A sample of material contains the components NaOH, Na2CO3, NaHCO3 , or possible mixtures of these. Two samples, each weighing 1 .000 gram, are dissolved in water. To one sample phenolphthalein is added and the solution is titrated cold with 1.038 N acid, of which 17.96 ml are required. The other sample is titrated cold with methyl orange as an indicator, and 21.17 ml of the same acid is required. Calculate the percentage of alkalies present.

Q: A chemistry student adds a quantity of an unknown solid compound X to 450. mL of distilled water at…

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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 standard solution of FeCl3 was prepared and its molar concentration was determined to be 2.000 M.…

A: Initial moles of FeCl3 = 2.00M × 10.00mL = 20mmoles FeCl3 dissociates into Fe3+ and 3Cl- ions. Thus,…

Q: We have a liter of sulfuric acid solution of 98% richness and density 1.84g/ ml. Calculate: a) the…

A: 98% richness of H2SO4 means 98 g of H2SO4 present in 100 g of the solution. The volume of the…

Q: What is the normality of a solution of potassium permanganate if 50.13 mL will oxidize the weight of…

A: Given: Normality of NaOH = 0.3010 N Volume of NaOH required = 43.42 mL. And the volume of KMnO4…

Q: Complete the (aq) dissolution equations for each solute, identify the solution as electrolyte or not…

A: The solution is given below -

Q: A 1956 dime is made of a silver-copper alloy and has a mass of 2.490 g. The dime was dissolved in…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: When aqueous solutions of AgNO3 and NaCl are mixed together, the precipitate that will form is…

A: The answer to the following question is-

Q: You are provided with an unknown solution that contains Group I cations. To 1 mL of this solution…

A: All three of the group I cations(Pb2+, Ag+ and Hg22+) give precipitate on addition of HCl because…

Q: To determine, by gravimetric analysis, the concentration of barium ions (Ba2") in a given solution,…

A: Molar mass of barium sulphate= 233.38g/mol  Moles of barium sulfate= 1.167/233.38…

Q: Phosphoric acid, H3PO4(aq), can be used to remove rust. Find the molar concentration of an 85% (m/v)…

A: Given: 85% m/v solution of phosphoric acid, that is 85 g of phosphoric acid in 100 g of solution To…

Q: Consider these compounds: A. Caso3 B. CuCo3 C. Pb3(PO4)2 D. Baз(PО4)2 Complete the following…

A: Answer: In this question we have to predict whether we can compare the solubility of the compounds…

Q: Consider these compounds: A. Al(OH)3 B. Ag3PO4 C. Zn3(PO4)2 D. Ca3(PO4)2 Complete the following…

A: Given compounds are: A. Al(OH)3 B. Ag3PO4 C. Zn3(PO4)2 D. Ca3(PO4)2 By comparing these…

Q: A 185.0 mL sample of 1.200M Pb(NO3)2 is mixed with 139.50 mL of 1.500 M NaCl, and the PbCl2…

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Q: Ibuprofen, widely used as a pain reliever, has a limited solubilityin water, less than 1 mg>mL.…

A: The considered chemical compound is ibuprofen.

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: A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 119.50 mL of 1.500 M NaCl, and the PbCl₂…

A: The balanced Chemical Reaction for less Nitrate and sodium chloride is - Pb(NO₃)₂  + 2NaCl ---->…

Q: A titrant of 1.0 M K2Cr2O7 was used for titration of 30 mL aqueous ethanol C2H6O solution and…

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Q: Complete the (aq) dissolution equations for each solute, identify the solution as electrolyte  or…

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Q: A sample is known is known to consist of NaOH (40 g/mol) or NaHCO3 (84 g/mol), or Na2CO3 (106 g/mol)…

A: Given that : The sample contains : NaOH (40 g/mol) or NaHCO3 (84 g/mol), or Na2CO3 (106 g/mol) or…

Q: An aqueous solution is prepared by mixing 240.0 mL of 1.700 M NiCl2 with 160.0 mL of 2.200 M NaCl…

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Q: Write a balanced chemical equation describing the mixing of the following 2 reagents in aqueous…

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Q: 5. 3 % of NaOH solution is required during clay content determination laboratory work. Describe…

A: Answer 3: As per answering guidelines here is the solution of Q3. please ask separately other…

Q: 3.A sample is known to contain NaOH, NA2CO3 NaHCO3 or compatible mixture of these together with…

A: a) 2Na2​CO3​+2HCL⇌2NaHCO3​+2NaCL b) 2NaHCO3​+2HCL​⇌2NaCL+2H2​CO3​

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

A: The question makes use of iodometric titrations in which  indirectly liberated iodine is titrated…

Q: Consider these compounds: A. CUCO3 B. A92CO3 C. MNCO3 D. Ni(OH)2 Complete the following statements…

A: To compare solubility of given salts we would use their Ksp values.  The salts whose Ksp is higher…

Q: A 0.1530 g of pure KIO3 was dissolved in 50 mL distilled water. This was then added with KI and 6N…

A: Normality of sodium thiosulfate solution can be calculated from the Molarity. So first we calculate…

Q: A quantitative analysis for ethanol, C2H60, is accomplished by a redox back titration. Ethanol is…

A: The explanation is given below-

Q: A 185.0 mL sample of 1.200 M Pb(NO3)2 is mixed with 123.50 mL of 1.500 M NaCI, and the PbCl2…

A: Molarity of Pb(NO3)2 = 1.200 M  Volume of of Pb(NO3)2 =  185.0 mL = ( 185.0 / 1000 ) L = 0.185 L…

Q: Explain how to prepare 500mL of 2.5M NaOH using solid NaOH, water, a balance and a volumetric flask

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Q: The boiling point of diethyl ether, CH3CH2OCH2CH3, is 34.500 °C at 1 atmosphere. Kb(diethyl ether) =…

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Q: In the titration of a volume of 50 mL of a hydrochloric acid solution with Solution density 1.045 g…

A: Density is measure of mass per unit volume. Density =MassVolume Molarity is the ratio of moles of…

Q: Consider these compounds: A. Ba3(PO4)2 B. Ca3(PO4)2 C. PbCrO4 D. CaCrO4 Complete the following…

A: Barium sulfite = BaSO3 Barium sulfite dissociates as: BaSO3(s) <.....> Ba2+(aq) + SO32-(aq)…

Q: Suppose you are given three bottles, labeled A, B, & C; each contains an aqueous solution. You are…

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Q: Consider these compounds: A. PbBr2 B. Ag,Cro4 C. Pb3(PO4)2 D. Ca3(PO)2 Complete the following…

A: Solubility Product the highest product of an electrolyte's ionic concentrations or activities that…

Q: Consider these compounds: A. PBF2 В. AgCI C. Ag,S D. MnS Complete the following statements by…

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Q: A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 97.50 mL of 1.500 M NaCl, and the PbCl₂…

A: Given, A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 97.50 mL of 1.500 M NaCl, and the PbCl₂…

Q: Calculate the Formal and Molar concentrations of the constituents in 2.30 g of ethanol (g. i 46.1)…

A: formal concentration= 2.30*1000/3500 =0.46

Q: 1. What mass of solid Lanthanum (III) oxalate nonahydrate {La2 ( C204 )3 · 9 H2O } can be obtained…

A: A part of chemistry that defines the relation between the amount of reactant and products is named…

Q: The molar mass of potassium hydrogen phthalate (KHC3H4O4, abbreviation KHP) is 204.22 grams per…

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Q: Calculate the Formal and Molar concentrations of the constituents in 2.30 g of ethanol (g. fw 1) in…

A: Introduction: Formal concentration:  The formality for formal concentration is defined as the number…

Q: Precipitation gravimetry : In precipitation gravimetry , the analyte is converted to a sparingly…

A: The statement is True In the precipitation gravimetry the analyte is transformed into the moderately…

Q: A 516.7-mg sample containing a mixture of K,SO, and (NH4),SO4 was dissolved in water and treated…

A: Given, Mass of sample : 516.7 mg=516.7×10-3 g BaSO4 yield = 863.5 mg

Q: compounds can be toxic and must be removed from wastewater. Aqueous mercury (II) nitrate is a toxic…

A: Balanced chemical reaction,  Hg(NO3)2 + Na2S---> HgS + 2NaNO3 Moles = M × V Moles of Hg(NO3)2 = M…

Q: 1.372 g sample of KHP with the dilute sodium hydroxide solution, NaOH (aq), to a phenolphthalein end…

A: Given :-a>  Concentration of NaoH  = 6 m        Mass of KHP                    = 1.372 g…

Q: The tartaric acid, H2C4H4O6 (150.087 g/mol ) concentration in 100.0 mL wine sample was determined…

A: We have to calculate the %W/W acid content.

Q: A student measured 20 drops of vinegar and one drop of phenolphthalein solution into a well of her…

A: The titration of vinegar is carried out with NaOH. When the reaction is completed, then the number…

Q: 0.6113 g sample of Dow metal, containing aluminum, magnesium, and other metals, was dissolved and…

A: Mass of sample = 0.6113 g Mass of mixture of Al(C9H6NO)3 and Mg(C9H6NO)2 = 7.8154 g Mass of mixture…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.