Question

In: Chemistry

Which of the following ions will act as a weak base in water?


Which of the following ions will act as a weak base in water?


HS-

ClO-

F-

NO2-

All of the above will act as a weak base in water.

Solutions

Expert Solution



Related Solutions

Write the reaction of the following weak base with water. (1 point each)             A. methyamine          ...
Write the reaction of the following weak base with water. (1 point each)             A. methyamine                       B. pyridine 2. What is the pH of 0.055 M aniline? Construct and use an ICE table. Use appropriate assumption. Check assumptions and if an assumption is false redo the problem without the false assumption. (3 points)-
The pain killer morphine is a weak base when added to water. The K b is...
The pain killer morphine is a weak base when added to water. The K b is 1.6  × 10 –6. What is the pOH of a 3.97  × 10 –3 M solution of morphine? a. 4.10 b. 9.90 c. 5.80 d. 9.75 e. none of these
A one molar solution of the weak base methylamine, CH3NH2 is diluted with water until the...
A one molar solution of the weak base methylamine, CH3NH2 is diluted with water until the concentration is ½ molar. Which of the following statements are correct for this process? 1. [OH-] / [CH3NH3+] remains constant. 2. pH decreases. 3. The % ionization decreases. A. 1 only B. 3 only C. 1 & 2 only D. 2 only E. 2 & 3 only
A weak base B (neutral charge) is dissolved in water at a concentration of 0.500 M....
A weak base B (neutral charge) is dissolved in water at a concentration of 0.500 M. The concentration of the resulting ions is 0.170. What is the numerical value of Kb? The answer should be written to 4 decimal places and correct within +/-0.0020. Don't forget that [B] is going to be less than 0.500 M.
1. Which of the following ions will react with water in a hydrolysis reaction: Na+, Ca2+,...
1. Which of the following ions will react with water in a hydrolysis reaction: Na+, Ca2+, Cu2+, Zn2+, F-, SO32-, Br- 2. For those ions in question 1 that undergo hydrolysis, write net ionic equations for the hydrolysis reaction(s). 3. The Ka for HCN is 4.9x10-10. What is the value of Kb for CN-? Write the 2 equilibrium expressions and chemical equations. 4. What are the conjugate base and conjugate acid of H2PO4-? Look up the different Ka values for...
Which of the following anions act as weak bases in solution? Check all that apply. Br−...
Which of the following anions act as weak bases in solution? Check all that apply. Br− NO2− CN− Cl−
1.An inorganic base dissociates in water into ?a)one or more hydrogen ions and one or more...
1.An inorganic base dissociates in water into ?a)one or more hydrogen ions and one or more anions b)one or more hydroxide ions and one or more reactions c)one or more hydrogen ions and one or more captions d)one or more hydroxide ions and one or more anions                                                                                                                                 2.An atom becomes a cation by? a)accepting electrons into its outermost electron shell b)giving up electrons from its outermost electron shell c)donating protons to another atom d)accepting proton from another atom                                                                                                                                                                                                                              3.An atom...
Explain which of the following indicators would be appropriate for a weak acid-strong base titration?
  1) A pH meter is standardized at what three pHs?   2) The initial pH of the acetic acid-NaOH titration curve was _________. 3) Explain which of the following indicators would be appropriate for a weak acid-strong base titration? Indicator pH of color change Bromcresol green 3.8 - 5.4 Bromothymol blue 6.0 - 7.6 Phenolphthalein 8.0 - 9.6
1. The degree to which a weak base dissociates is given by the base-ionization constant, Kb....
1. The degree to which a weak base dissociates is given by the base-ionization constant, Kb. For the generic weak base, B B(aq)+H2O(l)⇌BH+(aq)+OH−(aq) this constant is given by Kb=[BH+][OH−][B] Strong bases will have a higher Kb value. Similarly, strong bases will have a higher percent ionization value. Percent ionization=[OH−] equilibrium[B] initial×100% Strong bases, for which Kb is very large, ionize completely (100%). For weak bases, the percent ionization changes with concentration. The more dilute the solution, the greater the percent...
Which would be the best emulsifier of soil if soft water (no Ca2+ ions, Mg2+ ions,...
Which would be the best emulsifier of soil if soft water (no Ca2+ ions, Mg2+ ions, and so on) were used? a. A soap. b. A detergent. c. Both would be about the same. Explain your answer: ________________________________
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT