The precipitate was filtered, washed free of precipitating agent, dried, and weighed, and 0.5718 g was recovered. [N = 14, H = 1, Pt = 195, Cl =35.5] (Give your answer correct to the nearest whole number) Solution 2002-2. calculate the percentage of ammonia in a sample if 0.2115g gave rise to 0.4693g platinum.? [N = 14, H = 1, Pt = 195, Cl =35.5] (Give your answer correct to the nearest whole number) PtCle 1. Platinum is then precipitated from this solution as ammonium chloroplatinate. Ammonaical nitrogen can be determined by treatment of the sample with chloroplatinic acid; the product is slightly soluble ammonium chloroplatinate: H2PtCl6 + 2NH4^+ --->(NH4)2PtCl6 + 2H^+ The precipitate decomposes on ignition,yielding metaalic platinum and gaseous products: … Calculate the percentage of platinum in ammonium chloroplatinate (NH 4) 2 PtCl 6 (Give your answer correct to the nearest whole number). Calculate the percentage of phosphorus in the fertilizer super phosphate, Ca(h2PO4)2 Alibaba.com offers 828 ammonium chloroplatinate products. Synonym: Hexachloroplatinic acid solution, Hydrogen hexachloroplatinate(IV) solution, Platinic chloride solution, Platinum(IV) chloride solution Linear Formula: H 2 PtCl 6 Molecular Weight: 409.81 Molar mass Pt = 195.08g/mol. Calculate the percentage of platinum in ammonium chloroplatinate (NH 4) 2 PtCl 6 (Give your answer correct to the nearest whole number). Ammoniacal nitrogen can be determined by treatment of the sample with chloroplatinic acid; the product is slightly soluble ammonium chloroplatinate: H2PtCl6 + 2NH4+ = (NH4)2PtCl6 + 2H+ The percipitate decomposes upon ignition, yielding metallic platinum and gaseous products: (NH4)2PtCl6 = Pt(s) + 2Cl2(g) + 2NH3(g) + 2HCl(g) What is the percentage of ammonium in a sample of 0.2213g … The number of electrons in each of platinum's shells is [2, 8, 18, 32, 17, 1] and its electron configuration is [Xe] 4f 14 5d 9 6s 1. The precipitate decomposes on ignition, yielding metallic platinum and gaseous products: (NH4)2PtCl6 --> Pt(s) + 2Cl2(g) + 2NH3(g) + 2HCl(g) Calculate the percentage of ammonia in a sample if 0.2115g gave rise to 0.4693g of platinum. [N = 14, H = 1, Pt = 195, Cl =35.5] (Give your answer correct to the nearest whole number) VIEW SOLUTION. To use the platinum calculator simply select the weight unit, select the platinum purity, enter the weight of your platinum item, and then click the calculate button. Calculate the volume of CO2 at 10.0°C and 746 mmHg pressure obtained by treating 25.0 g of Na2CO3 with an excess of hydrochloric acid. Ammonium hexachloroplatinate, also known as ammonium chloroplatinate, is the inorganic compound with the formula (NH 4) 2 [PtCl 6]. Platinum (atomic symbol: Pt, atomic number: 78) is a Block D, Group 10, Period 6 element with an atomic weight of 195.084. Store in a cool, dry place and oxidize it as the need for fresh catalyst arises. 2 x (14 + 8 ) + 195 + 6 x 35.3= 444. (a) Calculate the percentage of platinum in ammonium chloroplatinate, (NH 4) 2 PtCl 6. If you are looking to buy or sell platinum then it can be helpful to enter a profit/loss percentage. Students also viewed these Chemical Engineering questions . If the relative molecular mass of ammonium nitrate is 80, calculate the percentage of nitrogen and oxygen in ammonium nitrate. Platinum (atomic symbol: Pt, atomic number: 78) is a Block D, Group 10, Period 6 element with an atomic weight of 195.084. Calculate the percentage of platinum in ammonium chloroplatinate (NH 4) 2 PtCl 6. The crude platinum sponge is subjected to purification to obtain 99.9%pure platinum with an overall recovery of 97.2 percent. [H =1, N =14, Na = 23, P = 31, Cl = … Potassium Chloroplatinate found in: Chloroplatinate Solution, Potassium Hexachloroplatinate (IV), Potassium hexachloroplatinate(IV), >=99.9% trace.. Textbook solution for Fundamentals Of Analytical Chemistry 9th Edition Skoog Chapter 12 Problem 12.22QAP. Ammoniacal nitrogen can be determined by treatment of the sample with chloroplatinic acid; the product is slightly soluble ammonium chloroplatinate: H2PtCl6+ 2NH4+ --> (NH4)2PtCl6 + 2H The precipitate decomposes on ignition, yielding metallic platinum and gaseous products: (NH4)2PtCl6 --> Pt(s) +2Cl2(g) +2NH3(g)+ 2HCl(g) Calculate the percentage of ammonia in a sample if 0.2115 g … Calculate the percentage of ammonia in the a sample of 0.2115 g gave rise to 0.4693 g platinum. Ammonium chloride is added to precipitate the pure platinum compound, which is calcined to pure metal. It forms intensely yellow solutions in water. (b) The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% phosphorus and 39% oxygen. Calculate the percentage of platinum in ammonium chloroplatinate (NH4 )2 PtCl6 (Give your answer correct to the nearest whole number). (ii) The number of molecules of carbon dioxide present in the flask. Calculate the percentage of nitrogen in aluminium nitride. A-3.1.2 Ammonium Chloride - saturated solution. Calculate the percentage of platinum in ammonium chloroplatinate (NH 4) 2 PtCl 6. (ii) The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% Phosphorus and 39% oxygen. The sensor is suited for… In the presence of 1M NH 4 Cl, its solubility is only 0.0028 g/100 mL. precipitation of ammonium chloroplatinate which was then dried; at refinery C dry ammonium chloroplatinate washandled, mostly underexcellent exhaust ventilation, though where the salt was crushed this was less good, and at refinery D ammoniumchloroplatinate, after precipitation, was ignited to form spongy platinum. The precipitate decomposes on ignition, yielding metallic platinum and gaseous products: (NH 4) 2 PtCl 6 →Pt(s) + 2Cl 2 (g) + 2NH 3 (g) + 2HCl(g) Calculate the percentage of ammonia in a sample if 0.2115 g gave rise to 0.4693 g of platinum. 6. 2. (N = 14, H = 1, Cl = 35.5, Pt = 195). This is calcined and the impure sponge re-dissolved. asked Feb 28, 2019 in Chemistry by Anjal (76.7k … 2.15% Hydrogen and 85.18% Bromine. Find its molecular formula. 9. We have step-by-step solutions for your textbooks written by Bartleby experts! Ammonium hexachloroplatinate (NH4)2PtCl6, owing to its low solubility in NH4Cl containing aqueous solutions, is an intermediate compound during the hydrometallurgical extraction of platinum. Also, when elements are enclosed in parentheses, the subscripts on the inside are multiplied by the number … The precipitation of ammonium chloroplatinate from the leach liquor is achieved efficiently only when any nitrosyl complex of platinum present is decomposed by repeated treatment with hydrochloric acid. Calculate the percentage of sodium in sodium aluminium fluoride (Na3AlF6 ) correct to the nearest whole number. platinum solution metals ammonium acid Prior art date 1958-12-24 Legal status (The legal status is an assumption and is not a legal conclusion. (ii) The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% Phosphorus and 39% oxygen. Find the empirical formula of the compound (work to upto two decimal places). Find its empirical formula (Atomic mass of C = 12, H = 1, Br=80). So if you add the amount you need to saturate 1L of water at 25 o C to 1L of water, which is 541.8 g of ammonium sulfate, you will not get a saturated solution. He succeeded in making malleable platinum by alloying it with gold, dissolving the alloy in aqua regia, precipitating the platinum with ammonium chloride, igniting the ammonium chloroplatinate, and hammering the resulting finely divided platinum to make it cohere. Favorite Answer. Calculate the percentage of platinum in ammonium chloroplatinate (NH4 )2 PtCl6 (Give your answer correct to the nearest whole number). Urea [NH2CONH2 ] or ammonium phosphate [(NH4 )3PO4 ] [K = 39, P = 31, O = 16, N = 14, H = 1]. 1 answer. (Al = 27, N = 14). 0.4693(1/(14+1+1+1))= 0.0276 0.0276(2)(159)= 8.778 8.778/0.2115= 41.5% Chloroplatinic acid (also known as hexachloroplatinic acid) is an inorganic compound with the formula [H 3 O] 2 [PtCl 6](H 2 O) x (0 ≤ x ≤ 6). Synonym: Hexachloroplatinic acid solution, Hydrogen hexachloroplatinate(IV) solution, Platinic chloride solution, Platinum(IV) chloride solution Linear Formula: H 2 PtCl 6 Molecular Weight: 409.81 (ii) The number of molecules of carbon dioxide present in the flask. EFFECT: improved preparing method. (g) (i) Calculate the percentage of platinum in ammonium chloroplatinate (NH 4)2PtCl 6 (Give your answer correct to the nearest whole number). 444 parts of ammonium chloroplatinate contains 195 parts by weight of platinum. Find the empirical formula of the compound (work to upto two decimal places). The percentage composition of sodium phosphate, as determined by analysis is: 42.1% Na, 18.9% P, 39% of O. Find the empirical formula of the compound. Question 1. 9. The solution is treated with ferrous chloride to remove gold and to the filtered solution is then added ammonium chloride to precipitate crude ammonium chloroplatinate. [N = 14, H = 1, Pt = 195, Cl = 35.5] (Give your answer correct to the nearest whole number.) It is a rare example of a soluble platinum(IV) salt that is not hygroscopic. The precipitate decomposes on ignition, yielding metallic platinum and gaseous products: (NH4)2PtCl6 --> Pt(s) + 2Cl2(g) + 2NH3(g) + 2HCl(g) Calculate the percentage of ammonia in a sample if 0.2115g gave rise to 0.4693g of platinum. The top countries of supplier is China, from which the percentage of ammonium platinum chloride supply is 100% respectively. Click hereto get an answer to your question ️ A compound contains 12.67% Carbon. An organic compound with vapour density = 94 contains C = 12.67%, H = 2013% amd Br = 85.11%. (N = 14, H = 1, Cl = 35.5, Pt = 195) Ammoniacal nitrogen can be determined by treatment of the sample with chloroplatinic acid; the product is slightly soluble ammonium chloroplatinate: The precipitate decomposes on ignition, yielding metallic platinum and gaseous. [N= 14,H= l,Pt= 195,C1 = 35.5] 0. 6. Find the empirical formula of the compound (work to upto two decimal places). Calculate the percentage of platinum in ammonium chloroplatinate (NH 4) 2 PtCl 6. The molar mass of ammonium dichromate is "252.06 g/mol" To calculate the molar mass of a compound, you multiply the subscripts of each element times its molar mass (atomic weight in g/mol). Calculate the percentage of platinum in ammonium chloroplatinate (NH4 )2 PtCl6 (Give your answer correct to the nearest whole number). 2 x (atomic mass of N + 8 x atomic mass of H) + atomic mass of platinum + 6 x atomic mass of chlorine. The whole See more Platinum products. Exercise | Q 10 | Page 119. Calculate : (i) The number of moles of carbon dioxide present in the flask. If one started with 64g of platinum coins (Pt, 195g/mole, 0.328mole), one should end up with slightly less than 0.328 mole of ammonium chloroplatinate ((NH4)2PtCl6, 443.9g/mole), or about 140g. Find the empirical The percentage composition of sodium phosphate, as determined by analysis is : 42.1% Na, 18.9% P, 39% of O. Vapour Density and Its Relation to Relative Molecular Mass: Chapter 5: Mole Concept And Stoichiometry - Exercise [Page 119], CBSE Previous Year Question Paper With Solution for Class 12 Arts, CBSE Previous Year Question Paper With Solution for Class 12 Commerce, CBSE Previous Year Question Paper With Solution for Class 12 Science, CBSE Previous Year Question Paper With Solution for Class 10, Maharashtra State Board Previous Year Question Paper With Solution for Class 12 Arts, Maharashtra State Board Previous Year Question Paper With Solution for Class 12 Commerce, Maharashtra State Board Previous Year Question Paper With Solution for Class 12 Science, Maharashtra State Board Previous Year Question Paper With Solution for Class 10, CISCE ICSE / ISC Board Previous Year Question Paper With Solution for Class 12 Arts, CISCE ICSE / ISC Board Previous Year Question Paper With Solution for Class 12 Commerce, CISCE ICSE / ISC Board Previous Year Question Paper With Solution for Class 12 Science, CISCE ICSE / ISC Board Previous Year Question Paper With Solution for Class 10. acid; the product is a slightly soluble ammonium chloroplatinate H 2 PtCl 6(aq) 2N H 4 + (aq) ( ) 2 tCl s + + + The precipitate decomposes on ignition, yielding metallic platinum and gaseous products ( NH 4) 2 PtC l 6 (s) Pt (s) + 2H 3 g) Cl 2 Calculate the percentage of ammonia in a sample if 0.2115 g gave rise to 0.4693 g of platinum. Calculate the percentage of carbon in the sample if 0.6006 g of BaCO3 was formed. [Pt = 195, N 14, H = 1, Cl 35.5] (b) A flask contains 6.6 g of carbon dioxide. Find the empirical formula of the compound (work to upto two decimal places). (a) Calculate correct to 1 decimal place the percentage of nitrogen in ammonium chloroplatinate [(NH4)2 PtC16J. Related Search: platinum ii chloride fruit cane yellow sapphire ring for women. Chemistry. A 0.2121-g sample of an organic compound was burned in a stream of oxygen, and the CO2 produced was collected in a solution of barium hydroxide. The precipitation of ammonium chloroplatinate from the leach liquor is achieved efficiently only when any nitrosyl complex of platinum present is decomposed by repeated treatment with hydrochloric acid. % NH3. Calculate the percentage of ammonia in a sample if 0.2490 g gave rise to 0.4943 g of platinum. Calculate the percentage of phosphorus in the fertilizer super phosphate, Ca(h2PO4)2. (b) The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% phosphorus and 39% oxygen. Ammonium chloroplatinate is precipitated from chloroplatinic acid solution with excess of ammonium chloride, washed out and calcined. See more Platinum products. What is the mass of nitrogen in 1000 kg of urea [CO(NH2 )2 ]. See more Platinum products. 4. The percentage of platinum in ammonium chloroplatinate (NH4)2PtCl6 is : [ N = 14, H = 1, Cl = 35.5, Pt = 195 ] A-3.1 Reagents A-3.1.1 Concentrated Sulphuric Acid - see IS : 266-19611_ ( to be used in electrolytic method only ). (N = 14, H = 1, Cl = 35.5, Pt … A wide variety of ammonium chloroplatinate options are available to you, The number of electrons in each of platinum's shells is [2, 8, 18, 32, 17, 1] and its electron configuration is [Xe] 4f 14 5d 9 6s 1. Platinum catalyst CAS 16919-58-7 AMMONIUM CHLOROPLATINATE . 1203H66 - The EM40-BNC is a platinum ring sensor suited for all types of redox titrations encountered in the food, electroplating or electronics industries. Ammonaical nitrogen can be determined by treatment of the sample with chloroplatinic acid; the product is slightly soluble ammonium chloroplatinate: calculate the percentage of ammonia in a sample if 0.2115g gave rise to 0.4693g platinum.? asked Feb 28, 2019 in Chemistry by Anjal ( 76.7k points) mole concept (ii) The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% Phosphorus and 39% oxygen. 1 decade ago. 12-23 A 0.6447-g portion of manganese dioxide was added to an acidic solution in which 1.1402 g of a chloride-containing sample was dissolved. [Pt = 195, N 14, H = 1, Cl 35.5] (b) A flask contains 6.6 g of carbon dioxide. pllzz ans 2nd no link pllzz compound is czH204 PRACTICE PROBLEMS-IV I Calculate the (a) empirical formula, and (b) molecular formula of a compound having the Sodium = 42 10/0, phosphorus = 18 9% and oxygen = 39 % Given that the molecular mass of the - Chemistry - Calculate the percentage of platinum in ammonium chloroplatinate (NH. Calculate the percentage of platinum in ammonium chloroplatinate (NH 4) 2 PtCl 6 (Give your answer correct to the nearest whole number). Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) (ii) The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% Phosphorus and 39% oxygen. asked Feb 28, 2019 in Chemistry by Anjal (76.7k points) mole concept ; stoichiometry; icse; class-10; 0 votes. Calcined to pure metal in a sample if 0.2115g gave rise to 0.4693g platinum. 100/444! 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Platinum with an overall recovery of 97.2 percent 1000 kg of urea [ CO ( NH2 2! G gave rise to 0.4693g platinum. your answer correct to 1 decimal place the percentage of platinum in chloroplatinate... Contain = 195 ) after precipitation as ammonium chloroplatinate [ ( NH4 %... Kg of urea [ CO ( NH2 ) 2 PtCl6 ( Give your correct... 28, 2019 in Chemistry by Anjal ( 76.7k points ) mole concept ; stoichiometry ; icse class-10! Students can interact with teachers/experts/students to get solutions to their queries its solubility is only g/100... Catalyst arises to precipitate the pure platinum with an excess of ammonium platinum chloride supply is 100 %.! Aluminium fluoride ( Na3AlF6 ) correct to 1 decimal place the percentage of platinum in nitrate. Percentage of ammonia in a sample if 0.2115 g gave rise to 0.4693g platinum?. For Fundamentals of Analytical Chemistry 9th Edition Skoog Chapter 12 Problem 12.22QAP sponge is to! Textbooks written by Bartleby experts solution in which 1.1402 g of a soluble (! With teachers/experts/students to get solutions to their queries = 43.9‰ = 44‰ a. Of phosphorus in the flask, washed out and calcined only 0.0028 g/100.. = 43.9‰ = 44‰ sample of 0.2115 g gave rise to 0.4693g platinum. ( NH 4 ) PtCl6. H2Po4 ) 2 ] aluminium fluoride ( Na3AlF6 ) correct to the accuracy of the listed. Ii chloride fruit cane yellow sapphire ring for women we have step-by-step solutions for your textbooks by... Gaseous … calculate the percentage of platinum in ammonium chloroplatinate contains 195 parts by weight of platinum in ammonium (...