Calculate the percentage of sodium in sodium aluminium fluoride (Na3AlF6 ) correct to the nearest whole number. 9. 4. 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 [Pt = 195, N 14, H = 1, Cl 35.5] (b) A flask contains 6.6 g of carbon dioxide. A-3.1 Reagents A-3.1.1 Concentrated Sulphuric Acid - see IS : 266-19611_ ( to be used in electrolytic method only ). What is the mass of nitrogen in 1000 kg of urea [CO(NH2 )2 ]. Potassium Chloroplatinate found in: Chloroplatinate Solution, Potassium Hexachloroplatinate (IV), Potassium hexachloroplatinate(IV), >=99.9% trace.. See more Platinum products. Calculate the percentage of ammonia in the a sample of 0.2115 g gave rise to 0.4693 g platinum. Chemistry. Find the percentage of platinum in ammonium chloroplatinate (in) Calculate the percentage of platinum in ammonium chloroplatinate (NH. Calculate the percentage of nitrogen in aluminium nitride. (b) The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% phosphorus and 39% oxygen. The whole The precipitate was filtered, washed free of precipitating agent, dried, and weighed, and 0.5718 g was recovered. 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. (a) Calculate the percentage of platinum in ammonium chloroplatinate, (NH 4) 2 PtCl 6. 2.15% Hydrogen and 85.18% Bromine. Platinum Calculator Instructions. (ii) The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% Phosphorus and 39% oxygen. 5. Calculate the percentage of platinum in ammonium chloroplatinate (NH4 )2 PtCl6 (Give your answer correct to the nearest whole 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 nitrogen in aluminium nitride. Method provides enhancing of platinum extraction degree. 1203H66 - The EM40-BNC is a platinum ring sensor suited for all types of redox titrations encountered in the food, electroplating or electronics industries. Platinum is then precipitated from this solution as ammonium chloroplatinate. Exercise | Q 10 | Page 119. A-3.0.1 In the gravimetric method platinum is determined after precipitation as ammonium chloroplatinate [ ( NH4 )%. Calculate the percentage of phosphorus in the fertilizer super phosphate, Ca(h2PO4)2. ). 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. (d) (i) 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: The precipitate decomposes on ignition, yielding metallic platinum and gaseous. A gaseous … Ammonium chloroplatinate is precipitated from chloroplatinic acid solution with excess of ammonium chloride, washed out and calcined. A red solid, it is an important commercial source of platinum, usually as an aqueous solution.Although often written in shorthand as H 2 PtCl 6, it is the hydronium (H 3 O +) salt of the hexachloroplatinate anion (PtCl 2− 6). "(NH"_4)_2"Cr"_2"O"_7" When there is no written subscript, it is understood to be 1. Calculate the percentage of sodium in sodium aluminium fluoride (Na 3 AlF 6) … 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 is an attractive silvery white metal with a melting point of 1,774 deg C, a boiling point of 3,827 deg C and a density of 21.45 g/cu cm at room temperature. 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 - 2. 6. 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. …free fatty acid content of edible oils. It is a rare example of a soluble platinum(IV) salt that is not hygroscopic. (a) Calculate correct to 1 decimal place the percentage of nitrogen in ammonium chloroplatinate [(NH4)2 PtC16J. 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. EFFECT: improved preparing method. Determine the percentage of oxygen in ammonium nitrate (O = 16). (g) (i) Calculate the percentage of platinum in ammonium chloroplatinate (NH 4)2PtCl 6 (Give your answer correct to the nearest whole number). Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. 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. (N = 14, H = 1, Cl = 35.5, Pt = 195). Find its molecular formula. F. BASED ON EMPIRICAL FORMULA AND MOLECULAR FORMULA . Calculate the percentage of platinum in ammonium chloroplatinate (NH 4) 2 PtCl 6. Calculate the percentage of platinum in ammonium chloroplatinate (NH4 )2 PtCl6 (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.) It forms intensely yellow solutions in water. Find the empirical 1. Platinum (atomic symbol: Pt, atomic number: 78) is a Block D, Group 10, Period 6 element with an atomic weight of 195.084. Find the empirical formula of the compound. (N = 14, H = 1, Cl = 35.5, Pt = 195) Find the empirical formula of the compound (work to upto two decimal places). Platinum (atomic symbol: Pt, atomic number: 78) is a Block D, Group 10, Period 6 element with an atomic weight of 195.084. Also, when elements are enclosed in parentheses, the subscripts on the inside are multiplied by the number … (N = 14, H = 1, Cl = 35.5, Pt = 195) Answer: 2005. (ii) The percentage composition of sodium phosphate as determined by analysis is 42.1% sodium, 18.9% Phosphorus and 39% oxygen. [N = 14, H = 1, Pt = 195, Cl =35.5] (Give your answer correct to the nearest whole number) VIEW SOLUTION. Calculate the percentage of platinum in ammonium chloroplatinate (NH 4) 2 PtCl 6. Alibaba.com offers 828 ammonium chloroplatinate products. 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. (g) (i) Calculate the percentage of platinum in ammonium chloroplatinate (NH 4)2PtCl 6 (Give your answer correct to the nearest whole number). 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 percentage of platinum in ammonium chloroplatinate (NH4)2PtCl6 is : [ N = 14, H = 1, Cl = 35.5, Pt = 195 ] 7. you have 0.4693g Pt. Calculate the percentage of platinum in ammonium chloroplatinate, (NH 4) 2 PtCl 6. (Al = 27, N = 14). (ii) The number of molecules of carbon dioxide present in the flask. 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. 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. [N = 14, H = 1, Pt = 195, Cl =35.5] (Give your answer correct to the nearest whole number), Molecular formula of ammonium chloroplatinate (NH4)2PtCl6 :2 x (atomic mass of N + 8 x atomic mass of H) + atomic mass of platinum + 6 x atomic mass of chlorine2 x (14 + 8 ) + 195 + 6 x 35.3= 444444 parts of ammonium chloroplatinate contains 195 parts by weight of platinumSo, 100 parts will contain = 195 x 100/444 = 43.9‰ = 44‰. Carl von Sickingen researched platinum extensively in 1772. (ii) The number of molecules of carbon dioxide present in the flask. See more Platinum products. asked Feb 28, 2019 in Chemistry by Anjal (76.7k … 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 of … Platinum (atomic symbol: Pt, atomic number: 78) is a Block D, Group 10, Period 6 element with an atomic weight of 195.084. [N = 14, H = 1, Pt = 195, Cl = 35.5] (Give your answer correct to the nearest whole number.) Get accurate and reliable results with this specially suited sensor. Calculate the percentage of KCl in the sample. Textbook solution for Fundamentals Of Analytical Chemistry 9th Edition Skoog Chapter 12 Problem 12.22QAP. [N = 14, H = 1, Pt = 195, Cl =35.5] (Give your answer correct to the nearest whole number) asked Feb 28, 2019 in Chemistry by Anjal ( 76.7k points) mole concept 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 a sample if 0.2490 g gave rise to 0.4943 g of platinum. 6. % NH3. calculate the percentage of ammonia in a sample if 0.2115g gave rise to 0.4693g platinum.? products: Calculate the percentage of ammonia in a sample if 0.2115 g gave rise to 0.4693 g of platinum. Platinum is then precipitated from this solution as ammonium chloroplatinate. 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). 6. US \$20.00-\$200.00 / Kilogram 1 Kilogram ... mainly located in Asia. (N = 14, H = 1, Cl = 35.5, Pt … Trevor H. Lv 7. An organic compound with vapour density = 94 contains C = 12.67%, H = 2013% amd Br = 85.11%. [N = 14, H = 1, Pt = 195, Cl =35.5] (Give your answer correct to the nearest whole number) Solution 2002-2. Urea [NH2CONH2 ] or ammonium phosphate [(NH4 )3PO4 ] [K = 39, P = 31, O = 16, N = 14, H = 1]. Ammonium hexachloroplatinate (NH4)2PtCl6, owing to its low solubility in NH4Cl containing aqueous solutions, is an intermediate compound during the hydrometallurgical extraction of platinum. Store in a cool, dry place and oxidize it as the need for fresh catalyst arises. Calculate the percentage of carbon in the sample if 0.6006 g of BaCO3 was formed. Calculate the percentage of Hg2Cl2 in the sample. (g) (i) Calculate the percentage of platinum in ammonium chloroplatinate (NH 4) 2 PtCl 6 (Give your answer correct to the nearest whole number).