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how do you balance HCl + NH3 ----->?
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- The ascorbic acid, C,H;Os (176.124 g/mmol) content of a bottle of peach juice containing 2.50 L was determined by titration with a standard solution of potassium iodate, KIO3. The KIO; solution was prepared by dissolving 100.4 mg primary standard grade KIO; (214.001 mg/mmol) to a final volume of 250.0 mL. To a 200.00-mL aliquot of the sample, 10 mL of KI, 10 mL of HCl and 5 mL of starch solution were added and subsequently titrated, requiring 18.19 mL of the KIO; titrant. The relevant reactions are given below: KIO; + 5KI + 6H* → 3l2 + 6K* + 3H;0 CH;O, + l2→ CH,O, + 21- + 2H* a. How many millimoles of ascorbic acid is in the titrated sample? b. What is the mass of ascorbic acid per bottle of the peach juice?The following salts were added to a beaker of distilled water: NaCl (NH2)2CO; Ca(NO;)2 Which of the following products will precipitate out of solution? O NH CI O CaCO, FONTHN O O NaCO;Complete the following reaction ia' T-Fe/HCI / AICI Br Br COOH NO,
- coulbonug9 oinihe olni bouogmoOB QU llaa of word Solubility Rules: Water Soluble Compounds EXSube sCHcood) or etosiq 1. Salts of ammonium (NH4*) and Group IA are always soluble. 2. Salts containing nitrate (N03-), acetate (C2H3O2-), or chlorate (CIO3-) ions are always soluble. enoiteo 1ol ooJ 3. Salts of the halides are soluble with the following exception: a. Compound containing Ag*, Hg2*, Pb²* prirdolaw Jon er Es i olnol the exception of: 4. Salts containing the sulfate ion (SO42-) are soluble elgmsx3 a. Compounds containing Ag*, Hg2*, Pb²+, Ca2*, Sr2*, or Ba2+ Water Insoluble Compounds Juloe ent! 1. Salts of the carbonate (CO32-), phosphate (PO43-), chromate (CrO42-), or sulfides (S2-) ions are insoluble with the exception of compound containing group 1A or ammonium cations. 2. Salts containing the hydroxide ion (OH-) are insoluble with the exception of compounds containing group 1A, ammonium cations, or Ba2+. biup Inot luo tneioliteoo belon Soluble means that it dissolves in water…A (aq) + ...B(aq) C(s) + D (aq) ... .. Experimental | Volume of B/ mL Mass of Run precipitate/g 1 1.2 5.40 2 1.4 7.24 1.6 9.02 4 1.8 9.90 2.0 10.86 6. 2.2 10.90 7 2.4 10.88 8 2.6 10.84 9. 2.8 10.86 A series of experiment was performed to determine the mole ratio of a given reaction. 1 mL of 1 Molar A added to nine beakers, then the increasing amount of 1 Molar B added to these beakers. Volume of B and mass of precipitate of C are given in the table below. Find the mole ratios through plotting a graph.app.101edu.cо Question 14 of 15 Submit A solution of phosphoric acid (HPO,) with a known concentration of 0.250 M HAPPO is titrated with a 0.800 | M NaOH solution. How many mL of NaOH are required to reach the third equivalence point with a starting volume of 72.0 mL H,PO, according to the following balanced chemical equation: НРО, + 3 NaOH -> NA PO, + 3 Н.о 4 STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 0.800 6.75 x 104 2 1 0.250 0.0675 22.5 1000 3 67.5 7.50 72.0 0.001 43.2 L HAPPO mol NaOH М НАРРО g NaOH L NaOH mL H,PO, mL NaOH M NaOH g H PO mol HPO, +
- Calculate the pH and concentrations of CH, NH, and CH, NH; in a 0.0363 M methylamine (CH, NH,) solution. The Kp of CH, NH, is 4.47 × 10 1. pH (CH, NH, %3! M [CH, NH;] !!FeCl2 + HNO3----> Fe3+ + ClO4- +NO2 (in acid). Please balance(a) (1) CI AICI (2) HNO₂, H₂SO (3) O (4) Me,S (5) NaBH; H₂O+ एल Draw Your Solution
- Part B: The Nernst Equation: E Zn ZnlCulCu (Prior to adding NH,OH) – 1.104V 1. 1980 E Zn ZnlCul Cu (After adding NH,OH) [Cu"] (From Nernst equation) inal 2. E Za Zn l cu*l Cu T (K) 270.9니 horl- 3. E° Zn Zn*ICu*l cCu (Prior to adding NaOH) Znl Zn²+ [Zn*]; nitial 0111- E Znl ZnlCuCu E Zn Zn* | Cu²t Cu (After adding NaOH) [Zv**Inmal (From Nernst equation) final 1.22E-38 K„, Zn(OH), (Equation 11) dsA 12.63 g sample of calcium ore was dissolved in HCI and gravimetrically analyzed, through the precipitation of calcium into CaC2O4 * H2O The precipitate was filtered. washed, dried, and ignited at 500 degrees C until the weight was constant, giving a final mass of 2.35 grams pure CaCo3 (100.087g /mol) Calculate the % Calcium 140.078g / mol in the sample.Module 8: H X 7087483#/7087483/16/2 % General Chemistry 4th Edition McQuarrie Rock Gallogly Question 25 of 35 - Module 7 Ho X [13] = x10 TOOLS Topic: Week 4 Discussion Resources C Give Up? The amount of I5 (aq) in a solution can be determined by titration with a solution containing a known concentration of S₂O3(aq) (thiosulfate ion). The determination is based on the net ionic equation 2S₂O3(aq) + 13(aq) →SO (aq) +31-(aq) Given that it requires 41.0 mL of 0.450 M Na₂S₂O3(aq) to titrate a 20.0 mL sample of I3 (aq), calculate the molarity of 15 (aq) in the solution. Hint University Science Books presented by Macmillan Learning M Question Source: McQuarrie, Rock, And Gallogly 4e-General Chemistry C C