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Chemistry
- Serotonin (μ=176 g/mol) transmits nerve impulses be-tween neurons. It contains 68.2 mass % C, 6.86 mass % H, 15.9mass % N, and 9.08 mass % O. What is its molecular formulaarrow_forwardAcetaminophen (pictured) is a popular nonaspirin, "over-the-counter" pain reliever. What is the mass % (calculate to 4 significant figures) of each element in acetaminophen? % C % H % N % 0 H C- N-arrow_forwardThe molar mass of calcium hydroxide, Ca(OH)2, is O 54.02 g/mole O 58.09 g/mole O 114.2 g/mole 74.10 g/molearrow_forward
- How many g of Al2(SO4)3 can you prepare from 2.5 g of H2SO4 ?arrow_forwardWhat is the mass percent of ethanol (CH3CH2OH) if 0.0789 moles of ethanol is added to 0.271 kg of water?arrow_forwarda) The molecular formula of allicin, the compound responsible for the characteristic smell of garlic, is C6H10OS2. i. Calculate the weight percentage of C in allicin. Calculate S atoms that are present in 5 mg of allicin. ii.arrow_forward
- Methane and ethane are the two simplest hydrocarbons.What is the mass % C in a mixture that is 40.0% methane and 60.0% ethane by mass?arrow_forwardTerephthalic acid is an important chemical used in the manufacture of polyesters and plasticizers. Itcontains only C, H, and O. Combustion of 19.81mg terephthalic acid produces 41.98 mg CO2 and 6.45 mg H2O. If 0.250 mole of terephthalic 41.98 mg CO2 and 6.45 mg H2O. If 0.250 mole of terephthalic acid has a mass of 41.5 g, determine the molecular formula for terephthalic acid.arrow_forwardPlain carbon steel might have a mass percentage of 0.3% carbon (C) by weight; the rest is iron (Fe). You have 500g sample of carbon steel. What is the mole fraction of C in the carbon steel?arrow_forward
- Sodium hypochlorite (NaClO) is the active ingredient in bleaching agents. What is the percentage composition of chlorine in NaClO? show your solution poarrow_forwardAssuming one mole of compound, calculate the theoretical percentage composition of P₂O3. O P: 56.4% and O: 43.6% O P: 43.6% and O: 56.4% O P: 39.2% and O: 60.8% O P: 46.8% and O: 53.2%arrow_forward6 NaOH + 2AL --> 2Na3 ALO3+3H2 how may moles of Na3 ALO3 can be formed from 90.0 g of sodium hydroxide?arrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning