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- If 55 mg of lead(II) sulfate is placed in 250 mL of pure water, does all of it dissolve? If not, how much dissolves?Find the [H2L*] concentration in a 0.005 M leucine hydrochloride aqueous solution (H2L* ), H2L", Ka, = 4.70 x 10-3, Kaz = 1.80 x 10-10 O a. 22.2x10 M O b.0.004M Oc. 1.5x104 M O d. 4.8x10 M2
- P UTF-8 Chapter 12 Solutions-20 x+ s.content.blackboardcdn.com/5b19550b0b538/10621560?X-Blackboard-Expiration3164905200001 neet.docx Edits will not be automatically saved. Save now amond A 14 三 三 三兰 7. What is the molarity of a solution when 2.0 L. of a 6.0 M HCI solution is added to water so that the final volume is 6.0 L? (5 pts) 8. When placed in cach of the following, indicate if a red blood cell will Becrenati (4 ptsb. Calculate the molar concentration of the malonic acid if 38.17 mL of 0.315 M potassium hy- Calculate the mass percent concentration of malonic acid using the molar concentration cal- droxide was required to neutralize 25.0 mL of malonic acid to a phenolphthalein end point. с. culated in part b and assuming the density of the solution is 1.01 g/ml. lo ba Citric acid (abbreviated H,Cit) is a triprotic acid, so 3 moles of hydroxide ions are required per mole of citric acid for complete neutralization. Write the balanced chemical equation for the reaction of citric acid with sodium hydroxide. (Note that citrate ion is actually a polyatomic ion with carbon, hydrogen, and oxygen atoms and an overall charge of -3. For now, express citrate ion as Cit.) a. ele booald sh w h Jf 36.10 mL of 0.223 M NaOH is used to neutralize a 0.515 g sample of citric acid, what is the molar mass of the acid?A 17.5 mL sample of an acetic acid (CH3CO2H) solution required 29.6 mL of 0.250 M NaOH for neutralization. The concentration of acetic acid was __________ M.
- A solution contains a mixture of Na2CO3 and NaOH. Using phenolphthalein indicator 25 mL of mixture required 19.5 mL of 0.995 M HCl for the endpoint. With methyl orange, 25 mL of solution required 25 mL of the same HCl for the endpoint. Calculate grams per liter of Na2CO3 in the mixture. a. 23 b. 36 c. 78 d. 1110 Chem101 Postlab Quiz 11: BIOL 122 - Int x + -> A app.101edu.co Apps Canvas MYACU to Chem101 Q Quizlet O Khan Academy E Google Docs YouTube Question 5 of 5 A 20.0 mL solution of NaOH is neutralized with 35.0 mL of 0.200 M HBr. What is the concentration of the original NaOH solution? M 1 6. 7 +/- MacBook Pro esc 888 %23 %24 % & 2 4 7 R P Q W Y tab J K caps lock > V M shift 3. 2. 4,Each 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
- How many mL of 0.779 M HNO3 are needed to dissolve 5.15 g of BaCO3? esc 1 F1 AAB 2 Q *** F2 W # 3 80 F3 E $ 4 000 000 F4 2HNO3(aq) + BaCO3(s) Ba(NO3)2(aq) + H₂O(l) + CO₂(g) R Cengage Learning | Cengage Technical Support % er oo 5 F5 MacBook Pro T A 6 F6 & 7 Y F7 mL * DII U F8 8 DO 9 11.10 M Acetic acid 0.900 M Sodium acetate [H30*1 (M) Solution (mL) |(mL) 1 8.00 2.00 8.71e-5M 2 7.00 3.00 5.13e-5M 6.00 4.00 3.24e-5M 4 5.00 5.00 2.17e-5 5 4.00 6.00 1.45e-5M 6. 3.00 7.00 9.31e-6M 7 2.00 8.00 1.00 9.00 00form whan lo0.0ml of 4.0xl0 MgC(NQ); -4 My(NG)2 l00,0ml of 2.0 x10"M Na OH ? "M #14.Will a ppt. ù added to -4