The CSI crime lab found the empirical formula of a compound to be C2H3O. The molar mass of the compound is 129.15 g/mol. What is the molecular formula?   Question 10 options:   C2H3O   C4H6O2   C6H9O3   C3H3O   none of these

Q: In a sample of CaCl2 • 2H2O(s), the mass of water is ___ the mass of calcium.   Question 5…

A: From the formula the information's we are getting,If 1 mole of the CaCl2 • 2H2O is present,Moles of…

Q: General Chemistry 4th Edition McQuarrie Rock Gallogly University Science Books presented by…

A: The compound butylated hydroxytoluene (BHT) contains carbon(C), Oxygen(O) and hydrogen(H).  Given,…

Q: Sample When 3.596 grams of a hydrocarbon, C,Hy, were burned in a combustion analysis apparatus,…

A: CxHy + O2(excess) -----> x CO2 + y/2 H2O Where : x = number of carbon and y = number of Hydrogen…

Q: Which of the following is the molar mass of nitroglycerin, C3H5(NO3)3? 227 g/mol 179 g/mol 199 g/mol…

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Q: What is the value of n when the empirical formula is C3H5 and the molecular mass is 205.4 g/mol? O…

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Q: The molar mass of a compound is 92g/mol. Analysis of a sample of the compound indicates that it…

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

Q: Aniline, a starting material for urethane plastic foams, consists of C, H, and N. Combustion of such…

A: Given that: mass of aniline = 9.71 g mass of H2O = 6.63 g mass of N2 = 1.46 g To find: the…

Q: 02% hydrogen. What is the empirical formula of this co mical notation is case sensitive ur chemical…

A: Assume total mass is = 100 g Element  mass(g) Mole= Mass/Atomic mass  Simplest mole ratio C…

Q: A chemical compound contains 52.14 % carbon, 13.13 % hydrogen, and 34.73 % oxygen. The molar mass of…

A: For calculation of Molecular formula first of all devide all percentage of different elements by…

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: 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: Question 3 What is the molar mass of the following compound: Ca5(PO3)3

A: In question 3, first of all count the no. of atom present individual then after calculate its molar…

Q: A compound with a percent composition by mass of 24,61 % C. 2.75% H, and 72.64% CI has a molar mass…

A: Information of question

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

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Q: A compound has a molar mass of 44.01 g/mol and an empirical formula of CO2. What is the molecular…

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Q: A compound containing carbon, hydrogen, and oxygen was analyzed. The analysis revealed a composition…

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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 formula weight of the ionic compound, Cu(CIO4)2, is?

A: Given :- chemical formula of an ionic compound = Cu(ClO4)2  To determine :- its formula weight

Q: A chemical reaction occurs that involves combining 1 atom of zinc with 2 atoms hydrogen and 2 atoms…

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Q: Question 7 D A 4 g sample of H2 (g) is combined with a 28 g sample of CO (g), and the following…

A: From this reaction we see that 2 mol hydrogen react with 1mol CO formed 1 mol methanol Moleculer…

Q: Sue adds 1.78 grams of sugar, C12H22O11 to her coffee every morning before work. How many moles are…

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: QUESTION 12 The highly toxic "antifreeze" has the formula C2H602. In your chemistry assignment you…

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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: An experiment was conducted to determine the empirical formula of a nitrogen oxide. The mole ratio…

A: The question is based on experimental concepts of chemistry. we need to identify the correct…

Q: QUESTION 18 Analysis of a hydrocarbon shows it to be 94.1% oxygen and 5.9% hydrogen. Determine the…

A: As per the guidelines we are supposed to answer the first question so solve remaining questions…

Q: Decomposition analysis of an unknown compound indicated that the compound contains 53.9 % carbon,…

A: The unknown compound contains 53.9% carbon, 10.1 % hydrogen, and oxygen. molecular molar mass is 89…

Q: A molecule contains 16.623% hydrogen, 2.078% oxygen, and no other element except carbon. What is the…

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Q: 27.22 g of X combines with 84.10 g of Y to form XY. If the molar mass of X is 33.42 g mol–1, what is…

A: The mass of X is 27.22 g.The mass of Y is 84.10 g.The molar mass of X is 33.42 g.mol-1.The formula…

Q: If the empirical formula of a compound is P₂O3, what could be a possible molar mass of the molecular…

A: Empirical formula= the empirical formula of a chemical compound is the simplest whole number ratio…

Q: QUESTION 28 Determine the empirical formula for a compound that is 70.79% carbon, 8.91% hydrogen,…

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Q: In a sample of CaCl2 • 2H2O(s), the mass of water is ___ the mass of calcium.   Question 5…

A: Step 1:To determine whether the mass of water in a sample of calcium chloride dihydrate…

Q: Psoralen, a compound found in giant hogweed, contains only C, H, and O. Combustion of 1.000 g of…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: A compound with the empirical formula SH3 has a molar mass of about 175 g/mol What is the correct…

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Q: empirical formula of C4H10

A: Empirical formula of any compound is the formula which contains the atoms of each element in the…

Q: The compound known as butylated hydroxytoluene, abbreviated as BHT, contains carbon, hydrogen, and…

A: 1st Calculate the mass of C, H and O2nd Calculate the moles of C, H and O3rd Calculate the empirical…

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: Question 1 1 pts Calculate the number of moles of atoms present in 5.28 g of elemental zinc.…

A: Answer 1:We know that, Number of Moles=Molar MassMass​Given that:Mass of the zinc = 5.28 gWe know…

Q: Which molecular formula has an exact molecular mass of 86.1096 amu: C6H14, C4H10N2, or C4H6O2?

A: Since the molar mass = sum of Atomic masses of all the atoms present in the molecule And since the…

Q: How many molecules are present in 1/4 liter of water?   Question 32 options:   8.35 x 1024…

A: We have to calculate the number of molecules in 1/4 Liters of water.

Q: The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2% O. The molar mass of…

A: Given,The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2% O.The molar mass…

Q: A Question 5 Retake question You determine the empirical formula of a compound to be CH3. In a…

A: Empirical formula = XY  Molecular formula = (XY)n  n= Molecular mass/Empirical mass  A balanced…

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.