Analysis of a compound containing only C and Br indicates that it contains 7.0% by mass of carbon and has a molar mass of 515.5 g/mol. What is the molecular formula of this compound? O Empirical: CBr2: Molecular: CBR2 O Empirical: CBr6s: Molecular: C2Br13 Empirical: CBr2: Molecular: C3Bro O Empirical: CBr3; Molecular: C3B19 O Empirical: CBr3: Molecular: C4Br12

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: Given :-  Percent composition of Zn = 23.4 %  Percent composition of As = 53.7%  Percent composition…

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: 5. If a hydrocarbon compound has a formula mass of 16.04g, what is its empirical formula? О СН2 O…

A: Given :-  Empirical formula  CH2  CH4  C2H2  CH3 Empirical Formula mass = 16.04 g  To identify :-…

Q: A compound contains 36.68 %C, 2.309 %H, and 61.01 %Br (by mass). Determine the empirical formula of…

A: Element C H Br Mass % 36.68 2.309 61.01 moles 36.6812 2.3091 61.0180 simple ratio of moles 4 3…

Q: What mass of compound is present in 6.10 mol of each of the following compounds? Mass =  g…

A: Given Number of moles = 6.10 Molecular Mass of Ca3(PO4)2 = 310.18 gram/mol Molecular mass of Na2HPO4…

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: 4. What are the empirical and molecular formulas of a compound that is 40.27% potassium, 26.78%…

A:

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A: First calculate percentage ratio  of mole then form formula

Q: Benzoic acid is a crystalline powder used as a food preservative. It contains 68.8 % C, 5.00% H, and…

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Q: and 36.32% O by mass. What is its empirical formula? Insert subscripts as needed.   empirical…

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Q: What is the empirical formula of a compound with the following mass percentages of carbon, hydrogen…

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Q: Be sure to answer all parts. For many years chloroform (CHCI3) was used as an inhalation anesthetic…

A: Here we are required to calculate the percent composition by mass of compound chloroform CHCl3

Q: An unknown compound contains only C, H, and O. Combustion of 6.10 g of this compound produced 14.4 g…

A: Calculation of no. of mol of CO2: n=given massMolar mass=14.4 g44.01 g/mol=0.3272 mol 1 mol of CO2…

Q: Benzoic acid is a crystalline powder used as a food preservative. It contains 68.8% C, 5.00 % H, and…

A: We have to predict the empirical formula.

Q: II. Empirical Formula 1. A compound contains 40.92 % C, 4.58% H, and 54.50% O by mass. What is the…

A: Determination of empirical formula The percentage composition of elements present in given compound…

Q: 3. A 29.8g sample of a compound is found to contain 10.5g C and 16.7 g fluorine , the rest is…

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Q: What is the empirical formula for an unknown organic compound, if the compound contains 75% carbon…

A:

Q: A compound is 54.53% C,54.53% C, 9.15% H,9.15% H, and 36.32% O36.32% O by mass. What is its…

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Q: mpirical formula?

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Q: Combustion analysis of a compound yields: C 78.52%, H 8.39%, N 8.33%, and O 4.76%. Determine the…

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Q: A 0.4842-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in…

A: mass of sample = 0.4842 gmass of CO2 = 0.8635 gmass of H2O = 0.3533 gmolar mass of CO2 = 44.01…

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: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula C,H2n++…

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Q: A compound with the empirical formula CH2O has a molar mass of approximately 90 g/mol. What is its…

A: The empirical formula of a compound tells about the simplest whole-number ratio of the elements in…

Q: molecular formula

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Q: An unknown compound contains only C , H , and O . Combustion of 6.90 g of this compound produced…

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Q: Complete the percent composition for the atoms in Na₂O. All answers are numbers. Use no units. Atom…

A: The compound given is Na2O Element molar mass of sodium = 23.0 g/mol  Element molar mass of oxygen=…

Q: The amino acid glycine has the chemical formula C2H5NO2. What is the percent composition of nitrogen…

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Q: What mass of oxygen difluoride OF2, contains the same number of fluorine atoms as 5.20 g of…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: A compound has an empirical formula of HgCl. If the molecular mass of the compound is 472.2 g/mol,…

A: Here we are required to find the molecular formula.

Q: The mass of 0.22 mol of a molecule is 35.16 g. Identify the molecule.

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Q: how to determine moleculure/ empirical formula from this  The elemental analysis of a compound…

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

Q: 4. Sorbitol, used as a sweetener is some "sugar free" foods, has a molecular mass of 182 g/mole and…

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Q: 1.) How many moles of Fe2O3 are in 185 g of the compound? number of moles:            mol  2.)…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A: Number of moles of C, H and O can be calculated by the equation given below:

Q: A compound is 7.7% (by mass) hydrogen and 92.7 % carbon. It has a molecular weight of 52 g/mole.…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

Q: A mineral sample is obtained from a region of the country that has high arsenic contamination. An…

A:

Q: A compound that contains onlý carbon, hydrogen, and oxygen is 68.5% C and 8.63% H by mass. What is…

A: We have given that   % of C = 68.5 %  % of H = 8.63 % % of O = 100 - 68.5 -8.63 = 22.87 %

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.