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- Write 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, POThe pOH of an aqueous solution of 0.515 M phenol (a weak acid), C,H5OH, is Submit Answer Retry Entire Group 9 more group attempts remainingсо 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 Ę
- 70 alll ll ? ..::0E is اجابة قصيرة A solution of Al2 (S04) 3 at a concentration of 0.3 N , What is the volume needed to prepare a solution at a concentration of 0.04 M in a volume of 150 ml of distilled water إجابتك كتب إجابتك. . is73 Al ihe school ey decided to adt sodum carbonae (NaCOJ tohe sampled wster in the school tankin order to restore he sttavalue close to The balanced equartion for the reaction is Na,Co.e) + 2HC (ag - 2Nac (ag • H0()• co; (al 731 Calcuate the mass of sodum cartonate (Na,CO.) required to neutralize each 1 dm' of the sample water 732 Ater the neutralization. the water tasted saty. Give a reason for the saly taste of the water Refer to the equation above.A l.00ml alıquot of fish od was andyud for N using the kieldahl methad: After chqashim, the dishilled ammania colleeted in 10onlof 0:0503 M Hl. The excess Hl requied 28.3 ml of o.124M NgoH for titratin. amount Cale the ofN in the sconle of fish oil as mglm KJE LDAHL METHOD)
- .t to tuasd ssem uL () the The moralify of the souhm The mnany of the sonunon हुर्गज् strongest Type f the IMf fornd in this soution to ·a t o tusad Ssem of mg coH)2 in 300.0g %801.da, at punot seu woynios (alculate. て of water. The oensiy of the finoal ha unthosThe 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:6. How can you prepare: a. 250 ml of 0.25F HCI, if sp. gravity of HCl=1.184 and containing about 37% HCI by weight. b. 250 mL of 0.1M H;SO4, if sp. gravity =1.84 and containing about 96% H2SO4.
- Content OWLV2 | Online teaching and lee X G How many mlof 0.552 M HI are x A cvg.cengagenow.com/ilrn/takeAssignment/takeCXPCompliantActivity.do?locator-assignment-take CHAPTER 4 - STOICHIOMETRY: QUANTITATIVE INFORMATION ABOUT CHEMICAL REACTIONS Page 1 of 3 Next O A saturated solution of zinc hydroxide, Zn(OH)2. has a pH of 8.7. What is the hydronium ion concentration of the solution? Is the solution acidic or basic? Concentration = M The solution is Cengage Learning Cengage Technical Supportapacit d. The purity of KHP standard was taken as 100% when in actual it was not. Clear my choice A 10.00 ml sample of Y(OH)2 was titrated to the stoichiometric point with 14.50 mL of 0.2345 M H2X. The total number of moles of Y(OH)2 is O a. 0.0034 O b. 0.00469 O c. 0.00034 O d. 0.0068 Clear my choiceCalculate the concentration of C,Hg06 in an aqueous solution of 0.0415 M ascorbic acid, H,ÇGH606 2- (aq). [CH6O6° 1 =| M. Submit Answer Retry Entire Group 1 more group attempt remaining