) + H2O(1) 3. Add 40 mL of 3.0 M NaOH (sodium hydroxide) to the solution in your beaker. Write the balanced equation for the reaction observed: 4. Add 2-3 boiling chips to your beaker and carefully heat the solution, while stirring with a stirring rod, just to the boiling point. (Do NOT boil. Have a low flame and keep the beaker well above the flame.)...
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2....
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCl stock solution. In your response to this question, be very specific about the quantities of stock solution and deionized water to be used in the dilution and the...
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq)...
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq) + NaOH(aq) HCl(aq) + Ca(OH)2(aq) K2SO4(aq) + Hg2(NO3)2(aq) NaNO3(aq) + NH4Cl(aq) 16. Which of the following is a precipitation reaction? Zn(s) + 2 AgNO3(aq) 2 Ag(s) + Zn(NO3)2(aq) NaCl(aq) + LiI(aq) NaI(aq) + LiCl(aq) 2 KI(aq) + Hg2(NO3)2(aq) Hg2I2(s) + 2 KNO3(aq) HI(aq) + NaOH(aq) NaI(aq) + H2O(l) None of these are precipitation reactions. 17. Which...
John Hogan Quiz 4 LSU Chemistry 1202. Please go into detail on how each answer is obtained as this will be used as a stu...
John Hogan Quiz 4 LSU Chemistry 1202. Please go into detail on
how each answer is obtained as this will be used as a study guide.
I will make sure to upvote.
We were unable to transcribe this image3. + -10 points 0/100 Submissions Used My Notes If pOH = 5 which of the choices is correct? a) [OH-] = 1.00e-02 M 0 b) pH = 9 c) [OH] = 1.40e-08 M d) [H+] = 1.00e-05 M e) (H+] =...
I really just need all the equations, please and thank you. MATERIALS: cene nitric acid, HNO,...
I really just need all the equations, please and thank you.
MATERIALS: cene nitric acid, HNO, 3.0M sodium hydroxide, NaOH 6.0 M sulfuric acid, H2SO4 zine metal DI water PROCEDURE: Make sure you record detailed observations after almost every step. You will also need to write the balanced chemical equations for almost every step. Make sure you answer any questions associated with a step 1. Weigh approximately 0.5 g of copper metal and record the weight. Place the copper in...
Titration: Acids and Bases 2. How can you determine which acid is diprotic? 3. using the...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
3. If 15.0 mL of 0.125 M phosphoric acid is titrated with 0.100 M NaOH, what...
3. If 15.0 mL of 0.125 M phosphoric acid is titrated with 0.100 M NaOH, what volume of the titrant (in mL) must be added to completely neutralize the acid? Show all of your work (including the chemical equation). (1 point) Post-lab Questions: Experiment #9: Acid-Base Titrations Student Learning Objectives : Students will gain practice with the accurate preparation of solutions. Students will perform acid-base titrations and prepare titration curves. Students will identify strong and weak acids by the shapes...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is to learn how to use a separatory funnel to extract a single component away from other compounds in solution. To do so, we will apply the principles of solubility and acid-base behavior you’re seeing in class. One of the compounds is neutral in the acid-base sense. It has no ability to either donate or accept a proton from an aqueous solution, and will remain...
need help
IV. Heat of reaction of a weak acid with weak base Total mass of solution Final temp. of solution Initial temp. of solutions AT Water AH reaction 40 9 29 C 22"C Calculation: Heat of reaction per mole water formed Moles of water formed AH reaction per mole H,O formed Calculation Heat of dissociation of weak acid and weak base AH dissociation (per mole)- Calculation: [AH Dissociation- AH reaction -AH Neutralization (from II)] IV. Enthalpy of Neutralization of...
Balance the equation for the reaction observed: _ Cu(s) + HNO3(aq) → Cu(NO3)2(aq) +_ NO2(g) + H2O(1) 3. Add 40 mL of 3.0 M NaOH (sodium hydroxide) to the solution in your beaker. Write the balanced equation for the reaction observed: 4. Add 2-3 boiling chips to your beaker and carefully heat the solution, while stirring with a stirring rod, just to the boiling point. (Do NOT boil. Have a low flame and keep the beaker well above the flame.)...
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCl stock solution. In your response to this question, be very specific about the quantities of stock solution and deionized water to be used in the dilution and the...
John Hogan Quiz 4 LSU Chemistry 1202. Please go into detail on
how each answer is obtained as this will be used as a study guide.
I will make sure to upvote.
We were unable to transcribe this image3. + -10 points 0/100 Submissions Used My Notes If pOH = 5 which of the choices is correct? a) [OH-] = 1.00e-02 M 0 b) pH = 9 c) [OH] = 1.40e-08 M d) [H+] = 1.00e-05 M e) (H+] =...
I really just need all the equations, please and thank you.
MATERIALS: cene nitric acid, HNO, 3.0M sodium hydroxide, NaOH 6.0 M sulfuric acid, H2SO4 zine metal DI water PROCEDURE: Make sure you record detailed observations after almost every step. You will also need to write the balanced chemical equations for almost every step. Make sure you answer any questions associated with a step 1. Weigh approximately 0.5 g of copper metal and record the weight. Place the copper in...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
3. If 15.0 mL of 0.125 M phosphoric acid is titrated with 0.100 M NaOH, what volume of the titrant (in mL) must be added to completely neutralize the acid? Show all of your work (including the chemical equation). (1 point) Post-lab Questions: Experiment #9: Acid-Base Titrations Student Learning Objectives : Students will gain practice with the accurate preparation of solutions. Students will perform acid-base titrations and prepare titration curves. Students will identify strong and weak acids by the shapes...
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