15. The alcohol content in a 10.0 g sample of blood from a driver required 4.23 mL of 0.07654 M K2Cr2O7 for titration. If the current legal limit of blood alcohol content is 0.08 percent by mass, should the driver be prosecuted for drunken driving? What is the percent alcohol in the driver’s blood?  3C2H5OH (ethanol) + 2K2Cr2O7 + 8H2SO4 → 3HC2H3O2 + 2Cr2(SO4)3 + 2K2SO4 + 11H2O

Q: For this pr H2 SO4(aq) + 2 N2OH(aq) → Na2 SO4(aq) + 2H20(1) A titration is performed on a sample…

A: Answer: Strength of the H2SO4 = 1.81 M

Q: A 40.0 mL sample of 0.25 M KOH is added to 60.0 mL of 0.15 M Ba(OH)2. What is the molar…

A: From KOH , The balanced chemical equation involved = KOH ⇔ K+1 + OH-1Given in the question Molarity…

Q: A second analyst was attempting to determine the percent KHP in an unknown sample, similar to that…

A: From the given molarity of NaOH, number of moles of NaOH can be calculated followed by the…

Q: The titration of 25.00 mL of an unknown concentration of H2SO4 solution requires 32.28 mL of 0.420 M…

A: Given, reaction : H2SO4(aq)+2LiOH(aq)→Li2SO4(aq)+2H2O(l)

Q: 25.0mL of a 0.515 M K2S solution is mixed with 30.0 mL of 0.833 M HNO3 acid solution to give the…

A:

Q: A student added 0.20 mol of NaI and 0.40 mol of KI to 3 L of water to create an aqueous solution.…

A: We need to just write the equation and by applying simple unitary method we can get the answer.

Q: An aqueous sample of 25.0 mL H2SO4 is neutralized by the addition of 28.9 mL of 0.203 M KOH.  What…

A: The neutralisation reaction taking place will be 2 KOH + H2SO4 ------> K2SO4 + 2 H2O

Q: A10g sample of a substance of unknown molar mass requires 40 mL of standard solution for titration;…

A: Volume of the standard solution = 40 ml or 0.04 L Let the concentration (M) of the standard solution…

Q: 3K¿CO3 +2H3PO4(a9)→ 2K3PO4(09) +3CO2(4) +3H2O«) If it required 97.65 ml of H;PO4 solution, with an…

A: Molarity is the ratio of number of moles of solute to the volume of solution (in L)  Number of moles…

Q: 3. Traces of heavy metals, such as Cu* and Pb²*, in water bodies can be separated through fractional…

A:

Q: What volume of 0.145 MM HClO4HClO4 solution is needed to neutralize 49.00 mLmL of 8.55×10−2 MM…

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

Q: In the analysis of a sample for KH2PO4 content, a sample weighing 0.3994 g required 18.28 mL of…

A: Given - Mass of sample = 0.3994 g Volume of KOH solution = 18.28 mL Concentration of KOH solution =…

Q: A solution of citric acid (H3CgH;O,) with a known concentration of 0.200 M H;C,H;O, is titrated with…

A: Given,Concentration of citric acid = 0.200 MVolume of Citric Acid = 25 mLMoles of citric acid =…

Q: The concentration of oxalate ion (C20,2-) in a sample can be determined by titration with a solution…

A: Given: Volume of oxalate solution = 30.00 mL Volume of MnO4- solution = 21.93 mL Molarity of MnO4-…

Q: The active ingredient in a certain toilet cleaner that claims to ‘remove lime scale and rust’ is…

A: Given data,Initial concentration of toilet cleaner (HCl)=1.12 mol/LVolume of toilet cleaner…

Q: b. What mass of MgSO4•7H2O will need to be weighed to prepare this solution'? c. A student preparing…

A: Since the concentration of the solution is for subpart b is not given, we'll do the subpart c.…

Q: The titration of 25.00 mL of an unknown concentration of H2SO4 solution requires 44.58 mL of 0.42 M…

A:

Q: A 0.411 g sample of potassium hydrogen phthalate, KHC8H4O4 (molar mass = 204.22g/mol), is dissolved…

A: Calculation of moles for KHC8H4O4:

Q: 2.5 g sample of impure mercury (II) oxide, in excess of potassium iodide is being resolved. HgO(k)…

A:

Q: The titration of 36.7 mL of sulfuric acid solution requires 43.2 mL of standard 0.236 M sodium…

A:

Q: If 26.6 mLmL of AgNO3AgNO3 is needed to precipitate all the Cl−Cl− ions in a 0.755-mgmg sample of…

A: Given data contains, Volume of AgNO3 is 26.6 mL=0.0266 L. Mass of KCl=0.755 mg=0.000755 g

Q: A solution of tartaric acid (H2C,H,O6) with a known concentration of 0.155 M H2C,H,O6 is titrated…

A: Given, H2C4H6O6+2NaOH→Na2C4H4O6+2H2OK. Concentration of tartaric acid = 0.155M Concentration of…

Q: You have a solution of 1M BaCl2 and another of 1M Hg2(NO3)2. If you poured them together, what…

A: 1. In double displacement reaction,  cation of one species easily replaces cation of another species…

Q: 10.00 mL of a solution containing Fe³+ is titrated with 17.26 mL of 0.1033 M TiCl2 according to the…

A: The molarity of a solution is the ratio between the number of moles of solute to the solution…

Q: A 18.0 mL sample of vinegar, which is an aqueous solution of acetic acid, CH3COOH, requires 15.5 mL…

A:

Q: A solution with a total volume of 1000.0 mL contains 37.1g Mg(N03)2. If you remove 40.0 mL of this…

A: Please see the attached images for answer

Q: 3. Traces of heavy metals, such as Cu²* and Pb²*, in water bodies can be separated through…

A: To calculate the initial molar concentration of heavy metal ions present in the sample.

Q: The alcohol content in a 10.0-g sample of blood from a driver required 4.23 mL of 0.07654 M K2Cr2O7…

A: The number of moles of solute to the volume of solution in liters is known as molarity.

Q: What volume of 0,955 mol·dm–3 HCl solution (in mL or cm3), is required to titrate 2,152 g of Na2CO3…

A:

Q: 10.00-mL sample of dilute sulfuric acid, H2SO4, is titrated with 0.2540 M NaOH solution and 35.20 mL…

A:

Q: 8. When 38.0 mL of 0.1250 M H2SO4 is added to 100 mL of a solution of PbI2, a precipitate of PBSO4…

A: Given:  Volume of H2SO4  solution = 38 ml  Molarity of H2SO4 solution = 0.1250 M  Volume of PbI2…

Q: Calcium oxalate is a sparingly soluble ionic compound composed of calcium ions (Ca2+) and oxalate…

A:

Q: What is the cobalt(II) ion concentration in a solution prepared by mixing 351 mL of 0.372 M…

A:

Q: If 25.2 mL of AgNO3 is needed to precipitate all the Cl ions in a 0.775-mg sample of KCI (forming…

A:

Q: 2MnO4- (aq) + 5H2C2O4(aq) + 6H+(aq) → 2Mn+2(aq) + 10CO2(g) + 8H2O(l) In a titration experiment, a…

A: The titration of potassium permanganate with oxalic acid is a redox reaction. In this titration the…

Q: Titration of 0.2121 g of pure Na2C2O4 (134.00 g/mol) required 43.31 mL of KMnO4. What is the molar…

A: From the given reaction, it is clear that 2 mol of MnO4- reacts with 5 moles of C2O42-to form the…

Q: The titration of 0.314 g of potassium hydrogen phthalate (KHP) requires 13.16 mL of a NaOH solution.…

A: we need to calculate moles of NaOH for the titration of 0.314 g of KHP

Q: A local company sent you their green alternative for window cleaner to be tested for percent (w/v)…

A: Titration question

Q: In a common medical laboratory determination of the concentration of free chloride ion in blood…

A: Given: Concentration of Hg(NO3)2 = 8.35×10-4 M Volume of Hg(NO3)2 = 1.64 mL Volume of Cl- = 0.25 mL…

Q: A 1.000-g sample containing K2C204 (166.21 g/mol) is titrated with 40.00 mL of .0200 M KMnO4 in acid…

A:

Q: 4. A solution of 2.5 x 104M NazS2O3 was used for the iodometric titration of an ozone- containing…

A:

Q: 18. In a common medical laboratory determination of the concentration of free chloride ion in blood…

A: Given that:  Molarity of Hg(NO3)2 = 0.000825M Volume = 1.46ml = 1.46ml×1L/1000ml = 0.00146L Molarity…

Q: The alcohol content in a 10.0 g sample of blood from a driver required 4.23 mL of 0.07654 M K2Cr2O7…

A: The volume of K2Cr2O7 = 4.23 mL                                       = 4.23×10-3 L Molarity of…

Q: A solution was prepared by dissolving 5.76 g of KCI .MgCl2. 6H2O (277.761 g/mol) in sufficient water…

A: GivenAmount of KCl.MgCl2.6H2O = 5.76 gMolar Mass of KCl.MgCl2.6H2O = 277.761 g/molVolume of solution…

Q: The chloride ion content of a 250.0-mL seawater sample was titrated against 0.1102 M silver nitrate,…

A: Given values: Volume of chloride solution= 250 mL Molarity of silver nitrate = 0.1102 M Volume used…

Q: The vanadium in a sample of ore is converted to VO2+. The VO2+ ion issubsequently titrated with…

A:

Q: If 26.2 mLmL of AgNO3AgNO3 is needed to precipitate all the Cl−Cl− ions in a 0.780-mgmg sample of…

A: Number of moles of KCl can be calculated as shown below:

Q: What volume of 0.100 M Na3PO4  is required to precipitate all the lead(II) ions from 400.0 mL of…

A:

Q: A standard solution of AgNO3 was prepared by dissolving 7.107 g of pure AgNO3 in sufficient water to…

A:

Q: A 0.4040-g sample of potassium hydrogen phthalate, KHC8H4O4 (molar mass = 204.44 g/mol) is dissolved…

A: The molar concentration is the molarity of solution which is defined as a number of moles of solute…