Write the net ionic equation, including phases, that corresponds to the reaction Pb(ClO4)2(aq)+Na2CO3(aq)⟶PbCO3(s)+2NaClO4(aq)Pb(ClO4)2(aq)+Na2CO3(aq)⟶PbCO3(s)+2NaClO4(aq) net ionic equation:
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Write the net ionic equation, including phases, that corresponds to the reaction
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- What is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? Assume that the contribution of protons from H2SO4H2SO4 is near 100%. Ba(OH)2(aq)+H2SO4(aq)→3. The concentration of acetylsalicylic acid, C9H8O4, in aspirin tablets is determined by hydrolyzing it to the salicylate ion, C7H5O3-, and de¬termining its concentration spectrofluorometrically. A stock standard solution is prepared by weighing 0.0774 g of salicylic acid, C7H6O3, into a 1-L volumetric flask and diluting to volume. A set of calibration standards is prepared by pipeting 0, 2.00, 4.00, 6.00, 8.00, and 10.00 mL of the stock solution into separate 100-mL volumetric flasks that contain 2.00 mL of 4 M NaOH and diluting to volume. Fluorescence is measured at an emission wavelength of 400 nm using an excitation wavelength of 310 nm with results shown in the following table. (a) Why is the excitation wavelength (310 nm) shorter than the emission wavelength (400 nm)?(b) How is the emission wavelength isolated from the excitation wavelength in a fluorescence instrument?(Eqn. 3) 1 IO3− + 8 I− + 6 H+ → 3 I3− + 3 H2O (Eqn. 4) 2S2O32− + I3− → 3I− + S4O62− Multiply Equation 4 by the molar ratio 3/1 and add to Equation 3 to obtain the overall balanced net ionic equation for the standardization of Na2S2O3. 1. What is the molar ratio of S2O32− to IO3− in the overall net ionic equation?
- For the chemical reaction 2HBr(aq)+Ba(OH)2(aq)⟶2H2O(l)+BaBr2(aq)2HBr(aq)+Ba(OH)2(aq)⟶2H2O(l)+BaBr2(aq) write the net ionic equation, including the phases.To measure the concentration of an aqueous solution ofH2O2, an analytical chemist adds strong acid to a 39.00g sample of the solution and titrates it to the endpoint with 49.5mL of 0.2700M potassium permanganate KMnO4 solution. The balanced chemical equation for the reaction is: 6H+(aq) + 5H2O2(aq) + 2MnO−4(aq) -> 5O2(g) + 2Mn2+(aq) 8H2O(l) What kind of reaction is this? If you said this was a precipitation reaction, enter the chemical formula of the precipitate. If you said this was an acid-base reaction, enter the chemical formula of the reactant that is acting as the base. If you said this was a redox reaction, enter the chemical symbol of the element that is oxidized. Calculate the mass percent of H2O2 in the sample. Be sure your answer has the correct number of significant digits.Aqueous sodium hypochlorite (NaOCl, household bleach) is a strong oxidizing agent that reacts with chromite ion [Cr(OH)4-] in basic aqueous solution to yield chromate ion CrO42- and chloride ion Cl-. The next ionic equation is: ClO- (aq) + Cr(OH)4-(aq) ------> CrO42-(aq) + Cl-(aq) Unbalanced Balance the equation using the method described in section 1 of the Electrochemistry chapter.
- The amount of chloride anion in a solution can be determined via titration with AgNO3(aq), according to the following balanced chemical equation: Cl–(aq) + AgNO3(aq) → AgCl(s) + NO3–(aq) What is the molarity of NaCl in a solution if titration of 15.00 mL of the solution with 0.2488 M AgNO3 requires 19.13 mL of the AgNO3 solution to reach the endpoint.When HCl(aq) is added to calclum carbonate solid, carbon dioxide gas, liquid water and aqueous calcium chloride form: Caco,(s) + 2HCI(aq) - CO,lg) • CaCl, faq) + H,00) This reaction is used by geologists to confirm the presence of limestone (calcium carbonate) in minerals. In this experiment you are trying to determine the effect of concentration of HCI(aq) on the production of carbon dioxide. a. Based upon the information above, come up with a question to answer. (C:1) You can use the following equipment to answer this question: calcium carbonate chips, 1.90 molL HClaq). pH meter (measures hydrogen ion concentration), beaker, timer, apparatus to measure gas produced b. Based upon the equipment provided above, design a procedure to answer your question. Ensure you provide numbered steps. (1:3, C:2) c. Hypothesize an answer to your question. (I:1) Give reasons for your hypothesis. Ensure you are very specific. (A3) From your experiment, you collect the following data: Reactant…Consider the following reactions. reaction (1): Mn2+(aq) + SO42−(aq) → MnO4−(aq) + H2SO3(aq) in acidic solutionreaction (2): Ni2+(aq) + Cl−(aq) → Ni(s) + ClO−(aq) in basic solutionreaction (3): Mo(s) + N2O4(g) → MoO2(s) + HNO2(aq) in acidic solutionreaction (4): MnO4−(aq) + Cl−(aq) → MnO2(s) + ClO3−(aq) in basic solution Balance each equation under the specified conditions. (Include states-of-matter under the given conditions in your answer.)reaction (1): Mn2+(aq) + SO42−(aq) → MnO4−(aq) + H2SO3(aq) in acidic solution chemPad Help reaction (2): Ni2+(aq) + Cl−(aq) → Ni(s) + ClO−(aq) in basic solution chemPad Help reaction (3): Mo(s) + N2O4(g) → MoO2(s) + HNO2(aq) in acidic solution chemPad Help reaction (4): MnO4−(aq) + Cl−(aq) → MnO2(s) + ClO3−(aq) in basic solution chemPad Help
- students are asked to prepare solid lead(II) chloride (PbCl2) according to the following balanced equation. if there is excess Pb(NO3)2 solution then how many grams of lead (II) chloride can be made from 100.0mL of a .425 M sodium chloride solution? Pb(NO3)2 (aq)+ 2NaCl (aq)= PbCl2 (s) +2NaNO3(aq)CHEMISTRY (Please write the complete solution legibly. No long explanation needed. Answer in 2 decimal places. Box the final answer.) Solve the following: a. Calculate the molarity of hydrochloric acid, HCl, in a solution if 25.00 mL of that solution required35.74 mL of 0.1522 M KOH for complete neutralization in a titration. (Answer: 0.2176 M) b. When aqueous solutions of Ba(NO3)2 and K2SO4 are mixed, a precipitate of BaSO4 results. Writethe molecular, ionic, and net ionic equation for this double displacement reaction. c. 8.50 g of copper (II) sulfate pentahydrate, CuSO4∙5H2O, is dissolved in 250 mL of solution. Whatis the molarity of this solution?Complete the followin reaction by providing the products formed. Then balance the reaction and write the molecular reaction and the total and net ionic reactions. The reaction is: Zn(NO3)2 (aq) + Ba(OH)2 (aq) ---> Products.