The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2% O. The molar mass of this compound is 284.5 g/mol. What is the molecular formula of the compound? answer choices C10H6O C9H18O C18H36O2 C20H12O2 C16H28O4

Q: A unknown compound contains only carbon, hydrogen and oxygen. Combustion of 1.00 g this compound…

A: A unknown compound contains only Carbon(C), Hydrogen(H) and Oxygen(O) . Combustion of 1.00 g of this…

Q: N2+ 3H2 2NH3 How many moles of nitrogen (N2) are required to produce 97.3 grams of NH3 ? MM N2:…

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Q: Find the molecular formula of a compound that contains 30.45% nitrogen and 69.55% oxygen. The molar…

A: Molecular formula of the constituent elements is written as chemical symbol of elements. The number…

Q: A chemical compound containing only carbon, hydrogen and oxygen is found t composed of 57.43% C and…

A: Empirical formula:  Simplest mole number ratio of atoms present in a compound is called is called…

Q: Calculate the empirical formula of each substance from their spectrograms. 1) Co = 0.672 g, As…

A: Empirical formula can be calculated by - (A) Take % of different atoms. (B) devide % by Atomic mass.…

Q: How many O atoms are in 2.00 g  Al2O3 ? Al = 26.98 g/mole, O = 16.00 g/ mole

A: Recall the data, mass of Al2O3=2.00 g molar mass of Al=26.98 g/mole molar mass of O=16.00 g/ mole

Q: Combustion of 63.8 mg of a compound C,H,Oz produces 145.0 mg CO₂ and 59.38 mg H₂O. The molar mass of…

A: Check the number of moles in the given masses and use mol to mol ratio to convert moles in the mass.

Q: Calculate the mass (in g) of each of the following. 1) 6.24×1020 SO3 molecules 2) 2.9×1022 H2O…

A: Given, 1) 6.24×1020 SO3 molecules 2) 2.9×1022 H2O molecules 3) 4.9×1025 O3 molecules 4) 9.63×1019…

Q: A gaseous compound containing carbon and hydrogen was analyzed and found to consist of 83.65% carbon…

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Q: Mohamed Jama, determine the molecular formula of a compound that has a molar mass of 220.26 g/mol…

A: Given,empirical formula = C2H4O We know, molar mass of C = 12.01 g/mol , H = 1.008 g/mol , O = 16.00…

Q: Calculate the moles of Cl in 25.0 g of XYCl3 if the compound XYCl3 has a molar mass of 119.38 g/mol.

A: The above given molecule is a chlorine containing compound. As per the given formula the given…

Q: 19 How many moles are there in 2.00×10 Molecules of C Cly?

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Q: An organic compound has an empirical formula of C2H30 and had an approximate molecular weight 86.…

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Q: ntal analysis of 49.48% carbon, 5.190% hydrogen, 16.47% oxygen and 28.85% nitrogen. It has a molar…

A: From percent mass can be calculated, after knowing the mass it can be converted into moles and then…

Q: A compound was analyzed and found to contain 52.17% C, 13.13% H and 34.78% O. What is the empirical…

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Q: The empirical formula and molar mass of several compounds are listed. Find the molecular formula of…

A: Molecular formula can be calculculated by using below formula : Molar massg/molEmpirical formula…

Q: How many hydrogen atoms are in 5.0 g of citric acid (CóHg87)? O 1.6 x 10²² Hydrogen atoms O 4.6 ×…

A: Mass of Citric Acid = 5.0 gMolar mass of Citric Acid = 192.124 g/moleMoles of Citric Acid = Mass of…

Q: What is its molecular formula?

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Q: From the given molar mass and empirical formula of several compounds, find the molecular formula of…

A: Given  empirical formula = C4H9  molar mass = 114.17 g/mol

Q: What is the percent mass of carbon in H2C2O4? O 26.68% O 71.08% O 2.24% O 13.3%

A: The molecular formula of the given compound is = H2C2O4 The mass percent of carbon is =?

Q: A 10.68 g sample of compound that contains only carbon, hydrogen, and oxygen was analyzed through…

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Q: What is the empirical formula of a compound with a molecular formula of CH₁0N₂O4? C C₂H₂N₂O₂…

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Q: Combustion analysis of 1.200 g of an unknown compound containing carbon, hydrogen, and oxygen…

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Q: Which contains the greatest mass of oxygen?   0.75 mol of ethanol (2C H5 OH)   1.0 mol of water…

A: Which contains the greatest mass of oxygen?

Q: ↑ A compound has the empirical formula N O2 and has a molecular weight of 92 g/mol. The true formula…

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Q: Question 17 A compound contains 48.64% carbon, 8.16% hydrogen, and 43.20% oxygen by mass. What is…

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Q: Pheromones are a special type of compound secreted by the females of many insect species to attract…

A: Molecular formula of pheromone: C19H38O mass of pheromone (C19H38O) = 1.3 × 10-12 g Number of…

Q: Help me please

A: Number of moles of sulphuric acid = 8.21 moles. Number of molecules of sulphuric acid = ?

Q: A 2.05 g sample of an unknown compound contains H, S, and O. If the compound contains 0.050 gH and…

A: 3rd option is correct that is 58.5%

Q: The empirical formula and molar mass of several compounds listed. Find the molecular formula of each…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: The percent composition by mass of a compound is 68.8% C, 4.92% H, and 26.2% O The molar mass of…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: A compound has an empirical formula of CH3O and a molecular weight of 124 g, what is its molecular…

A: Empirical formula can be defined as the simplest whole number ratio of various atoms or elements…

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.