Caffeine,a stimulant found in coffee,tea and chocolate,contains 49.48% carbon,5.15% hydrogen,28.87% nitrogen,and 16.49% oxygen by mass and has a molar mass of 194.2g/mol.Determine the molecular formula of caffeine.

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Q: Calculate the mass in grams of 1 glucose molecule ( C6H12O6)

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A:

Q: Menthol is a flavoring agent extracted from peppermint oil. It contains C, H, and O. In one…

A: no of moles=mass/molar mass General Empirical formula  Cx H 2x Oy

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Q: Phosphorus pentachloride, PCIs, a white solid that has a pungent, unpleasant odor, is used as a…

A: mole is equal to weight of substance divide by it's molar mass

Q: When 4.673 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 16.05 grams…

A: Given: Mass of compound burned = 4.673 g. Mass of CO2 produced = 16.05 g. Mass of H2O produced =…

Q: Compound: CH₁₂ ELEMENT ATOMIC MASS X X X X # of ATOMS MOLAR MASS: SUB TOTAL % COMPOSITION

A: Dear student since you have posted multiple questions we will solve only first question for you if…

Q: What amount (moles) is represented by each of these samples? 32.2 mg caffeine, CaH10N4O2 Amount =…

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Q: A compound has an empirical formula of C2H4O and a molar mass of 88.g/mole. What is the molecular…

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Q: (Mass of crucible is 24.98g. The mass of the cover is 11.36g. The mass of the crucible, cover, and…

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Q: Nitric acid is used in the production of fertilizer as well as nitroglycerin.  Convert 2.9 x 1021…

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Q: Calculate the mass of 3.62 x 1024 molecules of Vitamin A which has a molar mass of 180g/mole. O 1.08…

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Q: Caffeine, an extremely popular chemical amongst students and teachers alike, is composed of four…

A: Given, carbon  49.48 % hydrogen  5.19 % nitrogen 28.85 % oxygen  16.48 %

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Q: When 5.974 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 18.74 grams…

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Q: What is the mass, in grams, of 6.5 x 10-3 moles of ammonium phosphate? 1.35 g 0.97 g 0.85 g 0.73 g

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Q: 2HCN9) + 6H,0 (9) 302(9) 4. How many Liters of HCN gas can form from the reaction of 1.56 x 106…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.