Which data point(s) reflect pH = pka? 14 12 10 (iv) PH 6. (iii) (ii) 4. (i) 10 15 20 25 30 35 40 Volume (mL) () and (i) (ii) only O (i) and (iv) O (i) only 5,
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- M 23 (H) Inorganic Analytical Chemistry pard My courses CHEM 23 (H) FS-AY:20-21 Week 4-5: Quantitative Analysis by Gravimetry and Titration Quiz 4 Qu 10 The 500.0-mg sample of impure Na2 CO3 (FM: 105.96) required 22.00 mL of the HCI standard solution (the obtained concentration of HCI from the previous question, problem 5: Titrimetry short answer type) for complete neutralization. ut of 1. Give the balanced chemical equation between the sample, Na2CO3 and the standard, HCI. 2. What is the mass (g) of Na, CO3 in the sample? 3. Calculate the % (w/w) purity of a 500.0-mg sample of impure Na2 CO3 Note: Type your solution here or upload its pic in Jpeg or pdf format. Another option is to send it to me via email (subject: Fam name-Quiz 4) or messenger, privately. Do not forget to box the final answer and write your name. В I 1.Answer as much as you can pleasepowercho01 Duolingo + FHHS 1st Day Goo.. Class WOIK aCarrer exploration Algebra 2 O Art O chem h.pdf Sign- 12 v Helvetica - Tt =三山BI ACID [H*] [OH*] pH РОН BASE NEUTRAL 1X 10-3 IX 10-6 9 12 NEUTRAL 9.5 4.7 2.0 X 10-3 5.0 X 10-11 4.35
- G.149.LEKS X A ALEKS-Allie Fleming - Learn X + wu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-IQUHIQg6bJxmeSyVpHOEB1plef9xyC5Ca9QIFwtxr00buHbeXUZhX-WNTXJ1_nmqsj0g EocTE5oCPLW220suaHKGGrEdkEV2?10... # 3 E O ADVANCED GENERAL CHEMISTRY Using the general properties of equilibrium constants At a certain temperature, the equilibrium constant K for the following reaction is 0.0056: N₂(g) + O₂(g) 2 NO(g) Use this information to complete the following table. Suppose a 18. L reaction vessel is filled with 0.40 mol of NO. What can you say about the composition of the mixture in the vessel at equilibrium? $ V What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits. 2 NO(g) N₂(0)+ O₂(9) What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits. 3 N₂(0)+30₂(0) 6 NO(g) Explanation -- A 59 R F 1/ 48 % Check 5 ■ T G d- ^ Q Search 6 4+ Y H & 7 all fo O There will be very little N₂ and 0₂. O There will be very…(17,18-3,2) Select the most acidic hydrogen in the molecule below.
- For alanine, Ka1=5.1105,Ka2=1.81010 . Calculate the ratios [Z]/[C+] and [Z]/[A+] at pH (a) 2.00. (b) 6.00. (c) 10.50. What is the principal species at each pH?10- Identify the molecular ion in this spectrum and what type of compound is this?. Click on image to enlarge Rel. Abundance ☎ 100. 80.- 60.- 40. 20.- 0 10. 45 -15 (6.6%) b) 46 20. MASS SPECTRUM 31 (100%) c) 47 (%0E) 67 30. m/z 40 (%29) St 46 (21%) 47 (0.5%)(17,18-3,3) Select the most acidic hydrogen in the molecule below.