25.0 mL aliquots of a 0.106 mol/L Sn2+(aq) solution was used to standardize an acidified potassium dichromate solution. The average volume of titrant used in the standardization wa 27.63 mL. The acidified potassium dichromate solution w

Q: The following chemical reaction takes place in aqueous solution: Fe, (so,),(aq)+3…

A: Process to write net ionic equation  1.  Break the aqueous species into ions in a Balance reaction…

Q: The protein content of wheat flour can be determined reasonably accurately by multiplying the…

A: Kjeldahl method is used for protein's quantitative analysis.

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A: Solution: Sb3+ reacts with bromate in 1:3 mole ratio i.e. 3 mol bromate ion reacts with 1 mol Sb3+.

Q: 25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20…

A: The question is based on the concept of quantitative analysis . we have to calculate percentage of…

Q: A sample of iron ore weighing 0.2812 g was dissolved in an excess of a dilute acid solution. All the…

A: The volume of the given solution is 21.70 mL which is equal to 0.0217 L. The number of moles of…

Q: A titration analysis of a 345.0 mL aqueous HBr solution was performed and the endpoint was reached…

A: Molarity of KOH=2.815 M Volume of KOH=191.05 mL =191.05/1000 =0.19105 L  [1 L = 1000 mL] Volume of…

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A: Mass of ore = 5.45 g Molecular weight of Sb = 121.76 g/mol

Q: The solubility product of a sparingly soluble salt, XF2, was determined by titration and found to be…

A: Given that: solubility product of XF2 = 2.9×10-10 M volume of  XF2 = 25.00 mL molarity of HCl =…

Q: The amount of I, (aq) in a solution can be determined by titration with a solution containing a…

A: Given balanced equation: 2 S2O32- (aq) + I3- (aq) → S4O62- (aq) + 3 I- (aq) The volume of the…

Q: A 1.0 g sample of a substance of unknown molar mass requires 40 ml of standard solution for…

A:

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 active agent in many hair bleaches is hydrogen peroxide. The amount of H,O, in 14.6-g of hair…

A: Given: Volume of KMnO4 = 46.1mL=0.0461L Concentration of KMnO4 is 0.154 M the mass of bleach is…

Q: 19- A sample of limestone is titrated for its value as a neutralizing agent. A sample weighing 1.000…

A: Limestone is CaCO3 Moles of CaCO3 = 1 / 100 = 0.01

Q: What mass of solid potassium oxalate (K2C2O4), when dissolved in an acidic solution, would be…

A:

Q: The analyst wanted to measure the zinc oxide content of a 1.25-g sample. The sample was treated…

A: As per rules, only three questions can be answered: Titrimetric analysis method: Back titration…

Q: The amount of I, (aq) in a solution can be determined by titration with a solution containing a…

A:

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A: Given  Mass of sample = 6.05 g Volume of KBrO3 = 23.7 ml Molarity of KBrO3 = 0.145 M Standard values…

Q: The density of acetic acid is 1.05 g/ml. * 10 ml of commercial vinegar was taken during titration…

A: Given: The density of acetic acid = 1.05 g/ml The volume of commercial vinegar taken = 10 ml The…

Q: Potassium permanganate solutions used in oxidation-reduction titrations are often standardized…

A:

Q: A sample of a tin containing ore is dissolved in sulfuric acid. The redox titration reaches the…

A:

Q: A solution was prepared by dissolving 435 mg of K3Fe(CN)6 in enough water to give 945 mL of…

A: As the question contains multiple sub-parts so only the first three are solved in this solution. If…

Q: All arsenic in the mineral containing 20 g of arsenic is dissolved by converting it into As3+.…

A: Working formula Decinormal = one tenth of normality = 0.1 N Normality = Molarity*no of equivalents…

Q: A titration of a 0.7879g sample potassium hydrogen phthalate, KHP (GFW= 204.23g/mole), required…

A:

Q: A 0.450 g sample of impure CACO,(s) is dissolved in 50.0 mL of 0.150 M HCI(aq). The equation for the…

A:

Q: The aluminum in a 1.200g sample of impure ammonium aluminum sulfate was precipitated with aqueous…

A: Mass of Sample is 1.200 g. Mass of anhydrous Al2O3 is 0.2001 g. Calculation of no. of mol of…

Q: The amount of ozone in a mixture of gases can be deter- mined by passing the mixture through an…

A: Given: Total volume of gaseous mixture = 53.2 L Temperature of gas = 18 oC And pressure of gases =…

Q: The Fe2+Fe2+ (55.845 g/mol) content of a 2.063 g steel sample dissolved in 50.00 mL of an acidic…

A:

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

A: Answer:- Firstly the given redox reaction is balanced using the oxidation number method then using…

Q: A sample of solid Eu(OH)3 was stirred in water at a certain temperature until the solution contained…

A: The concentration of hydroxide ion (OH-) in the solution is determined as follows.…

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A: The given reaction is : The oxidation half-reaction is : Sb3+  →  Sb5+  +  2e- The reduction…

Q: 12.) A 2.00g sample of limestone was dissolved in hydrochloric acid and all the calcium present in…

A:

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A: The balanced reaction is: BrO3- + 3Sb3+ + 6H+ = 3Sb5+ + Br- +  3H2O

Q: The quantity of antimony in a sample can be determined by an oxidation–reduction titration with an…

A: The question is based on the concept of quantitative estimation. it involves estimation of the…

Q: The amount of iron in ore can be quantitatively determined by titrating a solution of the unknown…

A: Given values -> Volume of iron(3) = 25.0ml (V1) Volume of dicromate =18.0ml (V2) Molarity of…

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: The amount of I, (aq) in a solution can be determined by titration with a solution containing a…

A:

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A:

Q: The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an…

A: The balanced reaction is 2 KBrO3 + 3 Sb2O3 + 2HCl-------> 2 KCl+ 3 Sb2O5 + 2HBr For two mole of…

Q: The SO2 present in air is mainly responsible for acid rain. Its concentration can bé determined by…

A: Molarity of the solution is equal to the number of moles of solute present in one liter of the…

Q: A 10.00 ml sample of a solution of hydrofluoric acid, HF, is diluted to 500.00 ml. A 20.00 ml…

A: At equivalence point the molarity of both HF and NaOH becomes equal in the titrated solution. From…

Q: The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating with a standard…

A: The balanced chemical equation has the number of atoms of the reactants is equal to the atoms count…

Q: A 0.1500 g of salt sample was analyzed for percent chloride (3545 g/mQl) content. The titration of…

A: The precipitation method that employs silver nitrate for titration in analytical chemistry is called…

Q: A stock solution containing Mn2+ ions was prepared by dissolving 1.584 g pure manganese metal in…

A: Given that, Mass of Mn= 1.584 g Volume of stock solution = 1.00 L Now, 10.00 mL of this stock…

Q: A 1.2516 gram sample of a mixture of CaCO3 and Na2SO4 was analyzed by dissolving the sample and…

A: (a) From the mixture, CaCO3 is precipitated out as CaC2O4. Thus1 mole of CaC2O4 is precipitated by 1…

Q: 6. The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating with a standard…

A:

Q: The conversion of nitrogen to ammonia, an essential process in the nitrogen cycle, occurs only in…

A: Given, the reaction involved in the titration: The volume of the Mo3+ sample = 30 mL The volume of…

Q: The lead(II)ion can be effectively removed from solution via the addition of phosphate ions. The…

A: Here a solution is made by dissolving 6.93 g of Pb(NO3)2 to 50 ml of water and finally the volume…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".