A common over-the-counter drug has a mass percent of 80.48% C, 8.79% H, and 13.03% O. If the molecular mass is ~300 g/mol, what is the molecular formula for this?
A common over-the-counter drug has a mass percent of 80.48% C, 8.79% H, and 13.03% O....
10. A compound has the following percent composition by mass: C: 40.92%; H: 4.58%: O: 54.50%. Calculate the molecular formula if Its molar mass is 216 g/mole.
A certain anesthetic contains 64.9 percent C, 13.5 percent H, and 21.6 percent O by mass. At 122 °C and 783 mmHg, 2.70 L of the gaseous compound weighs 6.37 g. What is the molecular formula of the compound?
A certain anesthetic contains 64.9 percent C. 13.5 percent H. and 21.6 percent O by mass. At 116 degree C and 8- mmHg. 1.70 L of the gaseous compound weighs 3.71 g, What is the molecular formula of the compound?
A compound composed of 3.3% H, 19.3% C, and 77.4% O has a molar mass of approximately 60 g/mol. What is the molecular formula of the compound? molecular formula: HCO Draw the Lewis structure of the compound where the H atom(s) are bonded to O atom(s). Select Draw Rings More Erase How many o and a bonds are in the compound? o bonds: Activate Windows Go to Settings to activate vind a bonds:
What is the percent nitrogen in (NH4)₂O? Find the empirical formula of each. of the following: a) 55.37K, 14.6% P, 30.170 b.) 24.57. Na, 14.97 Si, 60.6%F C) 62.1% C, 5.217 H, 12.17N, 20.770 ) What is the molecular formula for each? a.) Empirical formula NH₂ Cl, molar mass = 51.5 g/mol 009 b.) Empirical formula Hco, molar mass=90.0g/mol c.) Empirical formula C₂H ₂ O molar mass = 88 g/mol The headache remedy ibuprofen is 75.79 8.8%H, and 15.5%0. It...
15. The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2%0. The molar mass of this compound is 284.5 g/mol. What is the molecular formula of the compound? A) C1oHO B) C9H10 C) C16H30, D) C20H30, E) C13H4O2 16. The percent composition by mass of an unknown chlorinated hydrocarbon was found to be 37.83% , 6.35% H, and 55.83% Cl by mass. What is the empirical formula of this compound? A) CH.CIB) CH,CIC) CH.Cl? D)...
onent of protein called threonine has an approximate molar mass of 120 g/mole. If the percent sition is as follows, find the empirical and molecular formulas of threonine? C = 40.33%, H = 7.616%, O = 40.29% and N = 11.76% aethyllead, the "lead" additive in leaded gasoline, has a percent composition by mass of 64.06% Pb, 29.71 % C and 6.23% H. What is the empirical formula of tetraethyllead? A 50.51 g sample of a compound made from iron...
6. A certain compound has the following elemental composition: C, H, O, N. In a combustion analysis, 3.895 g of it was combusted to produce 9.087 g of CO2 and 3.411 g H20. Separate analysis determined that it is 12.38% N, and its molar mass is 226.4 g/mol. Determine its empirical and molecular formula. 6. A certain compound has the following elemental composition: C, H, O, N. In a combustion analysis, 3.895 g of it was combusted to produce 9.087...
Acetic acid has a molar mass of 60.05 g/mol and consists of 40,00% C, 6.714% H, and 53.29% O. What is the molecular formula of acetic acid? Multiple Choice O Cззэн 660ззз C3H603 оооо
Lactic acid is produced upon physical activity. The percent composition of lactic acid is 40.0%C, 6.71%H, and 53.3%O. a) Determine the empirical formula of lactic acid. b) If the molar mass of lactic acid is 90.08 g/mol, what is the molecular formula for this compound?