21. A compound contains 70.6% carbon, 5.9% H, and 23.5% O by mass. The molecular weight of this compound is 136 amu. What is the molecular formula? a) C3H8O2 b) C3H40 c) C4H40 d) C9H12O e) C5H6O2

Q: A hydrocarbon contains 92.3% C and 7.7% H and has a molar mass of 78.1 g/mol. What is its molecular…

A:

Q: fragrance manufacturers to provide a rich and elegant musky essence to many perfumes. Cosmone has…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: Problem 31

A: Given that the mass of CO2 and H2O is 2.90 g , 0.8975 g respectively.The mass of Carbon and Hydrogen…

Q: Find the molecular formula of the following compounds.

A: A molecular formula is a short term notation of a molecule. In a molecular formula the respective…

Q: 2Fe2O3 + 3C → 3CO2 + 4Fe   C. How many grams of Fe are produced from 1.88g of C?

A: First, we need to convert grams of Carbon to moles of carbon, and using stoichiometric calculation…

Q: A given compound contains 23.8% S, 23.7% O, and 52.5% Cl by mass. Which compound below is consistent…

A: The molar amounts of given atoms in 100 grams sample is determined by dividing each atom by its…

Q: 41. Calculate the number of moles of carbon atoms present in each of the following samples. a. 1.271…

A:

Q: Calculate the number of atoms of glucose in 2.116 x 10-3 grams of glucose, C6H12O6. Hint: molar mass…

A: We have to use basic mole conversions to find this 1mole = 6.022 x 1023 atoms Molar mass of glucose…

Q: What is the molar mass of Al2(Cr2O7)3?    809.8554 g/mol B. 269.9518 g/mol C. 401.9448 g/mol…

A:

Q: Ethanol is produced industrially by the reaction of ethylene with water in the presence of an acid…

A: Given Moles of ethylene ( C2H4 ) = 7.24 mol C2H4(g)   +    H2O(l)       ⇌     C2H6O(l) By…

Q: Q1. a) If 2.032 x1023 molecules of benzene (C,Hs) reacts with excess chlorine (Cl2), how many grams…

A: We will use stoichiometry of the reaction to get the answer.

Q: 3.5.3 Determine the masses of CO, and H,O produced by the combustion of 0.986 g of a compound with…

A: Correct answer is (a) 1.76 g CO2 , 0.719 g H2O One molecule of C3H6O2 has 3 carbon atoms. So, moles…

Q: 31. The empirical formula of C&H1206 is b. CH20 a. CHO c. C3H20 d. CHO2 32. What is the molecular…

A: " Since you have posted a question with multiple sub-parts , we will solve first three sub-parts for…

Q: How many moles of Hydrogen do you have you have 5.68 x 10 ^ 24 Hydrogen atoms? a)  .9432 x 10 ^-1…

A: 1 mole hydrogen atoms contains 6.023 x 1023 atoms of hydrogen.

Q: A sample of ethanol (C2H6O) contain 3.024 g of hydrogen. How many moles of carbon in the sample?…

A:

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

A:

Q: How many molecules are in 30.2 g of butane (C4H10)? O a. 3.13 x 10 e23 molecules O b. 31.3 x 10 e23…

A: Given: Mass of butane= 30.2g To find: The number of molecules

Q: Carbon dioxide gas, CO2(g)CO2(g) , produced in the combustion of a sample of ethane is absorbed in…

A: The balanced reaction of combustion of C2H6 is: C2H6(g)+72O2(g)→2CO2(g)+3H2O(l)…

Q: Determine the number of C atoms in 0.01 g of Caffeine C8H10N4O2

A:

Q: 2 CuSO4 + 4 KCN = C2N2 + 2K2SO4 +2 CuCN Determine how many grams of cyanogen are produced from 3.5…

A: Given  Reaction  2CuSO4  + 4KCN   →  C2N2 + 2K2SO4  + 2CuCN Number of mole of CuSO4  = 3.5 mole…

Q: Determine the molecular formula of a compound that is 42.1% C, 6.49 %H, and 51.4% O. The molecular…

A: Empirical formula: It is the formula in which the elements are present in the simplest ratio in the…

Q: A compound has an empirical formula of C,H,O. If the experimental molecular weight is found to be…

A:

Q: Determine the formula for a compound with 25.24 % S, 74.76% F and a molecular weight of 254.112 g/…

A:

Q: What is the simple formula for a compound containing 32.1% Ni, 15.3% N and 52.5% O?

A:

Q: 1. Given the following reaction: NazS203 + AGB → NaBr + Na3[Ag(S2O3)2] a. How many moles of Na2S203…

A: according to mole concept we easily finds the moles of reactent and products

Q: Determine the molecular formula of a compound that is 49.48% carbon, 5.19% hydrogen, 28.85%…

A: Given, a compound that is 49.48% carbon, 5.19% hydrogen,28.85% nitrogen, and 16.48% oxygen.The…

Q: How many moles of carbon dioxide could be produced if 10 moles of octane, C gH 18, are combined with…

A: In this question, we have to calculate the moles of carbon dioxide could be produced:

Q: . A compound with an empirical formula of C20H4 and a molar mass of 88 grams per mole. What is the…

A: 3) Given: Empirical formula = C2OH4  And molar mass = 88 g/mol.

Q: Fullerenes are molecules composed of only carbon atoms. One fullerene is C60 a carbon molecule…

A: The number of moles of a substance is defined as the mass of the substance upon its molar mass.

Q: Ethanol has a molecular formula of CH3CH2OH. a.    What is the molar mass of ethanol? b.    What is…

A:

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: 1. Acetone is a well-known industrial solvent with a molecular formula of: C3H60. Calculate for its…

A: Given, the molecular formula of acetone = C3H6O We have to find the formula weight of acetone and…

Q: compound with empirical formula C2H5O was found in a separate experiment to have a molar mass of…

A:

Q: Calculate the number of moles and molecules of 35.00 grams glucose (C6H12O6). How many atoms of C…

A:

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: Acetone is a well-known industrial solvent with a molecular formula of: C3H60. Calculate for its…

A:

Q: 22. The combustion of hexane (C,H14), a component of gasoline, is represented by the balanced…

A: A combustion reaction of hexane. Balanced chemical Reaction :-  2C6H12 (l) + 19O2 (g) --> 12CO2…

Q: 4 moles of C 12 moles of He and 24 moles of H2 will have the same weight Since moles of C is the…

A: 4 mole carbon means - 48g of carbon 12 Mole of Helium means - 48g of Helium 24 moles of H2- 48g of…

Q: How many moles of oxygen are there in one mole of CGH1206? O 6.02 x 1023 moles 8.00 moles 6.00 moles…

A: one of of C6H12O6 has 6.00 moles of Oxygen so option - c correct

Q: If 20% by weight of nitrogen is present in a compound, the molecular weight of the compound may be…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: 20 moles of Glucose(C6H1206) weigh equal to O 360 O 1800 O 6.022*103 O 3600

A: First of all, we will calculate the molar mass of glucose and then using the mole concept, we will…

Q: The chemical formula of the antiviral drug against COVID-19 molnupiravir is C13H19N3O7. How many…

A: Given that : The mass of molnupiravir = 600.0 mg Relative atomic masses: H = 1.008; C = 12.011 N =…

Q: 2Fe2O3 + 3C → 3CO2 + 4Fe D. How many grams of CO2 are produced from 11.42g Fe2O3?

A: Given: The mass of Fe2O3 is 11.42 g. Introduction: Write the reaction. 2Fe2O3 + 3C → 3CO2 + 4Fe…

Q: 2H2O(g) ----> 2H2 (g) + O2 (g) how many grams of O2 can be produced from 60.3 g H2O(g)

A: The given reaction is: Here, the water vapor (H2O) and oxygen (O2) are in 2:1 stoichiometric ratio…

Q: How many molecules are there in 0.1 mole of water? a. 3.0 ×1023 b. 6.0 × 1022 c. 3.0 × 1021 d. 6.0…

A: Given, the number of moles of water =0.1 moleswe are asked to calculate the number of molecules of…

Q: b) C5H12= (c) Sc2(SO4)3 (d) CH3COCH3 (acetone)

A:

Q: How many moles of carbon are in 2 moles of glucose (C6 H12 O6) A. 2 B. 6 C. 12 D. 24 E. 1.2 × 10^24

A: Glucose is C6H12O6 We have to find the number of moles of Carbon in 2 moles of glucose.

Q: A 30.21 g sample of a compound that contains only carbon and hydrogen was combusted and yielded…

A:

Q: A compound with a composition of 85.62% C and 14.38% H, and a molecular weight of 56.06 g/mol

A: Composition of carbon and hydrogen are given. Considering total mass of the given compound, the…

Types of Polymers on the basis of Method of Preparation