Tonight to J 005.0 of babbs al DHM AE0.0 to Im 00.E nariw afluze nolautors to (6 points) 0.1 mole of CH3NH2 (Kb = 5 x 10") is mixed with 0.08 mole of HCI and diluted to 1L. What will be the H* concentration? OH= CH3NH2 + H CH3NH3* H
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- 0-25 Nor 1lit of Hcl mixed Ceith OINO somlor Hel, then find Normalibs q folition is A) 0. 16 B) 0.24 C) 0. 32 )) 0.48At 25°C, what are the molar H3ot and OH concentrations in a 0.0360 M CG H; COOH (K, (C,H; COOH)= 6.28 x 10)? M %3D [OH ]- %3D M bo.0360 M HN3 (K, (HN3)= 2.2 x 10 )? 1--HO] C0.240 M hydroxylamine hydrochloride (K, (NH,OH)= 9.09 x 10 )? [1,0*] -[ (OH |-1. Et O 1. CH3MGCI; 2.heat; H3C- 3. dil. HCI H3C = -CH2OH m. NC heat EN Ph OEt N2 n. Rh2(OAc)4 heat p.
- 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 mlEach value represents a different aqueous solution at 25 °C. Classify each solution as acidic, basic, or neutral. Acidic Basic Neutral Answer Bank H]= 1.0 x 10 pll=346 pOl - 541 OH |-26 x 10 pOll =831 pOll = 7.00 o|=98 x 10 " 1-63x 10 pll=10.38 I= 74 x 10 contectua help privecy polisy terma of uas(a) Calculate the percent lonization of 0.00820 M hydrosulfuric acid (K,- 9.5e-08). % lonization - % (b) Calculate the percent lanization of 0.00820 M hydrosulfuric acid in a solution containing 0.0810 M sodium hydrogen sulfate. % lonization = %
- 3 How to Titrate: Lab Techniques Titration Titration Procedures: Add about 100mL of a 0.1 M NAOH solution to a 250mL beaker. 2. Obtain a buret and rinse with about 10 ml of the NaOH solution. 3. Fill the buret with NaOH and record starting volume to the nearest 1m" of a milliliter. 4. Measure out exactly 10.0 ml of HC in a graduated cylinder and add it to a 250mL Erlenmeyer flask along with 1 drop of phenolphthalein indicator. 5. Slowly add the NaOH to the flask with the acid and swirl. Continue adding the base until a color change (faint pink) occurs and remains for at least 10 seconds. This is the endpoint of this neutralization eaction. 6. Read and record the ending volume of NaOH in the buret, 7. Repeat steps 1 through 6 two more times for Trials 2 and 3. 8. Calculate the volume of base added in each trial. 9. Use the volume of base added and the volume of acid added to calculate the molarity of the acid for each trial. 10. Calculate the average molarity of the acid. 11. Calculate…"uonsanh stm The hydroxide ion concentration of an aqueous solution of 0.532 M acetylsalicylic acid (aspirin), HC9H¬O4, is [OH]= M. Submit Answer Retry Entire Group 9 more group attempts remaining Next 10/2 prt sc delete home fg ho 144 num & backspace %3D lock Y hc 3: 00 近1 Settings „l ? 9:57 AM • 97% kzb-vvdv-bir » Grace Dykstra is presenting TAM Mo Fa 2 H the amount of water added was 1000 mL instead. Would t V ז ןיידצל 1oODmL - LoNIcediud Lies solvent) concentrated than the initial KOOL-AID? Examples: Concentration Calculations Part A Determining Concentration from moles and V: (answers: 0.46 mel; 247 mol ; 0.658 ma) 1. Determine the molar concentration when 0.23 mol of sodium sulfate are dissolved in 500ml of water. G: lo00 0.50ol 0.a3 mol 0.50OL 0. a3 mol = 0.4b mol /L mol 0.500 L 1. 2. Determine the concentration when 1.20 moles of sodium hydroxide dissolves into 450 ml of water. 3. Determine the concentration of a Nacl solution if 25.0 g of sodium chloride is dissolved into 650 ml of water. Alyssa Khadija You Grac 22 others
- gA certain aqueous mmonoprotic acid has a percent ionizationn of G575 for a O. S0Z m Soution. Calaulati the acia ionization constant for the acd.- 4 Hom: X 00 4.6 Applied Opt x 0o DESU Calculus X https://app.101edu.co Aktiv Chemistry X + G Consider the re: X G Consider the re: X Consider the reaction of 60.5 mL of 0.310 M NaC7HsO2 with 50.0 mL of 0.245 M HBr. (Ka of HC7HsO2 = 6.3 x 10-5) Question 9.g of 21 With 0.0065 moles of C7HsO2 and 0.0123 moles of HC7H5O₂ in the beaker, what would be the pH of this solution after the reaction goes to completion? Q Search 21 a (368) Optimizati X A to 4 www.desu.edu X G - 1 7 Su Delaware State x+ 4 5 +/- 2 3 8 6 9 0 Submit X C 4x x 100 O 0 8:31 PM 3/26/2023elp 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 + + F12