Question 6 7 pts The solutions below are prepared. Which solution is the most acidic? 0.15...
The solutions below are prepared. Which solution is the most basic? Group of answer choices 0.15 M KOH (aq) 0.1 M Mg(OH)2(aq) 0.05 M NH3 (aq) 0.25 M H2SO4 (aq) 0.1 M HCl (aq)
D Question 25 Calculate the pH of a 0.10 M CH3NH,Cl solution. Ky(CH NH) - 4.4x104 5.82 943 Сосоо 4.36 8.18 Question 26 5 pts When a strong acid is added to a strong base in a titration, what is expected at the equivalence point? A acidic solution from the conjugate acid of the strong base A neutral solution with a pH - 7 A acidic solution from the strong acid A basic solution from the strong base A basic...
Then you can start! 3 pts When the following reaction which occurs in acidic solution is balanced, the coefficient of His: Sn + NO2 --> SnO2 + NO 0 04 O 8 012 16 3 pts Sn(s) +2 Ag (aq --> 2Ag (s) + Sn2+, Question 33 How many electrons are transferred in the following oxidation-reduction reaction? (aq) 3 pts Question 30 How do we know a complex ion formed when NH3 reacted with Cult? Aprecipitate formed. We don't know...
Rank the aqueous solutions listed below according to their electrical conductivity. Question List (6 items) (Drag and drop into the appropriate area) 0.10 M CH3NH2 0.15 M CH3OH 0.25 M KOH 0.15 M CaCl2 0.15 M HCI 0.20 M Cu(NO3)2
Which solution below would be considered the most acidic? Group of answer choices 2.9 x 10-4 M HCl 4.5 x 10-5 M HNO3 1.0 x 10-7 M NaCl 1.5 x 10-2 M KOH none of the above
0/2 pts Question 7 Which of the following will form an acidic aqueous solution? CaCl2 KI MgBr2 NaCl FeCla 0/2 pts Incorrect Question 4 The Ka of HBRO is 2.8 x 109 at 298 K. Calculate the pKb of BrO at that temperature. 2.8 x 10-9 5.45 280,000 8.55 3.6x 10-6
Which solution will be the most basic? O 0.10 M NH3 0.10 M KOH O 0.10 M Ca(OH)2 O 0.10 M H20 O All solutions have equal basicity. Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining
7. Which of the following solutions is isotonic (no osmosis) with a 0.30 M NaNO, solution? {hint - Find the osmosis molarity or "osmolarity" = (# ions)M} a) 0.10 M CaCl2 b) 0.30 M glucose c) 0.60 M NaCl d) 0.15 M AICI; e) 0.75 M KCI (n-1 for glucose) 8. If a solution of 0.20 M Mg(NO3)2 is separated from a 0.25 M KCl solution by a membrane that is permeable to water, osmosis will occur. Describe the osmotic...
21:19 Question 7 of 12 Submit Rank the following in order of most acidic to least acidic. Solution X pH = 6.50 Solution Y pOH = 10.30 Solution Z (OH) = 4.2 x 10-9M A) Z > Y>X B) Y > > C)Y>Z>X D) X > Y>Z Question 8 of 12 Submit What is the pH of a 4.5 x 10-M HCIO, solution? 1 4 7 +/- 2 5 8 : 3 6 9 0 x 10
Rank the following 0.83 M solutions from 1 (most acidic) to 8 (most basic). Which solution would be numbered 7? O(a) NH3 O (b) CH3CH2NH, O (c) CH3NH3CI (d) HF (e) KNO: (f) C H5NH Br C (g) KCN (h) Nacio