A compound that contains only carbon, hydrogen, and oxygen is 40.54% C and 5.44% H by mass. What is the empirical formula of this substance?

Q: Ethylene glycol (MW=62.0 g/mol) is used as automobile antifreeze. Combustion analysis of a 23.46 mg…

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Q: One way to collect zinc is to react solid zinc (II) oxide with carbon, which produces solid zinc and…

A: The number of moles of any substance can be calculated by dividing its mass and molar mass, the…

Q: Macmillan earning A newly discovered metalloprotein, which contains two atoms of Cd per molecule of…

A: To solve this problem we have to find the molar mass of protein having two atoms as Cd .

Q: Consider the balanced chemical reaction below. How many grams of carbon monoxide are required to…

A: Given data,Mass of Fe2O3=6.4gMolar mass of Fe2O3=159.69g/molwe know, Moles of a substance are given…

Q: 5. The energy in our bodies mainly comes from carbohydrates, which are broken down into simple…

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Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

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Q: Combustion of propane, C3H8, serves as an energy source in many rural Indiana homes. The unbalanced…

A: The reaction given is, => C3H8 + O2 → CO2 + H2O Given: Moles of propane combusted = 1.00 mol.

Q: Phogene (COCl2) can be manufactured by mixing carbon monoxide with chlorine gas. CO + Cl2 → COCl2…

A: CO + Cl2 .....> COCl2  Given that :  Moles of carbon monoxide(CO) = 7.25 moles

Q: please answer #11 on attachment document.  The empirical formula of ethylene glycol is:

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Q: Use the balanced equation for the combustion of ethane to complete the table.    2C2H6(g)  +…

A: Since the balanced reaction given is  2C2H6(g)  +  7O2(g) → 4CO2(g)  +  6H2O(g) Hence we can say 2…

Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

A: Balanced equation is equation in which number of atoms are equal in both reactant and product side.

Q: Mass of sample (g ) 1.94g Mass of empty crucible (g)  84.248g Crucible and sample after heating…

A: Mass of sample = 1.94 g Mass of empty crucible (g) = 84.248 g Crucible and sample after heating (g)…

Q: Lv2 | Online teaching and learning resource from Cengage Learning GAccording to the following…

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Q: 4. Which of the following represents the least number of molecules? Show all work. a) 20.0 g of H2O…

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Q: The AP Biology teacher is measuring out 647.0 g of dextrose (C6H12O6) for a lab. How many moles of…

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Q: Liquid hexane CH3CH24CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and…

A: Answer: percentage yield of carbon dioxide is 60.8%

Q: Calculate the grams of H2 needed to make 150.0 g of NH3. Use the balanced equation below. All…

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Q: 1. Why is it important that a chemical equation be balanced? 2. What is a mole ratio? How is it used…

A: 1) It is important to balance the chemical equation to satisfy the law of conservation of…

Q: Given the unbalanced chemical equation, CH3OH(l)  +  O2(g) →  CO2(g)  +  H2O(g),  what is the mole…

A: The balanced chemical equation of a reaction represents the number of moles of each species that…

Q: One of the key ingredients in certain cosmetics is Pb2Cl2CO3 and is created as shown in the reaction…

A: Given mass of CO2= 4.87 g  Given mass of H2O = 2.7 g  Given mass of NaCl = 0.46 g  Given mass of PbO…

Q: If 4.7 kg of CO₂ are produced during a combustion reaction, how many molecules of CO₂ would be…

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Q: Step 2a: Use dimensional analysis to determine the theoretical yield of the product. Calculate the…

A: It is based on the concept of stoichiometry and limiting reagent.  Here we are required to find the…

Q: Consider the combustion of methane.   CH4(g)+2O2(g)→CO2(g)+2H2O(g)  Suppose 2.5 mol  of methane are…

A: Given:Moles of CH4 = 2.5 mol.Moles of O2 = 3.5 mol.

Q: Consider the following balanced chemical equation then determine how much C6H6 (in grams) is…

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Q: What would you multiply "moles of butane (CH10)" by to convert to the units "moles of water" ?

A: The number of moles is given by the mass of the substance upon its molar mass.

Q: If 4.1 kg of CO₂ are produced during a combustion reaction, how many molecules of CO₂ would be…

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Q: consider the following balanced equation. N2O4(l) + 2 N2H4(l)  →  3 N2(g) + 4 H2O(g) Determine the…

A: Given, N2O4(l) + 2 N2H4(l)  →  3 N2(g) + 4 H2O(g) Given, mass of N2O4 react = 60.0 g mass of N2H4…

Q: For the combustion of butanol (C4H10O), what mass (in g) of butanol must we react to produce 60.7 g…

A: Step 1:- First, a balanced chemical equation for the combustion of butanol is written. Step 2: Then…

Q: Ethylene reacts with oxygen gas. When the reaction is balanced, what is the coefficient in front of…

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Q: - Answer the following questions based on the combustion of hexane: a. Write and balance the…

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Q: 50. Calculate the number of moles in a 10.0 g sample of NaOH. 23 23 a. 0.250 mole b. 1.66 x 10 mole…

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Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: 5. The energy in our bodies mainly comes from carbohydrates, which are broken down into simple…

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Q: 2H + O2e → 2H;O@ For the combination reaction above between oxygen gas and hydrogen gas to produce…

A: 1mole oxygen required to form 2 mole of water

Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

A: The balanced molecular eqn is given by - 4NH3(g) + 5O2(g)---> 4NO (g) + 6H2O (g) When the…

Q: 10. Determine the mass percent composition of each element in calcium silicate CaSiO3. 11. A…

A: #10: CaSiO3 has 1 Ca, 1 Si, and 3 O atoms.  Atomic mass of Ca = 40.078 g/mol Atomic mass of Si =…

Q: If 6.5 kg of CO₂ are produced during a combustion reaction, how many molecules of CO₂ would be…

A: Given, Amount of CO2 =6.5 kg =6500 gwe are asked to calculate the number of molecules of CO2 in the…

Q: Part B What to do: Read and analyze the given chemical equation of the reaction. The combustion of…

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Q: For the combustion of butanol (C4H10O), what mass (in g) of butanol must we react to produce 60.7 g…

A: The combustion of butanol (C4H10O) in the presence of oxygen (O2) produces water (H2O) and carbon…

Q: Consider the combustion reaction for octane (CgHi8), which is a primary component of gasoline. 2…

A: The number of moles of octane (n) in 27.6 g of octane is calculated using equation (1) in which m is…

Q: Liquid hexane  CH3CH24CH3  reacts with gaseous oxygen gas  O2  to produce gaseous carbon dioxide…

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Q: Glucose (CH1206) is combusted under an excess of pure oxygen. This reaction produces 20.0g of…

A: The mass of carbon dioxide produced is 20.0 g.a. To write the balance of the combustion reaction.b.…

Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

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Q: 9.00g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given data 9.00g of a certain Compound X molecular molar mass of 60.g/mol   Co2=13.20g water=5.40g…

Q: E-85 is an alternative fuel for automobiles and light trucks that consists of 85.0% (by volume)…

A: Given balanced equation:

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.