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 compound has a percent composition of 24.74% potassium (molar mass = 39.10 g/mol), 34.76%…

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Q: empirical formula

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Q: 3.A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many…

A: The formula of the given compound is K2Cr2O7. One mole of potassium dichromate contains the number…

Q: Complete the table below for calculating the molar mass of the ionic compound nickel(II) chloride.…

A: Answer:Molar mass of an ionic compound is equal to the sum of all the ions present in the molecule.

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: A sample of sulfolane, C.H3O,S, contains 5.00 x 1024 atoms. How many moles of sulfolane are in the…

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Q: 1) a chemical mole A-is a kind of material B-is a large molecule C-contains an undetermined number…

A: Mole concept: Avogadro's number = 6.022 × 1023 1 mol of any substance contain 6.022 × 1023 molecules…

Q: An unknown compound contains only C , H , and O . Combustion of 9.00 g of this compound produced…

A: We have to calculate the empirical formula of the unknown compound

Q: A model of the butanal molecule is shown in the window below. ball & stick + labels ited a. How many…

A: From the model, Butanal=> CH3>CH2CH2CHOMolecular formula of butanal is C4H8O. Mole is the SI…

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: Without using a calculator, arrange the samples in order of increasing numbers of carbon atoms.…

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Q: Determine the empirical formula of a compound having the following elemental analysis: 52.2% C;…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: a. Two compounds have the same composition: 92.25% C and 7.75% H. Obtain the empirical formula…

A: Empirical formula is the simplest formula of a compound where atoms of participating elements are…

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: 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: Which sample has the greatest amount of atomic nitrogen? 33.0 g of N2O 3.01 × 1023 molecules of N2…

A: The objective of the question is to determine which of the given samples contains the greatest…

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: 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 is the empirical formula of a compound with the following composition: 24.78% C, 1.05% H, and…

A: Empirical formula can be calculated by these steps dividing mass percent with molar mass to get…

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

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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…

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

A: The mineral sample has the elemental composition: Element atomic weight (g/mol) Percent…

Q: Analysis by mass of a certain compound shows that it contains 14 percent hydrogen and 86 percent…

A: The objective of the question is to determine the most informative statement that can be made about…

Q: A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields…

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Q: The chief component of eucalyptus oil is X, which contains 77.87% C, 11.76% H and the reminder O.…

A: Assume you begin with 100 grams of unknown compound X.

Q: A compound is 25.0% carbon, 8.4% hydrogen and 66.6% sulfur by mass. Put symbols in order of CHS.…

A: Given Data:% of Carbon = 25.0 %% of Hydrogen =8.4 %% of Sulfur = 66.6 %To determine:Empirical…

Q: 1. A compound is found to contain 63.52 % iron and 36.48% sulfur. Find its empirical formula. 2. A…

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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.