- Which ot thefallowing aqueDos. Soluhens has Hhe lowestcsmoh 0.18-n ka O DS O. 12 M...
2:12 al LTE Question 22 of 32 Submit A solution has a hydroxide-ion concentration of 0.18 M. What is its pH? A) 0.74 B) 13.26 C) 5.56 D) 0.18 2:12 al LTE Question 23 of 32 Submit Which one of the following correctly shows the equilibrium for the weak base quinoline, C.H.N? A) CEH,N (aq) + 2 H20 (1) = CH NH2* (aq) + 2 OH- (aq) B) C3H7N (aq) + H20 (1) = CH NH+ (aq) + OH- (aq)...
Consider 0.10 M solutions following acids: HF, Ka = 6.8x10-4 HIO, K2 = 2.3x10-11 HC7H502, Ka = 6.3x10-5 HCOOH, K = 1.8x10-4 Which of the following statements is true? HC7H5O2 has the lowest pH and the largest percent dissociation. HF has the highest pH and the largest percent dissociation. HCOOH has the lowest pH and the largest percent dissociation. HIO has the highest pH and the smallest percent dissociation. HF has the lowest pH and HIO has the largest percent...
How many ml of o.12 M H2SO4 are required to neutralize exactly half of the OH- ions present in 540ml of 0.18 N NaOH
QUESTION 12 Based on the acid dissociation constants (K2) given, which of these acids is the strongest? O H2PO4 - (Ka = 6.3 x 10-8) O NH4+ (Ka = 6.3 x 10-10) O CH3COOH (Kq = 1.7 x 10-5) O HNO2 (Ka = 5.1 x 10-4) O HCO3- (Ka = 5.0 x 10-11)
pleaseee solve quickly it s urgent!!!!!
EEN 311-Electronic Circuits ll (3 eredíįs)-Final Exam fferential amplifier biased with a basic current source rollowing parameters: Voo-Va 12 V. RD 8 ka, and 5. (20 points) Consider the di The circuit has the param Vi - 650 mv, Vov 50 mV, and R 10 k2. The transistors are matched and have: Va=80 V 几 Von Ro &K 오, DGI + VDD REF Q4 THE DE CEER Vss Determine: a) the reference current IREF...
Which reaction has this k expression? K = [N,02] (O2)?[N] O 2NO+02 2 NO2 ON,O4 = 2 NO O2 NO2 + 2NO+ 02 O 2N2 + O2 = 2N,0 2N,0 = 2N, + 0, ON,O4 = N2 + 20, ONO2 + N,0 – 3NO
1. Calculate pH and % ionization of 0.25 M Naco (Ka (HCO2H) 1.8 x 10") 2- Calculate the pH of: a) 0.35 M HNO b) 0.15 M Sr(O)2 c) 0.08 M Ba(CIO4)2 3- Calculate the pH of 0.375 L buffer solution made of a 0.18 M Acetic acid HC2H:02(Ka 1.8x 10) and a 0.134 M Potassium acetate KC2Hs02 (do not use more than 3 digits beyond the decimal point) a) before adding anything b) after adding 0.010 mol Ba(OH)2 c)...
A Fyansis turbine oKin undey a bead o has a ohcel dia ot .om at the entrance nd 0m at exut The vane angle, at the entrance 8 o and guide blade angle fs IS he watey at ézt tear without shocK and withouょ anytangenhal veloci y" velo ity of flow l the Yunncy constant. lecding the etfeot of dratt tube and losses in g yunney passages, delermine the speed ot ohee n ermioute and vane angle" at and
22. Which of these aqueous solutions has the lowest pH? O 0.100 M NaOH O 0.100 M Na3 N O 0.100 M Na2O o all of these solutions have the same pH due to the leveling effect O these all are solutions of weak bases, so Kb values are needed in order to decide
22. Which of these aqueous solutions has the lowest pH? O 0.100 M NaOH O 0.100 M Na3 N O 0.100 M Na2O o all of...
HOCL Ka value in textbook 4.0x10^-8
My courses / SC/CHEM1001 M, N, O, P - Chemical Dynamic mework Assignments / Assignment 5: Aqueous lonic Equilid Consider a 1.0 L buffer containing 0.110 mol L' 1 HOCI and 0.096 mol L- OCI. What is the pH of the solution after adding 2.5 x 10-3 mol of NaOH? Express your answer to 2 decimal places. You have 5 attempts at this question. Remember you can find KA and/or Kg values in your...