A certain compound contains 40.0% carbon, 6.71% hydrogen, and 53.3% oxygen by mass. If a 0.320 mole sample weighs 28.8 g, what is the molecular formula of this compound?

Q: Determine the exact number of H atoms in the empirical formula of the compound composed of…

A: Calculate the emprical formulaC⇒64.817768 %H⇒13.597446%O⇒21.585325%C=64.81g  x112.0xmolesg=5.39…

Q: How many moles of KI are in 1.36×1024 formula units?

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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: (Must show work for all questions and round the answers to the correct number of significant figures…

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

Q: How many moles of KI are in 1.22×10241.22×1024 formula units?

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Q: How many grams of ethanol C2H6O are in a 3.0 mole sample?

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Q: How many K atoms are present in 3.48 g of KOH formula units? Express your answer in scientific…

A: In order to find the number of potassium atoms present we first write down the given data: Mass of…

Q: how many moles are in 1x10-6 g of C7H14O2?

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Q: Calculate the empirical and molecular formulas of a compound from percentage composition and…

A: Let us solved the problem by taking an example accordingly. Let us suppose a sample has 45% of…

Q: How many grams of LiOH are in 6.21x1024 formula units of LiOH?

A: Given that, Number of formula units, i.e, number of particles of LiOH = 6.21 x 1024 particles We…

Q: compound has the mass percent data given below . Determine its empirical formula. 32.43 % carbon by…

A: Empirical formula of a chemical compound is the simplest positive integer ratio of atoms present in…

Q: If a hydrocarbon is 10% hydrogen by mass, what is its empirical formula?

A: Hydrocarbon is a compound made of the elements carbon and hydrogen. Empirical formula is the…

Q: Separation of a 3:1 Mixture Table view List view Recovered Sand Recovered Water Mass of Empty…

A: As per given experiment:-  1)Mass of seperated sand = 1.145 g. 2) Mass of seperated water = 2.455 g.…

Q: 5.00g of an organic compound was found to contain 2.73%g of carbon , 0.46g of hydrogen and 1.81 g of…

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Q: Which of the following can be considered an empirical formula? Explain how you know. CH4 C2H8 C2H6…

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Q: If a hydrocarbon is 25% hydrogen by mass, what is its empirical formula?

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Q: Determine the empirical formula of a compound that is 49.5% 5.2 % H, 16,5% O and 28.9% N. Then…

A: Compound that is 49.5% C, 5.2 % H, 16,5% O and 28.9% N having actual molar mass of  194 g / mol.…

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: How many grams of LiOH are in 6.21x1024 formula units of LiOH?

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Q: Molar Masses A = 17.813- mole D = 41.486- mole E = 33.011- mole Y = 19.280 X = 255.691 mole Z =…

A: Given that -  Molar masses of elements are -  A = 17.813 g/mole D = 41.486 g/mole E = 33.011 g/mole…

Q: A compound is determined to be 51.8% chlorine, 1.47% hydrogen, and 46.7% oxygen by weight. The…

A: Welcome to bartleby ! Introduction : We have to calculate the molecular formula .

Q: A compound is found to contain 7.808 % carbon and 92.19 % chlorine by mass. What is the empirical…

A: Empirical formula is defined as simplest or most reduced whole number ratio of atoms present in a…

Q: How many grams of ethanol (CH3CH2OH) are there in a 0.2814 mol sample?

A: It is given that there are 0.2814 moles of ethanol (CH3CH2OH).

Q: Calculate the number of moles of the indicated substance for each of the following samples.…

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Q: A compound is found to contain 26.73 % phosphorus, 12.09 % nitrogen, and 61.18 % chlorine by mass.…

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Q: A compound is analyzed and determined to have the following percent-by-mass composition: 60.95%…

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Q: An unknown compound whose molar mass is 283.88 g/mol. Was analyzed and found to contain 43.64 %…

A: The molecular formula represents the exact number of atoms present in the molecule

Q: Which of the following sets of empirical formula, the molar mass of molecular formula, and the…

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Q: A mystery white powder is made up of 80.5% C, 10.1% H, and 9.4% N. What is its empirical formula?

A: The question involved  elemental analysis. we have been given percentage of elements present in the…

Q: An unknown substance is empirically determined to be 12% carbon by weight 75% hydrogen, and the rest…

A: In molecular weight atoms should be considered as present in molar mass.

Q: An unknown compound has a molar mass of 236.7 g/mol. Given a percent composition by mass of 10.13%…

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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.