On a weight basis, a compound is 39.1% car- bon, 52.2% oxygen and the rest is hydrogen. What is the empirical formula?

Q: A compound with a molar mass of 544.0 g/mol is made up of 26.5 grams Carbon, 2.94 grams Hydrogen,…

A: From the given masses we calculated moles than simplefied the number to positive integers to obtain…

Q: The molar mass of aniline is 93 g/mol. What is its molecular formula?

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Q: Each molecule of vitamin B12 contains a single atom of cobalt and is 4.35% cobalt by mass. What is…

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Q: Hydroxylamine contains 42.41 % N and 9.15% H by mass, with the remainder being oxygen. Determine its…

A: The empirical formula can be defined as a chemical formula which gives the proportion of all the…

Q: How can the Percentage Composition be obtained from chemical formulas?

A: Percentage composition is given by, % composition = mass of the elementTotal mass of the…

Q: An 0.007587-g sample of an organic compound containing carbon, hydrogen and oxygen produced 0.01452…

A: Empirical formula of the compound is the simplest ratio of number of elements present in it.…

Q: What is the difference between an empirical formula and a molecular formula? Provide an example.

A: There are three types of chemical formulas:-  Empirical formula is the simplest whole number of…

Q: Combustion of a 1.505 g sample of thiophene, a carbon–hydrogen–sulfur compound,yields 3.149 g 0.645…

A: Thiophene is composed of carbon, hydrogen, and sulfur. On combustion, it will give carbon dioxide,…

Q: the mass of 0.014 moles of sodium sulfate, in grams?

A: The relation between number of moles(n), molar mass(M) and mass (m) of a substance can be given by…

Q: A compound is found to contain 31.42 % sulfur, 31.35 % oxygen, and 37.23 % fluorine by mass. What is…

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Q: If an oxide of carbon is 80% oxygen by mass, what is its empirical formula?

A: Empirical formula represent smallest whole number ratio of various elements present in a molecule of…

Q: Cumene is a compound containing only carbon and hydrogen that is used in the production of acetone…

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Q: Calculate the percentage by mass of the indicated element in the following compounds: oxygen in…

A: Molar mass of SO2 is 64.06 g/mol Atomic mass of Oxygen is 16.00 g/mol

Q: A sample that contains only carbon and hydrogen, and is sent for analysis. It is found to contain…

A: Given : Compound contains carbon and hydrogen. And mass percent of carbon = 94.70% Assuming 100 g of…

Q: 34.0 g of aluminum and 39.0 g of chlorine gas, How much would be the excess reactant?

A: The molar mass of aluminium (Al) is 26.98 g/mol. The molar mass of chlorine gas (Cl2) is 70.9 g/mol.

Q: A compound containing only sulfur and arsenic is 30.0% S by mass; the molar mass is 428 g/mol. What…

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

Q: For each of the following compounds, determine the moles of compound present for 887.9 grams of the…

A: We have to calculate the mole of given compound

Q: Cortisone consists of molecules, each of which contains 21 atoms of carbon (plus other atoms). The…

A: The given data: The number of carbon atoms present in cortisone = 21 The mass % of the carbon in…

Q: A sample of histamine having a mass of 385mg is composed of 208mg of carbon, 31mg of hydrogen, and…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: Why is it important to use formulas (such as empirical, molecular, structural) in calculating…

A: Emperical formula(E.F.):- It shows the simplest number and types of atoms constituting the compound.…

Q: If a 25 g sample is composed of 9 g C and 16 g O, what is its empirical formula?

A: Given: mass of C = 9 g mass of O = 16 g molar mass of C = 12.0 g/mol molar mass of O = 16.0 g/mol

Q: A compound of carbon and hydrogen has the composition of 92.25% carbon and 7.75% hydrogen by mass.…

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Q: A compound that contains only carbon, hydrogen, and oxygen is 48.64% C and 8.16%H by mass. What is…

A: Given The percentage composition of carbon (C) is 48.64%. The percentage composition of hydrogen (H)…

Q: A compound contains 2.128g Be, 7.557g S and 15.107g of O. What is the empirical formula? It's molar…

A: In a compound mass of Be ,S and O atom are given 2.128g,7.557g and 15.107g respectively. We know ,…

Q: 4. Potassium permanganate Туре of Atoms Amount of Total each atom amount Mass of each Formula Total…

A: Given :  To find the type of atoms and total molar mass for the following compounds. 1. KMnO4  2.…

Q: Analysis of a compound showed that it contained 20% hydrogen atoms and 80% carbon atoms by mass.…

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Q: Potassium manganate is a dark green , crystalline substance whose composition is 39.6 % К, 27.9% Mn,…

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Q: Compound X is consisting of 38.70% carbon, 51.60% oxygen and the rest is hydrogen. The molar mass of…

A: Given:  Mass ℅ of carbon = 38.70 ℅ Mass ℅ of oxygen = 51.60 ℅

Q: A compound that contains only carbon, hydrogen, and oxygen is 58.80% C and 9.87% H by mass. What is…

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Q: If 0.274 moles of a substance weight 62.5 g what is the molar mass of the substance in units of…

A: as we know,                      number of moles = mass / molar mass                    molar mass=…

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: When 95.7 g of titanium and 64.0 g of oxygen completely react, a single compound forms. Determine…

A: Empirical formula of a compound represents the simple ration of atoms of each element present in the…

Q: What is the empirical and molecular formulas

A: Given :-  Percent composition of N = 87.42 %  Percent composition of H = 12.58 %  Molar mass = 32.06…

Q: A compound was decomposed and determined to be 51.27 % C, 7.75% H and 40.98 %O  by mass.  What is…

A: Given  C%   = 51.27 % H     = 7.75 %  O     = 40.98 %  Subscript of Carbon in Empirical Formula   =…

Q: The empirical formula of a compound is CH. If the molar mass of this compound is about 52g, what is…

A: Given: The empirical formula of a compound: CH The molar mass of this compound = 52 g We have to…

Q: 0.474g of nitrogen were reacted with oxygen, the resulting mass was 0.745g. What is the empirical…

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Q: The empirical formula of a compound is CH. If the molar mass of this compound is about 78 g. What is…

A: GIven: The empirical formula of a compound: CH The molar mass of this compound = 78 g Molecular…

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: If an oxide of magnesium is 40% oxygen by mass, what is its empirical formula?

A: here, we have to calculate the empherical formula of oxide of Magnesium. we know the molar masses,…

Q: If a 50 g sample is composed of 45 g C and 5 g H, what is its empirical formula?

A: 50g of the compound is have 45 g carbon and 5 g of hydrogen. Therefore the compound have (45g ÷12…

Q: A sample of a pure compound contains 68.4% chromium and 31.6% oxygen by mass. What is the empirical…

A: Let the mass of the pure compound be 100 g. Thus, mass of chromium in the compound is = 68.4 % x 100…

Q: If the empirical formula for a compound is NO and it's molar mass is 90g/mol, what is the molecular…

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Q: the analysis of a compound shows that it contains 5.4 mol c, 7.2 mol h, and 1.8 mol n. what is the…

A: Empirical formula: The empirical formula of a compound is defined as the ratio of the simple…

Q: A molecule has an empirical formula of CH, and its molar mass is known to be 26 g/mol. What is its…

A: Given: empirical formula = CH. Molecular mass of compound = 26 g/mol

Q: A compound is found to contain 26.96 % sulfur, 13.45 % oxygen, and 59.59 % chlorine by mass. What…

A: empirical formula - formula which gives us the simplest positive integer ratio proportion of the…

Q: 0.374g of phosphorous was reacted with chlorine, the resulting mass was 2.515g. What is the…

A: Given that -  Mass of phosphorus = 0.374 g  Mass of produced Phosphorus Chloride = 2.515 g  Then,…

Q: A substance has the molecular formula C3HO6. What is its empirical formula?

A: We need to find the empirical formula for given compound

Q: The percent composition by mass of an unknown compound with a molecular mass of 150.13 u is 40.002%…

A: NOTE : You have forgot to mention O in the percent for 53.284 %. Hence I'm assuming it to be O and…

Q: Which of the molecular formulas below is also an empirical formula?

A: Empirical formula shows the simplest whole number ratio of atoms in a compound. But, molecular…

Q: A compound containing carbon and hydrogen contains 4.75 g of carbon and 0.80 g of hydrogen.  The…

A: Empirical formula is the simplest whole number ratio of the elements present in the molecule while…

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.