please explain 6. Which of the following solutions would you expect to have the largest number...
Which one of the following aqueous solutions would you expect to have the largest conductance: (a) 0.050 M NaCl, (b) 0.050 M Na2SO4, or (c) 0.050 M Na3PO4? Explain your reasoning.
4. Which of the following water solutions would you expect to have the highest boiling point? a) 0.2 m C2H602 b) 0.1 m CaCl2 c) 0.2 m NaOH d) 0.05 m Na2SO.4 e) 0.15 m NaCI
1. Determine the number of moles of reagent in the following solutions: a. 25.00 mL of 0.10 M acetic acid b. 5.55 mL of 0.092 M NaOH C. 0.50 mL of 0.087 M HCI 2. A buffer solution contains 0.120 M acetic acid and 0.150 M sodium acetate. a. How many moles of acetic acid and of sodium acetate are present in 50.0 mL of solution? b. If we add 5.55 mL of 0.092 M NaOH to the solution in...
3. The following titrations are all at their equivalence points. Rank the solutions from highest to lowest pH at the equivalence point and explain your reasoning. a. 20.00 mL of 0.10 M NaOH + 10.00 mL of 0.20 M acetic acid b. 20.00 mL of 0.10 M NaOH + 10.00 mL of 0.20 M chloroacetic acid c. 10.00 mL of 0.20 M NaOH + 20.00 mL of 0.10 M HCI
A37. Which one of the following coordination complexes would you expect to have the largest formation constant? (en is the bidentate ligand ethane-1,2- diamine, H2NCH2CH2NH2) 3+ (A) ICo(eno (B) ICo(en)o2 (C) [Co(NH3)6 (D) [Co(NH3)6l2+ (E) [Co(NH3)4] + 3+ Questions continue on next page
Determine the pH of each of the following solutions. Ka acetic acid is 1.8*10^-5. Kb ammonia is 1.76*10^-5 Part A. 0.20 M NH4Cl Part B. 0.19 M NaC2H3O2 Part C. 0.12 M NaCl Thank you!
Which one of the following solutions will have the greatest concentration of hydroxide ions?(a) 0.100 M magnesium hydroxide suspension(b) 0.300 M ammonia(c) 0.100 M calcium hydroxide(d) 0.100 M hydrochloric acid(e) 0.300 M potassium hydroxide
Which of the following compounds would you expect to have the lowest Rf value on a silica gel TLC plate developed with dichloromethane? O A. Naphthalene O B. Phenyl acetate OC Butyric acid QUESTION 3 Which of the following compounds would you expect to have the highest Rf value on a silica gel TLC plate developed with dichloromethane? O A 2-octanone O B. Acetic acid C. 1-butanol OD. decane E. acetaldehyde
Could you please explain in detail how to do these questions? Thank you in advance. --- (3 points) Which of the following should have the highest conductivity? a. 3.0 M NaCl b. 2.4 M CaCl2 c. 3.2 M NH4NO3 d. 2.1 M Na3PO4 (2 points) You have an aqueous solution containing lead(II), sodium, iron(III), and potassium ions. You need to devise a way to separate the ions from one another. Which of the following statements is NOT correct regarding your...
1. Which of the following make a buffer solution? (circle all the correct answers) a. 0.1 M HCl and 0.1 M NaCl b. 0.1 M HF and 0.075 M KF C. 0.15 M Pentanoic acid and 0.15 M sodium pentanoate d. 0.1 M NaOH and 0.1 M HCI e. 0.1 M acetic acid and 0.00001 sodium acetate 2. Which of the following could make buffer systems when mixed together? (circle the correct answers) a. 0.10 M acetic acid and 0.05...