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- Q1) A sada- Lime Sample is 90% NaoH and 10% CaO• If 3gm is dissolved in 250 ml, what is the tutal normadity of the Selution as abase ? How many milliliters of O.57N H2 S@4 would be requiredd to titrate i00 me of the Solution ? Ans.s ( 0.309 N, 60.59 ml) Q12) How much water that required add to 200 ml HNO, ( densly = 1.285 gm/ml) Contains 46 wt% acid to Convert lo wt% acid solution? Ars. : 919.6 mlThe perecent of ionization of 0.09 M NH3 i (Hint ,K = 0.000018) %3D (Write your answer to 1 d.p e,g 1.2) Answer:Ql is dissolved in 250 ml, what is the tutul normadily of A Sada- Lime Sample is go% NaoH and 10% CaO • If 3gm the Selution as abase ? How many milliliters of O.57 N H2 S4 would be requiresd to titrate 100 me of the Solution ? Ans.s (0.309 N, 60.59 ml)
- 3. Complete neutralization of 10 ml of phosphoric acid solution by NaOH 0.I N in the presence of phenol phthalein until the appearance of purple color (pH, = 9) 11 ml. of NaOH is consumed. (a) What is the concentration of phosphoric acid? (b) Calculate the indicator error. pk2.1 pK. - 7.2 pK - 124elp and Mastering :- 799); ple) to NOV 0 6 Q % 어 F5 Part A pH = Study Area A a solution that is 0.13 M in NH3 and 0.17 M in NH4Cl (Kb (NH3) = 1.76 x 10-5) Express your answer to one decimal place. Submit Asession.masteringchemistry.com Provide Feedback 96 IVE ΑΣΦ C F6 MacBook Air Request Answer & ◄ F7 Home | Tro, Chemistry: A... * DII F8 wwww. ? A M Mastering Chemistry: Reci... F9 W F10 I X QM F11 Review | Constants I P + + F12atWhat is [H30+] in a solution of 0.25 M CH3CO2H and 0.030 M NaCH3CO2? CH3CO,H(aq) + H,0(1) E H30*(aq) + CH3CO,¯(aq) Ka = = 1.8 × 10-5
- Write the expression for the K₂ when HC₂H3O₂ is dissolved in water HC₂H30₂ + H₂O C₂H30₂¹1 + H30+1 ][ Ka [ a. acetic g. sulfurous n. HPO4² u. H₂O [ b. hydrochloric h. hydrosulfuric o. H₂PO4¹ P. CO₂-² -3 v. H₂CO3 W. PO4³ c. phosphoric i. OH-1 ] d. perchloric j. H30+¹ k. SO4² q. HCO3-1 X. HC2H3O2 r. H₂S y. C₂H30₂-1 e. hydrofluoric 1. Mg+2 s. HS-1 t. S-² f. sulfuric m. Cl-1со app.101edu.co Brightspace Walmart-Hiring Ce..... ock Fn Ese + # Et F1 2 a A Z w S P X Alt Which of the following oxides is expected to form the most basic aqueous solution? ॐ 3 E D $ FS R A) Rb₂O F B) In₂O3 C) Al₂O₁ D) SnO₂ E) TeO₂ % JEJE 5 T CL с FO C G F7 B Y Question 18 of 24 H FO & 7 DELL F ★ 8 U 19 J N F10 1 M 9 K O A a L Alt F12 P PrtScr Ctrl E L 7:06 PM WHO 440 4/16/2023 Inserv . Delete Backspace PqUp Num Subm Enter 7 ĘWrite the expression for the K of H2PO;. HPO OH %3D [H2PO;] [HPO H,0*] %3D [H2 PO,] [H3 PO3[H3O*] [H2PO;] K= [H3 PO3][OH] OK= %3D [H, PO
- 68OpenVellumHMAC=defce5f03204e95efa2fcf11b1ecff98#10001 I Review | Constants | Peri Part A E 18.2 50.0 mL of 0.15 M HCHO2 with 80.0 mL of 0.12 M NaCHO2 m Express your answer using two decimal places. • View Available Hint(s) να ΑΣφ pH = Submit Part B 120.0 mL of 0.11 M NH, with 240.0 mL of 0.11 M NH, CI Express your answer using two decimal places. > View Available Hint(s) Πνα ΑΣφ pH = P Pearson right 2022 Pearson Education Inc. All rights reserved. Terms of Use | Privacy Policy I Permissions | Contact Us | f9 f12 4+ DDI &The hydronium ion concentration of an aqueous solution of 0.532 M benzoic acid, C,H5COOH (K, = 6.30×10) is M. Submit Answer Retry Entire Group 9 more group attempts remaining Previous 99+ fg fio h2 prt sc delete hom & * 6 8. backspace %23M Search E Untitle 4 My Dr O (91,37 (50) W Writin (50) Y W The Re O Geniu O Oven O Home A Vita X b Succe + v O 8 https://online.vitalsource.com/reader/books/9781792484490/pageid/76 2. One mole of H+ is always neutralized by . mole of OH-. 67 69 77 85 (continued on next page) Law 93 69 12:21 AM P Type here to search Rain... 3/24/2022