D Question 6 3 pts Which one of the following best describes an aqueous solution of...
Question 5 3 pts Which one of the following best describes an aqueous solution of HCIO,? O salt weak base O strong acid weak acid O strong base
Question 7 3 pts Which of the following best describe an aqueous solution of Ca(NO3)2? O acidic salt O basic salt not a salt O neutral salt
QUESTION 19 A 0.0035 M aqueous solution of a particular compound has pH = 2.46. The compound is a weak base O a weak acid a strong acid a strong base a salt
Number 6. Which one of the following amino acids in aqueous solution will form black precipitate when mixed with hot strong base? Question 5 (2 points) ✓ Saved Which of the following molecule(s) could be one of the twenty amino acids that make up human protein? NH, HN- OH IN CH, HN Question 6 (2 points) Saved Which one of the following amino acid in aqueous solution will form black precipitate when mixed with hot strong base? HN 0 HIN...
Question 3 1 pts Which statement accurately describes what happens in a buffer solution when you add strong acid or strong base? The strong species is converted to weak species by reaction The pH change is smaller than you expect based on the amount of acid or base added Two reactions occurs-first a completion reaction, then an equilibrium reaction All three statements above accurately describe this situation Question 4 Can you create a buffer by mixing HNO3 with KOH? Yes-...
The pH of an aqueous solution of the salt Na SO, (sodium sulfate) will a) be basic (because it is a weak acid-strong base salt) b) be acidic (because it is a strong acid-weak base salt) c) be neutral (because it is a strong acid-strong base salt) d) not be known (because it is a weak acid-weak base salt) e) no correct response
13) A 0.0035 M aqueous solution of a particular compound has pOH 11.54. The compound is a) a weak base b) a weak acid c) a strong base a strong acid e) a salt 14) In basic solution, a) [H30'> [OH] b) [H30 ]- [OH1 [Hs0)< [OH] d) (OH]<7.00 e) [OH] =OM 15) The pH of a 0.63 M aqueous solution of hypobromous acid, HBro, at 25°C is 4.17. What is the value of K for HBro? a2.0 x 10...
6.5 pts D Question 6 What is the pH of a solution at the equivalence point during the titration of a weak base with a strong acid. Explain. HTML Editor Paragraph BIU A-E-I E x x TT12pt 1
D Question 23 4 pts When a 0.100 mol of a pure compound is dissolved in 1.0 L of water, the solution pH changes from 7.00 to 4.24. Which of the following is most likely the identity of the substance? A weak base A neutral salt A weak acid A strong base A strong acid Question 24 4 pts If the hydronium ion concentration, [H30*), in a solution is 5.6x10-10 M, what is the hydroxide ion concentration, [OH"), and the...
(17.2.c.6) Consider how best to prepare one liter of a buffer solution with pH = 10.76 using one of the weak acid/conjugate base systems shown here. Weak Acid Conjugate Base Ka pKa HC2O4- C2O42- 6.4 x 10-5 4.19 H2PO4- HPO42- 6.2 x 10-8 7.21 HCO3- CO32- 4.8 x 10-11 10.32 How many grams of the sodium salt of the weak acid must be combined with how many grams of the sodium salt of its conjugate base, to produce 1.00 L...