2.915 g of a biochemical substance containing only carbon, hydrogen, and oxygen was burned in an atmosphere of excess oxygen. Subsequent analysis of the gaseous result yielded 18.942 g carbon dioxide and 7.749 g of water. Determine the empirical formula of the substance.

Q: 3.9104g sample of a compound made of only carbon, hydrogen, and nitrogen is burned completely…

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Q: When 2.750 g of the oxide of lead is stronglyheated, it decomposes and produces 0.0640 g of oxygen…

A: The determination of the simplest form of a compound is called its empirical formula. It is…

Q: A 7.73 g sample of an organic compound containing carbon, hydrogen, and oxygen was burned in excess…

A: Given: Compound contains only C, H and O. Mass of compound combusted = 7.73 g. Mass of CO2 produced…

Q: A 0.4647 g sample of CxHyOz was burned. The combustion produced .8635 g CO, and 0.1767 g H,O.…

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Q: A block of pure magnesium metal weighs 76.9 grams. How many moles of magnesium are present in the…

A: Mole= mass of Mg / molar mass of Mg Given - 1) mass of Mg =76.9              2) Molar mass of Mg=…

Q: A 2.41 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given, mass of 2.41 g sample of a compound produced 1.36 g CO2 and 0.833 g H2O. Moles of…

Q: An element consists of 1.40% of an isotope with mass 203.973 u, 24.10% of an isotope with mass…

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Q: Complete the Avogadro's Statement for the element hydrogen: 1 mole of hydrogen hydrogen atoms =…

A: A mole is defined as that amount of the substance which has mass equal to gram atomic mass if the…

Q: An elemental analysis of a 0.3285 g of a compound containing C, H, O and S undergo combustion and…

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Q: In 1871, Mendeleev predicted the undiscovered element ekasilicon. In 1886, the element was…

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Q: A compound containing only carbon, hydrogen, and oxygen is analyzed using combustion analysis. When…

A: Given : moles of water produced = 0.0242

Q: 4.33 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A:

Q: When 7.80 mg of a compound containing only carbon and hydrogen was burned completely in 28.3 mg of…

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Q: A 6.032 gram sample of chromium is heated in the presence of excess bromine. A metal bromide is…

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Q: A 2.86 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given, mass of 2.86 g sample of a compound produced 1.61 g CO2 and 0.989 g H2O.Moles of CO2 and H2O…

Q: When 10.000g sample of metal oxide is heated, it releases 0.739 g Oxygen plus a certain mass of…

A: A question based on mole concept that is to be accomplished.

Q: A 0.700 g sample of phosphorous is reacted with excess oxygen to form a product with a mass of 1.604…

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Q: An element consists of 4.35% of an isotope with mass 49.946 u, 83.79% of an isotope with mass…

A: Average atomic mass: The average atomic mass of an element is the sum of the masses of its isotopes,…

Q: Part D. A 28.50 g sample of a compound of carbon, sulfur, hydrogen, and combusted (burned). 35.25 g…

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Q: A 1.500-g sample of a mixture containing only Cu2O and CuO was treated with hydrogen to produce…

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Q: A 4.67 g sample of a pure strontium halide reacts with excess sulfuric acid, and the solid strontium…

A: Given, A 4.67 g sample of a pure strontium halide reacts with excess sulfuric acid, and the solid…

Q: A 3.76 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given: mass of sample = 3.76 g mass of CO2 = 2.12 g mass of H2O = 1.30 g 5.92 g produced 6.07 g SO3…

Q: A given sample of Xenon flouride compound contains molecules of the same type XeFn where n is some…

A: Chemical formula which shows number of chemical elements and total element’s number available in…

Q: 1.204 x 10^24 molecules of NaOH will amount to how many liters of it?

A: Given :- We have to find  1.204 x 10^24 molecules of NaOH will amount to how many liters of it?

Q: In a first expirement, a compound is analyzed and found to contain 85.63% C and 14.37% hydrogen by…

A: 1. atom % in samp;e mole Mole ratio (divided by smallest number of moles) C 85.63 85.63 /12 =…

Q: 1.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

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Q: Calcium sulfateis a white crystalline powder. Gypsum is a mineral, or natural substance, it is a…

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Q: See the example in Introduction for set-up of calculations. Calculate the number of a) moles of F b)…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

Q: 1.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: 22.00 grams of an organic compound containing only carbon, hydrogen, and oxygen is combusted in an…

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Q: 4.33 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: EMPIRICAL FORMULA= C5H11O2NS

Q: Two binary oxides of the element manganese contain, respectively, 30.40% and 36.81% oxygen by mass.…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: A 3.09 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given- Compound consist of C, H, O, N, and S mass of sample for combustion = 3.09 g mass of CO2 =…

Q: 3. See the example in Introduction for set-up of calculations. Calculate the number of a) moles of F…

A: Number of moles of F and atoms of F in 32.5g of F2 calculated as follows

Q: A 2.25 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given-Compound consist of C, H, O, N, and Smass of sample for combustion = 2.25 gmass of CO2 = 1.27…

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.