Alcohol levels in blood can be determined by a redox titration with potassium dichromate according to the balanced equation C2H5OH(aq)+2Cr2O2−7(aq)+16H+(aq)→2CO2(g)+4Cr3+(aq)+11H2O(l) What is the blood alcohol level in mass percent if 8.94 mL of 0.04988 M K2Cr2O7 is required for titration of a 10.005 g sample of blood?

Q: What is the mass in grams of precipitate formed when 250.0 mL of 0.310 M ZnCI, is mixed with excess…

A: Here excess of KOH is given; it means the limiting agent is ZnCl2. So ZnCl2 will decide the mass of…

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Q: the following chemical reaction takes place in aqueous solution: What is the net ionic equation for…

A: Dear student I have given answer to your question in the image format.

Q: A 18.2 ml sample of vinegar (dilute acetic acid, CH3COOH) is titrated and found to react with 91.2…

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Q: The following chemical reaction takes place in aqueous sol 2 FeBr3(aq)+3 (NH,,S(aq) →Fe,S3(5)+6…

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Q: 100.0 mL of an aqueous solution containing 0.250 M KOH(aq) is mixed with 100.0 mL of an aqueous…

A: First of all, we need to write down the balanced chemical.  The molar mass of Fe(OH)3 = 106.87g/mol

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Q: 2 The active agent in many hair bleaches is hydrogen peroxide. The amount of H₂O2 in 13.7-g of hair…

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Q: The following chemical reaction takes place in aqueous solution: CuBr, (aq)+2 NAOH(aq) → Cu…

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Q: 19.71 mL of an aqueous aluminum nitrate, Al(NO3)3 , solution is applied to the top of a column…

A: Molarity of NaOH = 0.2895 M Volume of NaOH = 54.30 mL Determine the moles of NaOH -  Moles of NaOH =…

Q: poslo or yours 2) Balance and write net ionic chemical equations for each of the following…

A: balance and the net ionic equation for each of the following reactions is given below:

Q: what quantity in moles of precipitate will be formed when 82.0 mL of 2.00 M Nal is reacted with…

A: Given that : The volume of NaI = 82.0 mL The molarity of NaI = 2.00 M The volume of Pb(NO3)2 = 100.0…

Q: Suppose you are titrating vinegar, which is an acetic acid solution of unknown concentration, with a…

A: Given  Volume of NaOH  ( V1 )  = 34.71 mL  Molarity of NaOH ( M1 ) =  0.1245 M  Volume of acetic…

Q: According to the following reaction, how many moles of Fe(OH)2 can form from 175.0 mL of 0.227 M…

A: Moles of LiOH used =Molarity of LiOH×Volume of LiOH= 0.227 mol/L×175.0×10-3L=0.0397 mol

Q: What is the net ionic equation for the chemical reaction that occurs when aqueous solutions of…

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Q: How many grams of Cu(OH)2 will precipitate when excess NaOH solution is added to 59.0 mL of 0.615 M…

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Q: Identify each of the following reactions as precipitation, acid-base, oxidation-reduction, or…

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Q: Consider the reaction: Ag⁺(aq) + Cl⁻(aq) → AgCl(s) How many grams of NaCl would be needed to…

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Q: a). OH-(aq) + H+(aq) ? H2O(l) is the ionic equation for an acid and base reaction.    Calculate…

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Q: The concentration of Sn²+ in a solution is determined by titrating it with a 0.1798 M Ce¹+ solution.…

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Q: What is the net ionic equation to describe this precipitation reaction? Co(NO3)2 (aq) + 2NaOH…

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Q: Consider the net ionic equation: Cr2O72- + 6Fe2+ + 14H+ = 2Cr3+ + 6Fe3+ + 7H2O. If it takes 26.0 mL…

A: The number of moles is defined as the mass-to-molar mass ratio of a substance. It is represented by…

Q: Identify the oxidized substance and the reduced substance in the following redox reaction: Cu(s) + 2…

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Q: The following reaction occurs when two aqueous solutions are mixed: Cr(NO3)3(aq) + 3NaOH(aq)   →…

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Q: The following chemical reaction takes place in aqueous solution: Zn(NO,),(aq)+(NH,),S(aq)…

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Q: Consider the reaction: CaCl₂(aq) + 2AgNO₃(aq) → Ca(NO₃)₂(aq) + 2AgCl(s) How many grams of CaCl₂…

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Q: A solution containing the water soluble salt of the radioactive element thorium can be titrated with…

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Q: 3) Which of the following is a precipitation reaction? A) Nal(aq) + AGNO3(aq) → Agl(s) + NaNO3(aq)…

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Q: The concentration of a certain sodium hydroxide solution was determined by using the solution to…

A: From the formula of molarity and reaction between given compounds we can determine the Molarity of…

Q: Suppose you are titrating a sulfuric acid solution of unknown concentration with a sodium hydroxide…

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Q: According to the following reaction, how many moles of Fe(OH)2 can form from complete reaction of…

A: Molarity of LiOH solution = 0.454 M                                            = 0.454 mol L-1…

Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)₂(aq), until no further…

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Q: Mg(s) + 2H2O(l) = Mg(OH)2(aq) + H2(g) What is the concentration of hydroxide ions in the solution…

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Q: What mass of silver nitrate must be used to completely precipitate the chloride ion from the sample?

A: Ag+(aq) + Cl-(aq) → AgCl(s) Given, 1.515 g sample is known to contain 27.5% chloride ion by mass…

Q: W Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of Na2CO3…

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Q: (3) Write the ionic and net ionic equations of the following molecular equations: (a) FeBr (aq) +…

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Q: Calculate the volume of a 0.0500 M AgNO3 solution (in cm3) that is required to react fully with…

A: Given: Molarity of AgNO3 solution = 0.0500 M Mass of Cl- ions = 1.275 g Known: Molar mass of Cl-…

Q: Suppose you took a 3.00 mL sample of HNO3 (aq) of an unknown concentration, and find that you have…

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Q: Consider the following reaction H2S (g) + FeS(s) + CO2(g) →FeS2(s) + HCO2H(aq) If 2.00 g of each…

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Q: Complete the followin reaction by providing the products formed. Then balance the reaction and write…

A: The above given reaction is a double displacement reaction. Hence the products forming will be…

Q: Consider the reaction: Ag⁺(aq) + Cl⁻(aq) → AgCl(s) How many grams of NaCl would be needed to…

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Q: For the following reaction, 96.8 grams of perchloric acid (HCIO4) are allowed to react with 26.6…

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