One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate solution. Any chloride anions in solution will combine with the silver cations to produce bright white silver chloride precipitate.   Suppose an EPA chemist tests a 250.mL sample of groundwater known to be contaminated with iron(III) chloride, which would react with silver nitrate solution like this: FeCl3 (aq) + 3AgNO3 (aq) → 3AgCl (s) + FeNO33 (aq)The chemist adds 86.0m M silver nitrate solution to the sample until silver chloride stops forming. He then washes, dries, and weighs the precipitate. He finds he has collected 7.5mg of silver chloride.   Calculate the concentration of iron(III) chloride contaminant in the original groundwater sample. Be sure your answer has the correct number of significant digits.

Q: Write a condensed molecular formula fpr 3-methyl-4-ethylonane

A: The name would be 3-methyl-4-ethylnonane. And the structure of 3-methyl-4-ethylnonane is given…

Q: What volume of oxygen is needed at 21.7 ∘C∘C and 1.350 atmatm  to completely react with 54.69 gg of…

A:

Q: The pressure of 5.0 L of gas increases from 1.50 atm to 1240 mm Hg. What is the final volume of the…

A:

Q: 3. H₂(g) + (1/2)O2(g) →H₂O(g)

A: Bond energies:  H-H = 436 KJ/mol  O=O  = 498 KJ/mol  O-H = 464 KJ/mol  First we will make the…

Q: calculate the mass percent of 2.67 g KCI dissolved in 52.1 g H20

A:

Q: Using the data in the tables and Coulomb's law, calculate the energy change for this reaction (per…

A: We have ask here to calculate energy change for the reaction of  Ca(g)  + S(s)  -----> CaS(g)  By…

Q: If the molar solubility of CaF2 at 35 Celsius is 1.24x 10-3 mol/L, what is ksp at this temperature?

A:

Q: Hydrogen peroxide solutions typically are sold at concentrations of 5.00% (v/v) with water as the…

A:

Q: Calculate the number of moles of water in a solution that contains 16 g NaOH in 320 mL water. (a)…

A: Given: Density of water = 0.99 g/cm3 Molar mass of water = 18 g/mol

Q: Part 4. H NMR Unknown. Propose a structure that is consistent with the data provided and write your…

A:

Q: How many grams of sodium hydroxide (M.W=40g/mol) are needed to prepare 4.62 liters of a 7 M…

A:

Q: What do you expect to happen to the solubility of any solute as temperature is increased in a…

A: Solubility is defined as the amount of solute dissolves in a given amount of solvent at a particular…

Q: 3- Select the single best answer. The compound PO is a Brønsted acid. O a Brønsted base. Oboth a…

A:

Q: 4. Rank the following reactions in terms of rate for an SN2 reaction (1 reactions not possible? Br…

A:

Q: I mix 10.0 ml. of CaCl2 0.10 F with 10.0 mL. of Na2SO4 0.10 F, what % of the CaSO that forms…

A:

Q: 1. Write the electron configurations, both long (long) and Noble gas (NG), and orbital diagrams (OD)…

A: Electron are filled by following three rule Aufbau principle Hunds rule of maximum multiplicity…

Q: Draw the structure of the product obtained when this amine is treated with excess iodomethane and…

A:

Q: 11 Using molarity to Calculate the volume in milliliters of a 3.84M sodium nitrate solution that…

A:

Q: When a 23.2 ml sample of a 0.440 M aqueous hydrocyanic acid solution is titrated with a 0.361 M…

A: we have to calculate the pH

Q: 8.25 From what alkene was the following 1,2-diol made, and what method was used, epoxide hydrolysis…

A: As there are multiple questions asked, so as per the guidelines, only first question will be…

Q: What mass (g) of MgCl2 is required to make 58 mL of 0.41 M MgCl2 (aq) solution

A:

Q: Draw the structure(s) of the major organic product(s) of the following reaction. or Dilute aqueous…

A:

Q: A solution is composed of what and what

A:

Q: In each group below, which has the least polar bonds? SiCl4, PCI 3, SCI2 NCI3, PC|3, AsCl 3 Sketch…

A: Since you have asked multiple questions with sub-parts, we will solve first question for you. To get…

Q: Draw the Lewis structure of CH3CCH and then choose the appropriate set of hybridization states for…

A:

Q: 1) MCPBA 2) H/ CH₂CH₂OH Br./CH,SH H₂C 1) 03 2) Na₂SO -CH3 1) RCO,H 2) NaOCH3

A: We have to give the major products of the given reactions. Introduction: Bromination reaction,…

Q: H3C CI -*NEN ? H3C A H2O в H3PO2 C H3PO4 D H₂SO4

A: The reaction of hypophosphorous acid is treated with diazonium salts is a type of reaction in which…

Q: The standard cell potential E0 for the cell reaction:     Zn + Cu2+       à      Zn2+  + Cu   is…

A: Given :-  Zn + Cu2+ → Zn2+ + Cu  E°cell = 1.100 V  [Zn2+] = 0.01 M  [Cu2+] = 1.0 M  To calculate :-…

Q: EXP                        [NO]-1/m                        [H2] .1M               initial rate/ ms-1…

A:

Q: A solution contains only these ions: mercury (I), lead (II), copper (II), bismuth (III), nickel…

A: Given Ions: Hg(I), Pb(II), Cu(II), Bi(III), Ni(II), Zn(II), Ba(II), Ca(II) To Prepare: A flow chart…

Q: Which atom has the most exothermic electron affinity? O CI Ga O AI O Sr

A: we have to select the atom which has most exothermic electron affinity

Q: Complete the table below for the following neutral isotope: 38 90 Sr passas # of protons =========…

A: 38Sr90 Atomic mass (A) = 90 Atomic number (Z) = 38 We know that,  for neutral atom, Atomic…

Q: Calculate the minimum pH needed to precipitate Mn(OH)2 so completely that the concentration of Mn2+…

A:

Q: Heterolytic reactions involve A) bond-breaking where each of the fragments retains one of the…

A: We need to choose the correct statement regarding Heterolysis. We have 4 options about Heterolysis.…

Q: Part A 120 In→? +1e 0 49 Express your answer as an isotope. 0 ΑΣΦ A chemical reaction does not occur…

A: In nuclear reactions , charge and mass is conserved. That means total charge and total mass on left…

Q: ΔΗ° = ? QUESTION 9 Using Hess's Law and the equations (1)-(3) below calculate AH at 25°C for coal…

A: Dear student since you have posted multiple questions we will solve only first question for you if…

Q: c) 4p³ AS 7. Explain briefly why each set of the following is not a possible set of quantum numbers…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Acetic acid (HC,H,O,) is an important ingredient of vinegar. A sample of 50.0 mL of a commercial…

A:

Q: A mole of perfect monoatomic gas is expanded adiabatically and reversibly from 1 bar and 300K to 0.1…

A: Here we need to calculate the entropy change of adiabatic reversible expansion. The pressure is…

Q: 5. Hint: There is one nitrogen in this compound. Hint 2: Beware of duplicate groups! 4 50 4000 s…

A: Given is, all SPECTRA of unknown compund. Asking the structure of compund?

Q: potassium chloride lead(II) nitrate The percent yield for the reaction is 87.2%. How many grams of…

A: Limiting reagent is one which get consumed firstly in the reaction. Limiting reagent decides the…

Q: OE n= QUESTION 20 Calculate the energy of a photon emitted when an electron in a hydrogen atom…

A:

Q: What is the molarity of a solution that was prepared by dissolving 16 g of sodium hydroxide in 320…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter.     Mole is…

Q: A sample of sucrose was burned in a calorimeter, and 41,600 joules of heat energy were released.…

A: Energy can neither be created nor be destroyed. Thus, heat released from sample of sucrose is…

Q: The following compound is OH meso chiral achiral but not meso Save for Later

A: Meso compounds : are those compounds which have more than one chiral centre & have a plane of…

Q: taj! A JESTION 22 hydrogen molecules have an average speed 0.25 time en molecules because the…

A: Here we have to use Dalton's law of partial pressure. P(total) = P1 +P2 + P3 +......+ Pn , where P1…

Q: Which atom as the smallest radius? O Na O Mg O Ar OK O Ca

A: Given :- Symbol of atoms :- Na, Mg, Ar, K, Ca  To determine :- atom with smallest radius

Q: Using the figure below, calculate the minimum mass of potassium nitrate required to form a saturated…

A: First we need to find the solubility of potassium nitrate at 20°C.  Using they solubility and given…

Q: A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2+ MnO₂ (s)…

A: Given,[H+] = 3.73M [Cr2+] = 1.43M [Mn2+] = 4.21M [Cr3+] = 3.05 M

Q: Кон H₂504 OR OH E

A: