If a sample of CH3CO,CH3 is found to contain 9.26 mol of C atoms how many grams of O atoms are present?

Q: Fe(s) + O2(g)  Fe2O3(s) If 1.05 g of iron is heated and placed in a bottle containing 0.0219 mol of…

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Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A: To obtain the atomic ratio, each mole of C, H, O is divided by the smallest value. Since 0.0167 mol…

Q: How many carbon atoms are in 3.47 g of aspirin (C,H₂O)? C atoms

A: Given -> Weight of aspirin= 3.47 gm  Molecular formula of aspirin= C9H8O4

Q: Fe(s) + O2(g)  Fe2O3(s) If 1.05 g of iron is heated and placed in a bottle containing 0.0219 mol of…

A: To calculate the mass of iron (III) oxide produced we would proceed as :  First write the balanced…

Q: How many moles of NO3- are in 13.0 g of Ca(NO3)2?

A: 1 moles of Ca(NO3)2 contains 2 moles of Nitrate ions. Nitrate ions (NO3-) present in the sample =…

Q: I have the compound CO2 , I know there is 48g O2 in the compound, how many moles of CO2 is there.

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Q: A student recorded that 61.64 g of carbon dioxide and 28.39 g of water were produced after the…

A: Here we are required to find the molecular formula of the compound.

Q: If a sample of CH3O2C(CH2)2CO2CH3 is found to contain 1.84 · 10-4 mol of O atoms how many C atoms…

A: Number of moles of the given compound with 1.84×10-4 mol O atoms is calculated as follows: 1 mol…

Q: How many moles of C4H8O2are in 6.00 g of butyric acid?

A: Given  Mass of C4H8O2 = 6 gram  Number of mole = ?

Q: How many carbon atoms are there in 16.3 mol of CO2

A: Given : Molecule is CO2  And moles of CO2 = 16.3 Since 1 molecule of CO2 has  1) 1 atom of C  2) 2…

Q: If you have 3.2 moles of Al2 O3 how many moles of Al are in your sample?

A: one mole of any species contains its molar mass .

Q: How many C atoms are in 1.3 x 10² mol of sucrose? Be sure your answer has the correct number of…

A: 1 mole = 6.022 x 1023 entities1 mole of compound AB contain 1 mole A and 1 mole of B 1 mole of…

Q: A sample of propanol, C3H3O, contains 0.383 mol of the compound. What is the mass of the sample, in…

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Q: How many hydrogen atoms are present in 75.0 of g H2O?

A: Mass of water, H2O = 18.016 g/mol Mass of water = 75 g Moles of water, H2O = Mass Molar mass=75…

Q: How many grams of nitrogen are in a .10g sample C8H10N4O2?

A: Step : 1            The mass of caffeine ( C8H10N4O2 ) is not clear, so we consider as two cases  :…

Q: A: What is the correct chemical formula when Co4+ combines with S2- ?  B:  How many ATOMS of OXYGEN…

A: A: What is the correct chemical formula when Co4+ combines with S2-?

Q: How many moles of tetracycline (C₂₂H₂₄N₂O₈) are in 92.1 grams?

A: Before going to find out moles of tetracycline, We first find out molecular weight of C22H24N2O8 ,…

Q: n unknown compound contains only C, H, and O. Combustion of 4.30g of this compound produced 10.5 g…

A: Empirical formula of a chemical compound is defined  as simplest positive  integer ratio of atoms…

Q: A molecule is found to be 38.7% carbon, 9.7% hydrogen, and 51.6% oxygen.  Its molar mass is 124…

A: In 100 g of the sample, Mass of carbon= 38.7 g Mass of hydrogen = 9.7 g Mass of oxygen = 51.6 g…

Q: Combustion of an unknown compound containing only carbon and hydrogen produces 54.9 g of CO₂ and…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: Consider a sample containing 0.750 mol0.750 mol of a substance. How many atoms are in the sample if…

A: The number 6.022 × 1023 indicates the number of atoms or molecules in a mole of any substance is…

Q: An unknown compound is 92.26% carbon and 7.74% hydrogen. The unknown compound has a Molar Mass of…

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

Q: If we started with 5,280g KClO3   what would be the total mass of the products (g KCl + g O2)?

A: Given, weight (KClO3) =5,280g We have to find the weight of product weight (KCl)= ? weight (O2) =?

Q: A compound contains only carbon, hydrogen, and oxygen. Analysis of a sample showed that it contained…

A: Given Carbon composition = 54.53 % hydrogen composition = 9.15 % Molecular Weight = 88 g/mole

Q: How many molecules of C7H10O2N2 are there in 2.648⨯10-2 moles of that substance?

A: To determine the number of molecules of C7H10O2N2 in 2.648⨯10-2 moles, we can use Avogadro's number,…

Q: Q2. Combustion of 11.5 g sample of a compound containing C, H, and O yields 13.5 g of H₂C and 22 g…

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Q: A molecular compound contains 92.3% C and 7.7% H. What is the molecular formula if it has a…

A: GIVEN: Molecular compound contains 92.3% Carbon and 7.7% hydrogen.Molecular weight of the compound…

Q: If there are 3.70 moles of H,3.70 moles of H, how many moles of each of the compounds are present?…

A: Given :-  number of moles of H = 3.70 mol  To be calculated :-  number of moles of H2SO4  number of…

Q: How many moles (of molecules or formula units) are in each sample? 42.59 g CF2Cl2 Express your…

A: One mole contains Avagadro number of atoms. That is, 6.022x1023 atoms. Mass of one mole is called…

Q: How many moles of atoms are contained in 15.5 g of Br2 ?

A:

Q: if CH2O has a molar mass of 282.33 g/mol, what is its molecular formula?

A: We have Empirical formula as CH2O => the ratio of atoms will be  C : H : O = 1 : 2 : 1  Assuming…

Q: 2. A gas sample is found to contain 39.10% Carbon, 7.67% Hydrogen, 26.11% Oxygen, 16.82% P, and…

A: Given amount of elements are as follows C = 38.10% H = 7.67% O = 26.11% P = 16.82% F = 10.30% Atomic…

Q: A compound contains C, H and O. If it contains 52.2% C and 34.7% O by mass, what is its empirical…

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Q: mercury occurs as a sulfide one called cinnabar, Hgs. How many moles of HgS are contained in a…

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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 compound containing only phosphorus and hydrogen was fully combusted and yielded 17.9 g of P4O10…

A: Given statement is : A compound containing only phosphorus and hydrogen was fully combusted and…

Q: Complete combustion of a 1.448 g sample of a hydrocarbon (only carbon and hydrogen present),…

A: Given -> Weight of hydrocarbon = 1.448 gm Weight of CO2 = 3.128 gm Weight of H2O = 1.121 gm

Q: What is the mass in grams of Na1 (22.99 g/mol) in 25.0 g of Na2SO4 (142.0 g/mol)?

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Q: How many moles of carbon in 70.43 grams of C6X12Y4? (Assume the molar mass of C6X12Y4 is 295.8)

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: the molar mass of a strange new compound is 95.2 g/mol, how many moles of the compound are in 157.00…

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Q: A 10 g smaple of which substance contains the greatest number of hydrogen atoms? a)10 g of PH3…

A: d)10 g of H2

Q: How many moles of O2 molecules are present in a 2.00 mole sample of SO2Cl2 ?

A: A compound is a pure substance. And according to the Law of Constant Proportions, the elements…

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.