1.50 g of CaCl2 is sissolved in water and combined with an excess of NaCO3 CaCl2 + Na2CO3 ---> CaCO3 (s) +2NaCl mistakenly you used LiCO3 instead of NaCO3, explain the effects on your experiment?
Q: How many milliliters of 0.237 M Ca(OH)2 are needed to react with 0.00356 moles of Cl2 in the…
A:
Q: An unknown concentration of sodium thiosulfate, Na2S2O3,Na2S2O3, is used to titrate a standardized…
A:
Q: Chemistry How to find the mean percent NaClO in commercial bleaching solution?
A:
Q: What mass of K2CO3 is needed to prepare 82.0 mL of a solution having a potassium ion concentration…
A:
Q: 2- A solution of concentrated HCl has specific gravity of 1.185 and percentage is 36.5 % (w/w) HCI.…
A: Molarity of a solution is the no.of moles present per litre of the solution. The molarity of an acid…
Q: Preparation of HCI solution a. Measure 20.7 ml of concentrated Hcl (37% wt HCI) using the pipet and…
A:
Q: A 5.00 mL aliquot of 0.250 M Pb(NO3)2 is diluted to 100.0 mL. What is the concentration of the…
A: Given: Volume of Initial solution = 5.00 mL Initial concentration of Pb(NO3)2 = 0.250 M And volume…
Q: What is the percent magnesium hydroxide, if a sample of magnesia magma weighing 5.2430g when…
A: By law of equivalence : Number of equivalents of Mg(OH)2 = equivalents of H2SO4 + equivalents of…
Q: 315 ml of water was added to 2100 ml of 19M MaCl solution. What is the new concentration of the…
A: Given-> Initial volume (V1) = 2100 ml Initial molarity (M1) = 19 M Volume of added water = 315…
Q: A mixture containing only BaO and CaO weighs 3.50g. The oxides are converted to the corresponding…
A:
Q: Using the data below how do you calculate the percent yield Compounds Mass Cyclohexanol used…
A: % Yield = Obtained mass x 100/Calculated mass
Q: 1. How much triple phosphate (0-48-0) fertilizer would be needed to apply a rate of 90 lb P2O5/acre…
A: 1. Need of triple phosphate (0-48-0) fertilizer 90 lb P2O5 per acre For 100 acre field, total need…
Q: Dapsone tablets, labelled 50 mg has an average tablet weight of 0.6509 g. 2.0g of powdered tablets…
A: Given: Dapsone tablets, labelled 50 mg has an average tablet weight of 0.6509 g. Mass of powdered…
Q: 3.A sample is known to contain NaOH, Na2CO3 NaHCO3 or compatible mixture of these together with…
A: Given, 1.100 g sample 31.4 ml of HCl
Q: KHP + NaOH—> KNaP +H2O Data of trial Mass of KHP : 0.8084g Initial buret containing NaOH reading:…
A:
Q: An impure sample containing 2.00 g of sodium carbonate and bicarbonate was taken. It was dissolved…
A: The question is based on the concept of mix indicator titration. At phenolphthalein end point, Only…
Q: If 16.45 mL of ammonium thiocyanate solution is required to react completely with 25.00 mL of 0.1546…
A: Answer: These questions are based on the stoichiometric calculation where we have to calculate the…
Q: trial molarity of Hci molarity of NaOH volume of HCI volume of NaOH 1 1M 2M 200mL 200mL 2 1M 1M…
A: Limiting reagent is the species which present in lesser amount and get completely consumed during a…
Q: Dapsone tablets, labelled 50 mg has an average tablet weight of 0.6509 g. 2.0g of powdered tablets…
A: The balanced reactions given are, 1) NaNO2 + HCl → HNO2 + NaCl2) R-NH2 + HNO2 + HCl → R-N2Cl + 2 H2O…
Q: 10 CCh and diluting to 150.0 mL. a Calculate moles of Na", Ca³" and Cl- in the solution b. Using…
A: a.) To calculate moles of each ion, we would first Calculate moles of NaCl and CaCl2 solution . Then…
Q: a) An aqueous solution contains 12.6 ppm of dissolved Ca(NO3)2 (which gives Ca21 1 2NO32). Find the…
A:
Q: Calculate the gravimetric factor of: FeO in Fe2O3 Bi2S3 in BaSO4 BaSO4 in (NH4)2SO4 Mn2O3 in Mn3O4…
A:
Q: : A 12.1 Moles NaOH solution means there are 12.1 moles of NaOH in liter of solution. Preparation of…
A:
Q: (a) Explain why dissolving a precisely known mass of solid NaOH and making the solution up to 250.0…
A: Volumetric flask is used for preparing a fixed volume of solution. Like for preparing 250 ml…
Q: 2Na + ZnCl2 ---> 2NaCl + Zn What mass of Sodium Chloride would be produced if 50.0mL of 2.00mol/L…
A:
Q: 3.A sample is known to contain NaOH, NA2CO3 NaHCO3 or compatible mixture of these together with…
A: a) 2Na2CO3+2HCL⇌2NaHCO3+2NaCL b) 2NaHCO3+2HCL⇌2NaCL+2H2CO3
Q: 00g of Al2S3 dissolved in H2O to make 15.0 L of solution. What is its normality? (MW: Al = 27g / mol…
A:
Q: CaCl2 and diluting to 150.0 mL. a. Calculate moles of Na", Ca2* and Cl- in the solution b. Using…
A:
Q: Toxic Cr(VI) can be precipitated from an aqueous solution by bubbling SO2 through the solution. How…
A:
Q: What concentration of Br−results when 641 mL of 0.733 M KBr is mixed with 703 mL of 0.505 M FeBr2?
A: The concentration of Br- ion in the mixture containing 641 mL of 0.733 M KBr and 703 mL of 0.505 M…
Q: You are required to prepare 5 L of a solution containing 1.000 x 10 mol/L of Cu2"(aq). Which of the…
A: The molarity of a solution describes the number of moles of the solute present in one liter of…
Q: 4. Plot 1/ (y-axis) against M (x-axis). Is the curve reasonably straight? Note: You did not start…
A: The molarities of Na2S2O3 and 1/time for each well are provided as below: Well Molarity of…
Q: Detemine the mole faction of the solvent in a solution prepared by dissolving: 36g of CH3OH in 1000…
A: NOTE: In question 1, there is some data not given properly. Since you have asked multiple questions,…
Q: The standard concentration of a CdCl2 barium chloride solution containing 562 mg / liter is…
A: Note : CdCl2 is cadmium chloride but in question Barium chloride is written .Therefore name should…
Q: How many millimetres of 3.0 M H2SO4 are needed to make 450 mL of 0.10 MH2SO
A: The molarity is the concentration term defined as the number of moles of solute dissolved per liter…
Q: An impure sample of table salt that weighed 0.8631 gg when dissolved in water and treated with…
A: Given mass of impure sample = 0.8631 g mass of AgNO3 formed = 2.040 g
Q: uves of Selected Compounds 150 140 130 120 110 100 NaNO, 90 80 70 60 50 NH CI KCI 40 Naci 30 20…
A: From the graph: It is clear that the slope of KNO3 is maximum. While the slope of other are not less…
Q: Anhydrous, primary standard sodium thiosulfate can be prepared from the pentahydrate, Na2S2O3.5H2O.…
A: Answer: Molar concentration of solute in solution is: Molarity=Mass of solute×1000Molar mass of…
Q: ssolve 14.7 grams of sodium hydroxide pellets in 100 ml of carbon-dioxide free water. ool the…
A:
Q: Of the substances (as pure substances, in aqueous solutions, or of mixtures) tested on video,…
A: Ionic compounds are those compounds which are formed by the transfer of electrons between the…
Q: Dissolve 0.25g NaCl, 0.20g NaHCO3, 0.35g KCl, and 1.5g of glucose in 100 mL distilled water using a…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: A silver nitrate solution contains 29.53 g of primary standard AgNO3, in 1.00 L what volume of this…
A: We have to calculate the volume of solution .
Q: A solution contains 125 g of a compound and 555 g water. The boiling point of the pure solvent is…
A: Given :- Mass of compound = 125 g Mass of solvent = 555 g or 0.555 kg boiling point of the…
Q: Part 1) a) What is the initial concentration of Fe3+ and SCN1- if 5 mL of each were mixed together.…
A: The equilibrium reaction is Fe3+ + SCN- ↔ Fe(SCN)2+
Q: Calculate the final molarity of H2O2H2O2 if 5.9 mL5.9 mL of a 3.0% w/w H2O23.0% w/w H2O2 solution,…
A: since you have posted multiple questions in a single session we are entitiled to answer only first…
Q: A solution was prepared by dissolving 3.50 g of KCI MgCl₂ 6H₂0 (277.85 g/mol) in sufficient water to…
A:
Q: For a one I had five drops of Na2S2O3 and three drops of hydrochloric acid. For well A2 I had four…
A: Molarity of Na2S2O3 = 0.1 M Molarity of HCl = 0.1 M It is required to calculate the final molarities…
Q: Volume of 0.100 M Na3PO4 solution used 30 mL 30 mL Initial burette volume of CaCl2 solution .6 mL…
A: We are given all the data to find the moles of CaCl2 consumed in the reaction and find the molarity…
Q: Determine the volume of glacial acetic acid to prepare 500 ml of a 0.020 M acetic acid solution…
A:
1.50 g of CaCl2 is sissolved in water and combined with an excess of NaCO3 CaCl2 + Na2CO3 ---> CaCO3 (s) +2NaCl
mistakenly you used LiCO3 instead of NaCO3, explain the effects on your experiment?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- Volume of acetic anhydride: 2.98 mL Mass of salicylic acid: 1.00 g Mass of aspirin recovered: 0.67 g Show that mmol of aspirin recovered divided by mmol of limiting reagent x 100% gives the same % yield (please explain) Thank you.In a similar experiment, the mass of 3 PB tablets was measured to be 3.1823 g. The tablets were crushed, and 2.9801 g of the powder was transferred to a beaker and reacted with HCl. After filtration, the filtrate was transferred to a 50-mL volumetric flask and diluted with water. 10.00 mL of this stock solution was combined with 0.2 M Na3PO4. The resulting precipitate weighed 0.2425 g after drying. What is the mass of BSS per tablet in mg?Round your answer to 1 decimal place.A sample of anhydrous NaHCO3 (FM = 84.007) is suspected to be contaminated with eitherNaOH (FM = 39.997) or Na2CO3 (FM = 105.989). To verify the suspicion, a 0.7483 g sample was dissolved to prepare a 50.00 mL solution, and a 10.00 mL aliquot was taken to prepare a 100 mL solution, where 25.00 mL was analyzed using double flask method. If the sample requires 0.45 mL of standard 0.0125 N HCl to reach the phenolphthalein endpoint and 35.95 mL to reach the bromcresol green endpoint, calculate the percentage composition (in %w/w) of all the basic components in the sample.
- A sample of anhydrous NaHCO3 (FM = 84.007) is suspected to be contaminated with either NaOH (FM = 39.997) or Na2CO3 (FM = 105.989). To verify the suspicion, a 0.7483 g sample was dissolved to prepare a 50.00 mL solution, and a 10.00 mL aliquot was taken to prepare a 100 mL solution, where 25.00 mL was analyzed using double flask method. If the sample requires 0.45 mL of standard 0.0125 N HCl to reach the phenolphthalein endpoint and 35.95 mL to reach the bromcresol green endpoint, calculate the percentage composition (in %w/w) of all the basic components in the sample.Solution for 0.105g of the K3[Fe(C2O4)3] (MW= 437.2 g/ mol) were dissolved in sulfuric acid and got rated with 9 mL of 0.028M KMn04. What is the experimental weight percent of oxalate in the sample?A 0.1093-g sample of impure Na2CO3( Molecular weight 106) was analyzed by the Volhard method. After adding 50.00 mL of 0.06911 M AGN03 (Molecular weight 169.87), the sample was back titrated with 0.05781 M KSCN, requiring 27.36 mL to reach the end point. Report the purity of the Na2CO3 sample.
- Using a spectrophotometric technique, the phosphorus content in a mineral will be prolonged. The procedure used is described below: 8.35 g of sample are dissolved and treated so that all phosphorus is converted to the blue orthophosphate complex and made up to volume with distilled water end of 100 ml. The transmission of the resulting solution is 30.6%. If the orthophosphate standard solution of sodium, which is treated in the same way, and which has a final concentration of 2.467x10-4 M, gave a transmittance of 20.5%, calculate the phosphorus content in the driven sample in ppm Na3PO4.Calculate the Mg (OH) 2 content of MOM, 13.2 g of which was dissolved in 55.00 mL of 1.2642 NH2S04 producing a mixture that required 25.3 mL of 1.771 N NaH. Mg(OH)2 has MW=58.32 andfeq=21.17g of indole, 5mL DMF, 1.7g POCl3 are used in the experiment. Calculate the limiting reagent and the theoretical yield.
- A sample of anhydrous Na2CO3 (FM = 105.989) is suspected to be contaminated with either NaHCO3 (FM = 84.007) or NaOH (FM = 39.997) To verify the suspicion, a 0.7483 g sample was dissolved to prepare a 50.00 mL solution, and a 10.00 mL aliquot was taken to prepare a 100 mL solution, where 25.00 mL was analyzed using single flask method. If the sample requires 27.50 mL of standard 0.0125 N HCl to reach the phenolphthalein endpoint and another 28.40 mL to reach the bromcresol green endpoint, calculate the percentage composition (in %w/w) of all the basic components in the sample.A chemist received different mixtures for analysis with the statement that they contained NaOH, NaHCO3, Na2CO3, or compatible mixtures of these substances, together with inert material. From the data given, identify the respective materials, and calculate the percentage of each component. 1.000g samples and 0.2500N HCl were used in all cases. (A) For Sample W: With PP, 24.32ml was used. A duplicate sample required 48.64ml with MO. (B). For Sample X: The addition of PP caused no color change. With MO, 38.47ml of the acid was required. (C). For Sample Y: To cause a color change in the cold with PP, 15.29ml of the acid was necessary, and an additional 33.19ml was required for complete neutralization. (D) For Sample Z: The sample was titrated with acid until the pink of PP disappeared; this process required 39.96ml. On adding an excess of the acid, boiling, and titrating back with alkali, it was found that the alkali was exactly equivalent to the excess acid added.An impure sample of Na3PO3 weighing 0.1 g is dissolved in 35 mL of water. A solution containing 45 mL of 3% w/v HgCl2, 30 mL of 10% w/v sodium acetate, and 10 mL of glacial acetic acid is then prepared. After digesting, filtering, and rinsing the precipitate, 0.2857 g of Hg2Cl2 is obtained. Report the purity of the original sample as % w/w Na3PO3.