Using the equation 2S2O3^2-(aq)+I2->S4O6^2-(aq)+2 I^-(aq), determine the number of moles of I^- formed from 2 moles of I2.

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Q: What is the percent by mass (%m/m) concentration of sodium bromide (NaBr) in a solution prepared by…

A: % m/m is defined as  % m/m = mass of solute X 100 / mass of solution  mass of solution = mass of H2O…

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A: A 2.1 M solution of zinc sulfate is prepared by adding goslarite (ZnSO4. 7H2O) in 1.7 L of water.…

Q: Write the formula and balance the following. Barium hydroxide (aq) + Acetic acid (aq)→ Barium…

A: Balanced equation can be defined as  the equation in which atoms of each element are present on both…

Q: Five standard solutions of HBr are prepared by serial dilution in which, at each stage, 10.00 mL is…

A: Molarity is the term which is used to express concentration of the chemical compound in a solution.…

Q: how many moles of AgI will be formed when 75 mL of 0.300 M AgNO3 is completely reacted according to…

A: Stoichiometry involves the calculation of concentration of solutions in the given conditions of…

Q: If we diluted 12.5 mL of a solution to 500 mL, and its molarity is determined to be 0.125. What is…

A: ***Note:- its molarity is determined to be                                0.125 M ( unit is missed…

Q: (Eqn. 3)   1 IO3− + 8 I− + 6 H+ → 3 I3− + 3 H2O    (Eqn. 4)  2S2O32− + I3− → 3I− + S4O62− Multiply…

A: Consider the given equations is as follows; (Eqn. 3)       1 IO3-  +  8 I- +  6 H+  →  3 I3-  +  3…

Q: A solution is made by adding 15.62 g of Ba(OH), to water until the solutions volume is 250.0 mL.…

A: Molarity is defined as moles of solute in one litre of solution. Molarity = moles of solute / volume…

Q: A solution is made by adding 71.2g of NaS to water until the solution volume is 500.0mL. What is the…

A: Given :-  Mass of NaS = 71.2 g  Volume of solution = 500.0 mL  To calculate :-  Molarity of solution…

Q: 1. a) 5.62g of LIOH is dissolved and made up to the mark in a 500.00ml flask. Calculate the molarity…

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Q: One gram of saltpeter (KNO3) is dissolved in two hundred milliliters water. Assume the density of…

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Q: Standardized NaOH (M) 0.4056 Initial volume of buret (mL) 0.29 Volume of vinegar (mL) 10.00…

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Q: Complete this equation: HCl(AQ) +  NaOH(AQ) ➡ Write this equation as unionized; total ionic; net…

A: Ionic equation is an equation in which ions are explicitly shown. Net ionic equation is the chemical…

Q: A useful application of oxalic acid is the removal of rust, Fe2O3.   Fe2O3(s)  +   6 H2C2O4(aq)  →…

A: The balanced reaction taking place is given as, => Fe2O3(s) + 6 H2C2O4(aq) → 2 Fe(C2O4)3(aq)  + 3…

Q: A chemist prepares a solution of potassium chloride (KCI) by measuring out 75.7 mg of KCI into a…

A: Given Mass of kcl = 75.7 mg = 0.0757 g Volume of solution = 100ml = 0.1L

Q: Standardization of a sodium hydroxide solution against potassium hydrogen phthalate (KHP) yielded…

A: The chemical reaction between KHP and NaOH  is given by -                                     KHP…

Q: PART A: Standardization of a Sodium Hydroxide Solution Mass of KHP = 0.2 g Molar mass of KHP =…

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Q: Calculate the number of mmoles of the excess reactant remaining in solution when mixing 125.6 mL of…

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Q: What mass, in grams, of a solution containing 5.00% by mass of potassium iodide, KI, contains 308.00…

A: Given data : % by mass = 5.00 % Mass of KI = 308.00 mg = 0.308 g (1000 mg = 1g)

Q: Calculate the sodium hydroxide (MW = 39.997 g/mole) concentration in units of moles per kilogram of…

A: The solution is as follows:

Q: An aqueous solution of manganese (II) iodide,MnI2,is made by dissolving 21.1 grams of manganese(II)…

A: Weight/Volume percentage = it tells about amount of solute present per 100 mL of solutionWeight of…

Q: The quotient of 12.987g divided by 20.0cm^3

A: Given,12.987 g divided by 20.0 cm3

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Q: In dilutions the amount of solute is held constant, but the volume is changed. Since…

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Q: Use the data below for the concentrated acids and bases. Reagent Concentration %w/w 99.7 29.0 37…

A: we can prepare a  diluted solution from  concentrated stock solution using dilution law

Q: 1) 1 eq HCI ? 2) 1 eq HBr Br CI Br CI Br CI Br CI Br Br CI I II III IV V %3I

A: Given reaction is :    Predict the major product of the reaction = ? Options are :

Q: HCI Mg(OH)2 (aq) (aq) HCl (ag)-Mg(OH)2 (aq) MgCla (aq) + H:O (1) HCI (aq) Mg(OH): (aq) MgCI (aq) +…

A: In a chemical reaction the reactants get converted into the products. The number of moles of the…

Q: 1. What is the concentration of ethanol (C2H6O) solution that was prepared by dissolving 50.500 g of…

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Q: JOH1 Acid/Base 3.45 x 105 3.64 x 1012 1.24 x 10 3 2.57 x 109

A: ★ [H+] = 3.45 × 10-5  pH = - log (3.45 × 10-5) = 4.46  So, It is acid. [OH-] = 10-14/3.45 × 10-5 =…

Q: In her chemistry class, Rachel is preparing a special solution for an experiment that she has to…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: A sample of concentrated hydrochloric acid (HCl) is 37.0 % HCl by mass. Calculate the molarity of…

A: Given:37.0% HCl by mass density is 1.18 g/ml formula : Molarity (M)= (% by mass x 10 x Density…

Q: In dilutions the amount of solute is held constant, but the volume is changed. Since…

A: Initial volume, V1 = 0.50 L Initial concentration, M1 = 1.0 M Volume after dilution, V2 = 1.0 L…

Q: For the chemical reaction…

A: Ionic reaction means ions are participating in reaction.  Given reaction  is in molecular form…

Q: 2 Na2CO3+Pb(OH)4= Pb(CO3)2 + 4 NaOH TOTAL IONIC EQN: net iomice eqn:

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Q: b) A 25 mL of 0.1 M sodium hydroxide, NaOH is reacted with 30 mL of 0.2 M ethanoic acid, CH,COOH to…

A: Determination of no. of mol of NaOH: n=M×V=0.1 mol/L×25×10-3 L=2.5×10-3 mol Determination of no. of…

Q: Determine the concentration of a solution prepared by diluting 25.0 mL of a stock 0.188 M Mg(NO3)2…

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Q: Ingredient Amount Ferrous Sulfate Ascorbic acid 300 mg 10 mg 0.5 mL Orange Syrup Benzoic acid…

A: Answer- Given data- 2.9 g of ascorbic acid.

Q: A chemist prepares a solution of iron(II) bromide FeBr2 by measuring out 224.μmol  of iron(II)…

A: Number of moles of FeBr2 = 224 x 10-6 mol Volume of water = 200 mL = 200 x 10-3 L

Q: 0.10 MHF 020 MHB B 0.10 MHF 0201 HỘI 010 MHF 0.30 MHNO,

A: HF is weam acid.so it dissociated partially.  In presence of strong acid its ionization decreases…

Q: To prepare 50 mL solutions of 0.01 M KMnO4 in water (calculation to prepare chemicals in…

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Q: 2MnO, + 5C,0;+ 16H* 4 4 2MN²+ + 10 CO, + 8H,0 Here, 20 mL of 0.1 M KMNO, is equivalent to

A: Given data : 20 mL of 0.1 M KMnO4

Q: Complete and balance HNO3(aq) + Mg(OH)2(s) -->

A: HNO3 is an example of an acid while Mg(OH)2 is an example for a base.

Q: 25.0 mL of a 7.00 M HCl solution Express your answer with the appropriate units. HA ? Value Mass =…

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Q: How much water (in mL) should you add to 50.0 mL of 0.300 M H2SO4 (aq) to get a solution of 0.130 M…

A: Given: The initial volume, (Va)=50 mL The initial concentration, (Ma)=0.3 M The final volume,…

Q: acetic acid (CH3COOH), known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25…

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