Q: KMnO4 by heating. Calculate the Ca concentration in the sample since 4.94 mL
A: Molarity of KMnO4 =0.001 M Volume of KMnO4 = 4.94 mL At equivalent point, Geq. of KMnO4 = Geq. of…
Q: The ideal product of gravimetric analysis called precipitate should portray some specific…
A: In gravimetric analysis the precipitates are insoluble ionic solid products of a reaction, formed…
Q: A 25.00 mL sample of a clear saturated solution of PbI2 requires 13.3 mL of a certain aqueous AgNO3…
A: Solubility product For a compound, AxBy, the solubility product(Ksp) is; AxBy↔xAy-+yBx+Ksp=[Ay-]x…
Q: Calcium ion present in water supplies is easily precipitated as calcite (CaCO3):…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Give the formula of a compound which will give a precipitate with KI and K3PO4? SOLUBILITY RULES…
A: The reaction between KI and ZnCl2 is 2KI + ZnCl2 → 2KCl + ZnI2 In this Reaction products we get are…
Q: One way to remove heavy metal ions from water is by treatment with sodium carbonate. Calculate the…
A: Given data,Molarity of Mn2+=3.25×10-2MVolume of Mn2+ solution=0.654LMolarity of Na2CO3=0.742MVolume…
Q: n unknown compound is insoluble in water. It is dissolved in HCl with a gas formation with an…
A: The unknown compound with given the reaction which reacts with hydrochloric acid to produce gas with…
Q: You dissolved 3.00 g of calcium chloride and 3.50 g of sodium carbonate in tap water separately,…
A: CaCl2(aq)+Na2CO3(aq)→2NaCl(aq)+CaCO3(s)
Q: A 10.00 mL sample of Y(OH)2 was titrated to the stoichiometric point with 14.50 mL of 0.2345 M H2X.…
A:
Q: Ca2+ in a drinking water sample was analyzed by the following reactions below: Ca2+(aq) +…
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
Q: In the deposition method, one of the conditions that must be met is… a. The precipitate has a high…
A: Given: The deposition method, which involves the formation of precipitate in any reaction.
Q: 0.300 g of a nitrogen-containing sample is analyzed by the Kjeldahl method and the released ammonia…
A: The Kjeldahl method is a method for the quantitative determination of nitrogen contained in organic…
Q: III) When 25.0 mL of 0.100 M cadmium (II) nitrate and 20.0 mL of 0.150 NazS are mixed a yellow…
A: Volume of Cd(NO3)2 solution (V1) = 25 ml Molarity of Cd(NO3)2 solution (M1) = 0.1 M Volume of Na2S…
Q: Use the solubility product to determine whether CaHPO4 will precipitate from a solution with [Ca2+]…
A: Given, Concentration of Ca2+ = 0.0001M. Concentration of HPO42- = 0.001M.
Q: The alloy brass contains lead as an impurity in the form of lead sulphate (PbSO,). By dissolving…
A: Since you have asked multiple questions, we will answer only first question for you. In order to get…
Q: What was done to ensure that there are no more chloride ions present in the precipitate? (A)…
A: We have asked what was done to ensure that there are no more chloride ions present in the…
Q: A 10.00 mL sample of Y(OH)2 was titrated to the stoichiometric point with 14.50 mL of 0.2345 M H2X.…
A: Given: The molarity of H2X = 0.2345 M. The volume of Y(OH)2 = 10.00 mL. The volume of H2X = 14.50…
Q: Many salts of Pb2+ are sparingly soluble, and the difference in their solubility can be used to…
A:
Q: In an analytical laboratory that analyzes BOD, the titrant solution of sodium thiosulphate must be…
A:
Q: A sample of solid Ca(OH)2 was stirred in water at a certain temperature until the solution contained…
A: Given, Volume of Ca(OH)2, V1 =450 mL=450×10-3L=0.450 L Molarity of Ca(OH)2 M1= to find Valency…
Q: Give the formula of a compound which will give a precipitate with KI and K3PO4?
A: The question is based on the concept of solubility of precipitate. we have to identify which of the…
Q: Based on the general solubility rules predict if a precipitate will form when mixing following 0.1 M…
A: in Precipitation reaction, insoluble product is formed when two reactent are reacted to each other…
Q: a) In the gravimetric analysis the precipitate should be free from impurities. Give the detailed…
A: Gravimetric analysis is a quantitative analysis technique, in which the substance to determined…
Q: The solubility product for CrF3 is Ksp = 6.6 x 10^-11. What is the solubility of CrF3 in moles per…
A:
Q: When a 8.000 g of mineral ore sample containing Sn(CO3)2 (238.7 g/mol) and other inert material was…
A: Given that, 8.000 g of a sample containing Sn(CO3)2 and other inert material was is treated with…
Q: is white, highly soluble in water salt. Flame The substance to be analyzed coloration test gives…
A: Flame test is a qualitative test that indicates the cation present in salt. Reaction with dilute…
Q: Find the precipitate reaction to determine the % purity of the CaBr2 in a very old and crusty bottle…
A: Reaction taking place: 3CaBr2 + 2Na3PO4 → 6NaBr + Ca3(PO4)2 In general 3 moles of CaBr2 react with…
Q: 0.5366 g of an KHP sample of unknown purity was massed. The sample was dissolved in approximately…
A: The reaction between NaOH and KHP can be shown as,
Q: A sample containing BTEX What is the appropriate quantitative and qualitative analysis method for it…
A: BTEX i.e Benzene, toulene, ethyl benzene and xylene are volatile organic compounds and are very…
Q: concentration of Cr3+ that must be added to 0.095 M NaF in order for chromium(III) fluoride
A: CrF3(s) ----> Cr3+(aq.) + 3F-(aq.) Ksp = [Cr3+][F-]3 Concentration of F- = 0.095 M For minimum…
Q: A silver chloride precipitate is a type of gelatinous precipitates * True False
A: Silver chloride forms a white precipitates.
Q: How much precipitate is produced when 35.0 mL of 0.255 M NaCl is added to 45.0 mL of 0.328 M…
A: In a chemical reaction, reactants are converted to products. The chemical reaction occurs by their…
Q: Give the formula of a compound which will give a precipitate with KI and K3PO4? SOLUBILITY RULES…
A: (a) ZnCl2 + 2 KI --------> ZnI2 + 2 KCl All salts of Cl-, Br-, I- are soluble in water (except…
Q: 4) You are given a solution and asked to determine which Group I cations are present in it. Addition…
A: Group I cations consists of Ag+, Hg22+ and Pb2+. Group reagent is HCl.
Q: For the determination of Ca in blood serum, 5 mL of a serum sample is taken and Ca2 + is…
A: First find out the moles of utilized KMnO4 . By reaction stoichiometry, find the number of oxalate…
Q: Many salts of Pb2+ are sparingly soluble, and the difference in their solubility can be used to…
A:
Q: sium hydroxide precipitates when magnesium sulfate and sodium hydroxide mix. m carbonate forms from…
A: The question is based on the concept of chemical reactions. we have to write the balanced chemical…
Q: Test Tube 1 Test Tube 2 (Before) Aqueous (After) + 10 drops AGNO3 (Before) Aqueous (After) + 10…
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Q: Fill in the blanks by writing the name of the definition: is a method of purifying a substance by…
A: There are different type of separation methods for separating two or more components from the…
Q: When a 8.000 g of mineral ore sample containing Sn(CO,), (238.7 g/mol) and other inert material was…
A: Given that , Mass of mineral ore sample containing Sn(CO3)2 = 8.00 g Molar mass of Sn(CO3)2 =…
Q: You are given a 1.50-g mixture of sodium nitrate and sodium chloride. You dissolve this mixture into…
A: a. The reaction of silver nitrate with sodium nitrate and sodium chloride is precipitation reaction…
Q: The precipitate formed when Ni(NO3)2 is mixed with Li2S is A. Ni2S B. NiS C. LiNO3 D. Li2NO3
A: Choose the correct option for the precipitate formed -
Q: Bang-O is known to be an organic pesticide that contains 10.45% Cl. A 0.827 g sample containing the…
A: Here we are required to find the percentage of pesticide in the sample
Q: 12. An unknown precipitate of sulfide from the Group II cations dissolves upon the addition of 20…
A: In the given question we have to find the unknown cation by finding out the unknown precipitate of…
Q: ). If Ca(NO3) (aq) is slowly added to solution containing CO32– and SO42– what compound would…
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Q: A chemistry student is doing a titration lab in and needs to make up 2 liters of NaOH for the class…
A: The reaction of Sodium Hydroxide (NaOH) with Potassium Hydrogen Phthalate (KHP) is One mole of NaOH…
Q: Use the following information (and the provided solubility chart) to answer the below questions. In…
A: a.) To write net ionic equation , we would first write complete molecular equation using solubility…
Q: You choose to investigate some of the solubility guidelinesfor two ions not listed in Table 4.1, the…
A: a) The net ionic equation of the each experiment has to be given, CrO4-+2 Ag+→Ag2CrO4…
In the gravimetric analysis, precipitation method, solubility of %so3
What happends in the ignition process?
What is the product after the precipitate is ignited?
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Solved in 2 steps
- Lead poisoning has been a hazard for centuries. Some scholars believe that the decline of the Roman Empire can be traced, in part, to high levels of lead in water from containers and pipes, and from wine that was stored in leadglazed containers. If we presume that the typical Roman water supply was saturated with lead carbonate, PbCO3 (Ksp = 7.4 1014), how much lead will a Roman ingest in a year if he or she drinks 1 L/day from the container?For a precipitation reaction to be useful in a gravimetric analysis, the product of the reaction must be insoluble. Is Kc1,1 or 1 for a useful precipitation reaction?A chemist dissolves a 1.497-g sample of a type of metal (an alloy of Sn, Pb, Sb, and Cu) in nitric acid, and metastannic acid, H2SnO3, is precipitated. She heats the precipitate to drive off the water, which leaves 0.4909 g of tin(IV) oxide. What was the percentage of [in in the original sample?
- 68. Aluminum ion may be precipitated from aqueous solution by addition of hydroxide ion, forming Al(OH)3. A large excess of hydroxide ion must not be added, however, because the precipitate of Al(OH)3 will redissolve as a soluble compound containing aluminum ions and hydroxide ions begins to form. How many grains of solid NaOH should be added to 10.0 mL of 0.250 M A1Cl3 to just precipitate all the aluminum?According to the Resource Conservation and Recovery Act (RCRA), waste material is classified as toxic and must be handled as hazardous if the lead concentration exceeds 5 mg/L. By adding chloride ion, the lead ion will precipitate as PbCl2, which can be separated from the liquid portion. Once the lead has been removed, the rest of the waste can be sent to a conventional waste treatment facility. How many grams of sodium chloride must be added to 500 L of a waste solution to reduce the concentration of the Pb2+ ion from 10 to 5 mg/L?The ideal product of gravimetric analysis called precipitate should portray some specific properties. Which among the following is a property of a good precipitate and why?
- The following analytical procedures were used for the determination of chlorate (ClO3-). 10.00 mL of solutionA containing chlorate is analyzed. The chlorate is reduced with granulated zinc (to chloride).The excess zinc is dissolved in acid, after which the sample is filtered. The filtered sample is added70.00 mL 0.100 M AgNO3 solution dropwise. The precipitate is filtered off, washed and dried.It weighs 0.6003 grams. Calculate the chlorate concentration in solution AA 12.63 g sample of calcium ore was dissolved in HCl and gravimetrically analyzed, through the precipitation of calcium into CaC2O4 · H2O. The precipitate was filtered, washed, dried, and ignited at 500 oC until the weight was constant, giving a final mass of 2.35 grams pure CaCO3 (100.087 g/mol). Calculate the % Calcium (40.078 g/mol) in the sample.The concentration of arsenic in an insecticide can be determined gravimetrically by precipitating it as MgNH4AsO4. The precipitate is ignited and weighed as Mg2As2O7. Determine the %w/w As2O3 in a 1.627-g sample of insecticide that yields 106.5 mg of Mg2As2O7.
- What Is the mass to mass stoichiometry calculation in this balanced chemical equation? (Given that the sulfur in the yield is octasulfur since this is a precipitated sulfur) 8CaS5 + 16HCl → 5S8 + 8CaCl2 + 8H2 and what is the A.) limiting reagent b.) excessive reagent given the mass attached in the photo?The concentration of CO in air is determined by passing a known volume of air through a tube that contains I2O5, forming CO2and I2. The I2 is removed from the tube by distilling it into a solution that contains an excess of KI, producing I3-. The I3-is titrated with a standard solution of Na2S2O3. In a typical analysis a 4.79-L sample of air is sampled as described here, requiring 7.17 mL of 0.00329 M Na2S2O3 to reach the end point. If the air has a density of 1.23 × 10–3 g/mL, determine the parts per million CO in the airConsider a solution containing the following cations: Na+, Hg2+, Mn2+, Al3+ and Ag+.Treatment of the solution with dilute, HCl followed by saturation with H2S, results in formation of precipitate(s). Which ions still remain in solution (did not precipitate)?
