(2) j lubäi On the gravimetric determination of CI, if the weight of AgCl ppt. was 1.433 g.; the weight of Cl- in the sample will equals to: .. (AgCl molecular weight = 143.3 and Cl- =35.5) 143.3/35.5 g. 3.55 g. 0.1433 g. 0.355 g. O O
Q: A Nickel bis-dimethylglyoximate complex was deposited with a weight of (2.721g) with the filter…
A: Nickel bis-dimethylglyoximate has a chemical formula of Ni[ONC(CH3)C(CH3)NOH]2 that is formed from…
Q: Write the differences between physisorption and chemisorption with respect to the following: (i)…
A: Physisorption is also called as physical adsorption. Chemisorption is adsorption process in which…
Q: 2. In a laboratory experiment you react 20.0 mL of 25% by mass C2H&N2 with 8.000 NiCl2.6H2O to…
A: The balanced chemical equation can be written as follows: NiH2O6Cl2 + 3C2H8N2 → NiC2H8N23Cl2 +…
Q: Which is true with distribution coefficient? I. A partitioning of a compound exist between a mixture…
A: The distribution coefficient is the ratio between the concentration of solute in the organic phase…
Q: Nickel bis-dimethylglyoximate complex was deposited with a weight of (4.869g) with the filter paper…
A:
Q: A. What is your understanding of Miller indices and it's and it's significance to Solid State…
A: There are three states of matter that is solid, liquid and gas. All these states are…
Q: A Sodium Chloride (0.1920g) NaCl was assayed using volhard Method, using 52mL of 0.0975N AgN03 and…
A:
Q: Q3\\ Nickel bis-dimethylglyoximate complex was deposited with a weight of (2.721g) with the filter…
A: % Ni+2 in complex = ? We have given the mass of sample + filter paper = 2.721 g
Q: Twhat would be the order of elution I f H 3-nitrotoluicacid, 2-naphthol, and l,4-dimethoxgbenzene…
A: Chromatography is a physical method of separation in which the components of a mixture are…
Q: Dissolved 0.273 grams of pure sodium oxalate (Na2C204) in distilled water and added sulfuric acid…
A: The question is based on redox titrations. we have added excess of KMnO4 to the Sodium oxalate. the…
Q: what is the purpose of preparing of a standard sodium hydroxide solution in determination of purity…
A: We prepare a standard sodium hydroxide solution in determination of purity on impure KHP. Because we…
Q: A 516.7-mg sample containing a mixture of K,SO, and (NH,),SO, was dissolved in water and treated…
A: Weight of sample = 516.7 mg
Q: Dissolved 0.273 grams of pure sodium oxalate (Na2C204) in distilled water and added sulfuric acid…
A:
Q: In an ideal situation, what would the slope of a calibration curve be for an ISE experiment…
A: To determine the slope of a calibration curve be for an ISE experiment measuring K+, NO3-, Sc3+
Q: Nickel bis-dimethylglyoximate complex was depősited with a weight of (4.869g) with the filter paper…
A: % of Ni ions = ? Mass of complex + filter paper = 4.869 g Mass of filter paper = 1.30 g
Q: 8. Magnesium oxide is not very soluble in water, and is dif tult to titrate directly. I ts purity…
A: Reaction with water: Aluminum oxide is insoluble in water and does not react like sodium oxide and…
Q: If 30.0 mL of water that is 0.0500 M in Q is to be extracted with four 10.0 mL portions of an…
A: The final aqueous concentration in solvent extraction method is as shown below: Here, Initial and…
Q: (a) To optimize the assay's sensitivity to glycine, at what wavelengths should the excitation and…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Calculate the mole fractions of SO2•H2O, HSO3- and SO3 2- in solution at a pH of 3.0, characteristic…
A: Given: pH of 3.0 Total concentration of S(IV) in solution for 20 ppb SO2 in the gas phase.
Q: The weight of 7 ml of vinegar sample was 7.99 g, was required 31.0 ml of 0.3 M sodium hydroxide…
A: Now, the chemical reaction taking place is- CH3COOH + NaOH→CH3COONa + H2O Thus, 1 mole of acetic…
Q: What is the actual or real-life application of gravimetric titrimetry? Include the specific…
A: Gravimetric analysis is a Quantitative analysis. Gravimetric titrimetry determines the quantity of…
Q: In gravimetric analysis, co-precipitation occurs alongside with analyte precipitation, resulting in…
A: Distinguish the difference between occlusion andinclusion and compare them using diagrams
Q: Dissolved 0.273 grams of pure sodium oxalate (Na2C204) in distilled water and added sulfuric acid…
A: The overall reaction is, 2KMnO4+3H2SO4+5COOH2→K2SO4+2MnSO4+8H2O+10CO2↑ The overall ionic equation…
Q: In chromatographic separations the components in a mixture to separate into zones a O all of the…
A: Chromatography is a separation and identification technique of components of a given mixture.
Q: A spectrophotometric method for the quantitative analysis of Ni2 in pharmaceutical formulation…
A: Since you asked multiple questions, we will answer only first question for you. In order to get…
Q: Why is it necessary to buffer the solution with sodium acetate in the spectrophotometic…
A: To explain the reason of buffering the solution with sodium acetate in the spectrophotometric…
Q: Calculate the (Ex/GS) atomic ratio for 3s---3p (oppose) in Mg* at 3000k?
A: Given that For Mg+ Temperature = 3000K Orbital --- 3s - 3p
Q: A 0.6025 g sample was dissolved and the Ca2+ and Ba2+ ions present were precipitated as BaC2O4.H2O…
A:
Q: Is a quantitative separation of Zn2+ and Ag+ by electrolytic deposition feasible in principle? If so…
A: The species having a higher reduction potential will undergo reduction whereas the species having a…
Q: According to DHLL, the mean activity coefficient of MeX3 salt in 0.29 mol/L of NaCl is: O a. 0.052 O…
A: Question 1. Given, Concentration of NaCl = 0.29 mol/L Salt Type = M2X3
Q: Calculate the AH° of the borate dissolution at 25°C in kJ mol1, if the 22.12 mL of 0.025 M HCI…
A: Solution- Given data- T= 250C =298K ∆S0 = 61.14 J mol-1 K-1, gas constant = 8.314 J mol-1 K-1
Q: (a) Show that the equation AT, = -k;mB gives MB = -k,wg/ (AT,WA), where wg and wa are the masses of…
A:
Q: A 0.4020 g sample was dissolved, and Ca2+ and Ba2+ ions present were precipitated as Ba.C2O4.H2O and…
A:
Q: How many milliliters of 1.5% alcoholic dimethylglyoxime should be used to provide a 36.0% excess…
A:
Q: 3. In a preliminary experiment, a solution containing 0.083M X and 0.0666M S gave peak areas of A, =…
A: Given data: For solution: Ax = 423 As = 347 For the mixture: Ax = 553 As = 582
Q: - A sample of feldspar weighing 1.500g is decomposed, and eventually there is obtained a mixture of…
A: Amount of feldspar = 1.500 g Mixture of NaCl and KCl = 0.1801 g Concentration of AgNO3 =0.08333 N…
Q: A Sodium Chloride (0.1920g) NaCl was assayed using volhard Method, using 52mL of 0.0975N AGNO3 and…
A: Given that - Mass of NaCl = 0.1920 g Normality of AgNO3 = 0.0975 N Volume of AgNO3 = 52 mL…
Q: Gravimetric Problems A 516.7-mg sample containing a mixture of K,SO, and (NH,)SO, was dissolved in…
A: Given, Mass of sample: 516.7 mg=516.7×10−3 g BaSO4 yield = 863.5 mg The balanced chemical equation:…
Q: The conductivity of a saturated solution of SRSO4 at 298 K is found to be 1.482 x 104 S cm', while…
A: Given data : Conductivity of SrSO4(κ)=1.482×10-4Scm-1λ∞m(Sr2+)=118.92 Scm2mol-1λ∞m(SO42-)=159.6…
Q: Given the volume of 0.2000 M NAOH used determine the concentration of 10.00 ml sample each from…
A: Given, Volume of NaOH for Aq layer = 12.55 mL Volume of NaOH for Or layer = 15.27 mL Concentration…
Q: The Ksp values of two solid carbonates, A2CO3 and BCO3, were determined by preparing 250.0-mL…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Q1. Dissolved 0.273 grams of pure sodium oxalate (Na2C0.) In distilled water and added sulfuric acid…
A: The question is based on redox titrations. we have added excess of KMnO4 to the Sodium oxalate. the…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- what weight of betazole phosphotungstate might be expected in the assay of 0.1550 g sample of betazole hydrochloride containing 98% C5H9N3.2HC? Gravimetric factor = 0.0909For Indirect Iodometric Analysis of Copper... ~0.0896g KIO3 necessary to consume 350mL of 0.1 M Na2S2O3, Na2S2O3 is stored in an amber glass bottle until ready for use. Primary Standard KIO3 has 2g of KI, 50mL of DI water, and 10 mL of 1.0M HCl is added then immediately titrated with Na2S2O3 until medium yellow or straw... then 5mL of starch indicator is added and titrated again until blue black color turns clear. Unknown CuO use 1.2G of Unknown, 20mL of HNO3 heated until sample dissolved, 25 mL of DI water added and boiled until clear light blue color, after cooling 1:1 NH3 added (~34.47 mL of NH4OH reagent) until permanent deep blue color amine complex, 2g of NH4HF2 added and swirled until dissolved, 3 g of KI is added then titrated immediately with Na2S2O3 until brown color of iodide is nearly gone (brown milk color), 2 g of KSCN and 3 mL of starch indicator is then added with titration continuing until disappearance of new blue black color. 1. Na2CO3 is often added to thiosulfate…For Indirect Iodometric Analysis of Copper... ~0.0896g KIO3 necessary to consume 350mL of 0.1 M Na2S2O3, Na2S2O3 is stored in an amber glass bottle until ready for use. Primary Standard KIO3 has 2g of KI, 50mL of DI water, and 10 mL of 1.0M HCl is added then immediately titrated with Na2S2O3 until medium yellow or straw... then 5mL of starch indicator is added and titrated again until blue black color turns clear. Unknown CuO use 1.2G of Unknown, 20mL of HNO3 heated until sample dissolved, 25 mL of DI water added and boiled until clear light blue color, after cooling 1:1 NH3 added (~34.47 mL of NH4OH reagent) until permanent deep blue color amine complex, 2g of NH4HF2 added and swirled until dissolved, 3 g of KI is added then titrated immediately with Na2S2O3 until brown color of iodide is nearly gone (brown milk color), 2 g of KSCN and 3 mL of starch indicator is then added with titration continuing until disappearance of new blue black color. 4. Why is the starch indicator solution…
- Why is glass better than fused silica as a prism construction material for a monochromator to be used in the region of 400 to 80 nm?Six iron tablets containing FeSO4.7H2O were dissolved in 100-ml of 0.1M HNO3 with gentle heating. All of the Fe2+ is converted to Fe3+ by the strong oxidizing conditions. After the solution had cooled to room temperature , 2.5-ml of 35wt% NH4OH was added. The precipitate Fe2O3-xH2O that was filtered weighed 0.345g. Thermogravimetric analysis of the crude product showed a 10.5% weight loss . A. How many waters of hydration were in the precipitate B. How much iron is present in each tabletIn 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.
- hree components in a mixture have varying distribution constants between the mobile phase and the stationary phass One of the components has a very low distribution constant, Would this component likely elute first or last and how would you design an experiment or modify the components of the separation to make it perform in the opposite manner?Determine the percentage Fe in a sample of limonite from the following data:Sample : 0.5000g ; KMnO4 used = 50.00 ml ; 1.000ml of KMnO4 is equivalent 0.005317 g Fe,FeSO4 used = 6.00 ml; 1.000ml FeSO4 is equivalent 0.009200 g FeO ( ans 44.59 %)In an ideal situation, what would the slope of a calibration curve be for an ISE experiment measuring K+, NO3-, Sc3+?
- Ion exchange chromatography consists of? i. stationary phase with a matrix of charged ionizable functional groups ii. mobile phase consisting of a buffer at a certain pH iii. coloured fluorescent dye iv. analyte that requires an optimum wavelength A. ii and iii B. i and iv C. iii and iv D. i and iiTwo commonly used chromatography methods in labs are Nickel and streptavidin resin based colums. Explain which type of chromatography-ion exchange, size-exclusion, or affinity-these are, as well as their seperation mechanisms at a molecular level.A 0.4020 g sample was dissolved, and Ca2+ and Ba2+ ions present were precipitated as Ba.C2O4.H2O and CaC2O4H2O. The Oxalates were then heated in a thermogravimetric apparatus leaving a residue that weighed 0.3175 g in the range of 320°C to 440°C and 0.2165 g in the range of 580°C to 620°C. Calculate percentage Ca and percentage Ba in the sample.