Two binary oxides of the element manganese contain, respectively, 30.40% and 36.81% oxygen by mass. Calculate the empirical formulas of the two oxides.

Q: A compound was found to have the following composition by mass: 28.03% Mg, 21.60% Si, 1.16% H, and…

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Q: 27.) What elemental analysis of a substance shows that it consists of 52.2%C, 34.7%O anf 13%H by…

A: It is a chemical formula that shows the simplest ratio of elements present in compound rather that…

Q: A binary compound of nickel and oxygen contains 78.06% nickel by mass. Is this a stoichiometric or a…

A: Given information: A binary compound of nickel and oxygen contains 78.06% nickel by mass. Let mass…

Q: Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs,…

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Q: Determine the empirical formula of (a) the rodenticide (rat killer) warfarin, which consists of…

A: The given data contains, C = 74.01% H=5.23% O=20.76%

Q: A sample of limestone (containing calcium carbonate,CaCO3)weighing 438mg is treated with oxalic acid…

A: Solution- following reaction is given below with problem solution-CaCO3 + H2C2O4 →CaC204 + H2O +…

Q: Uxálic acid, the most common component of kidney stones, has the following elemental composit C,…

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Q: A chemist is given a sample of the CuSO4 hydrate and asked to determine the empirical formula of it.…

A: Given,  Mass of hydrated CuSO4 = 42.75 g Mass of Unhydrated salt = 27.38 g  Formula of hydrate = ?

Q: In mammals, lactose (milk sugar) is metabolized to glucose (C6H12O6), the key nutrient for…

A: Given :  Calculate the mass percent of C in glucose

Q: A sample of a “suboxide” of cesium gives up 1.6907% of its mass as gaseous oxygen when gently…

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Q: Tetrodotoxin is a toxic chemical found in fugu pufferfish, a popular but rare delicacy in Japan.…

A: Given that : % composition of Tetrodotoxin : 41.38% carbon by mass, 13.16% nitrogen by mass, and…

Q: Write the empirical formula corresponding to Al₂Br₆

A: The empirical formula of a chemical compound is the simplest positive integer ratio of atoms present…

Q: Determine the empirical formula of the compound according to its elemental analysis: 38.13% C by…

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Q: A sample of an oxide of vanadium weighing 4.589 g was reduced with hydrogen gas to form water and…

A: Given : Mass of initial vanadium oxide used = 4.589 g Mass of another vanadium oxide formed = 3.782…

Q: What is the empirical formula for manganese(II) oxide—Mn2O, MnO, or MnO2?

A: Given here three different empirical formula for manganese(II) oxide,Mn2O, MnO and MnO2.we are asked…

Q: (Mass of crucible is 24.98g. The mass of the cover is 11.36g. The mass of the crucible, cover, and…

A: The mass % is equal to the ratio of the mass of the substance to the total mass multiplied by 100.…

Q: If 34.0 g of MgSO4⋅7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain?

A: Given:Mass of  MgSO4⋅7H2O = 34.0 gWe need to find mass of anhydrous magnesium sulphate  produced…

Q: 0.933 g sample of Nickle metal is heated in the presence of nitrogne gas forming 1.081 grams of a…

A: In this question, we want to determine the moles of Nitrogen gas. How we can determine, you can see…

Q: If 2.50 g of aluminum metal is heated in Fluorine gas it’s found that 5.28g will combine with…

A: Given data,  Mass of aluminium = 2.50 g  Mass of F = 5.28 g

Q: Polymers are large molecules composed of simple units repeated many times. Thus, they often have…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A sample of an oxide of vanadium weighing 4.589 g was reduced with hydrogen gas to form water and…

A: Solution :    The empirical formula gives the simple whole-number ratio of elements present in a…

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

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

Q: Complete the following calculation and upload your work. You have 5.63 x 1024 atoms of the…

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Q: The atomic mass of 6/3Li and 7/3Li are 6.0151 any and 7.0160 amu, respectively. Calculate the…

A: Average atomic mass- Naturally occurring element exists as mixture isotopes. Isotopes are with…

Q: Please express and answer the following ASAP General CHEMISTRY 1. Determine the percentage by mass…

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Q: Q9. Nitrogen is a highly reactive element and has many forms of oxides and nitrogen content of these…

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Q: Fluorine is so reactive that it forms compounds with mate-rials inert to other treatments.(a) When…

A: Fluorine is the most electronegative and reactive element of the periodic table. It requires one…

Q: The composition of a commercial cold remedy mixture is 87% aspirin, 7% caffeine, 6% vitamin C. What…

A: Mixture composition  87% aspirin 7% caffeine 6% vitamin C Mass of mixture that has 5 g Caffeine =?

Q: Calculate the mass % of O in lithium permanganate.

A: Mass percentage is the term used to calculate the concentration of any element in the given…

Q: How many grams of oxygen does it contain? What is the percentage by mass of nitrogen in the…

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Q: Iron in the earth is in the form of iron ore. Common ores include Fe2O3 (hematite), Fe3O4…

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Q: Imagine you discover a substance in a forest mushroom and find through experimentation that it…

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Q: A)determine the empirical formula of warfarin, which consists of 74.01% C, 5.23% H, and 20.76% O, by…

A: (A)The empirical formula of warfarin is

Q: A compound having an approximate molar mass of 165-170g has the following percentage composition by…

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Q: calculate the mass of calcium phosphate (in kilograms)

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: 1. What is the mass percentage composition of capsaicin? 2. What is the percentage composition of…

A: (1) Capsaicin has Following molecular formula -  C18H27NO3  And it's Molecular mass is -  =>…

Q: When 1.65 grams of magnesium is heated in a nitrogen atmosphere, a chemical reaction occurs. The…

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Q: Upon burning Mg in air, magnesium oxide and magnesium nitride are formed. The correct statement…

A: The question is based on the concept of experimental chemistry . We have to identify the correct…

Q: A sample of an oxide of vanadium weighing 4.589g was reduced with hydrogen gas to form water and…

A: The empirical formula represents the number of atoms in the molecule with the smallest positive…

Q: Determine the empirical formulas of the compounds withthe following compositions by mass:(a) 55.3%…

A: To determine the empirical formulas of the compounds: a).

Q: An acid, HEl, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

A: The number of moles of compound is given by the expression: Number of moles=Given mass of…

Q: A compound containing selenium and fluorine is decomposed in the laboratory and produces 2.231 g Se…

A: wt. Of Se obtained = 2.231 g wt. Of  F obtained = 3.221 g Empirical Formula = To be determined

Q: A 2.52-g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur is…

A: The compound contains carbon (C), hydrogen (H), nitrogen (N), oxygen (O) and sulphur (S). In three…

Q: An acid, HEl, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

A: Given, Mass percentage of acid, HEI = 20.09%  Atomic Mass: H: 1.00784 g/mol O: 15.999 g/mol El:…

Q: Arrange the following compounds from left to right in order of increasing percentage by mass of…

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Q: Aluminum, silicon, and oxygen form minerals known as aluminosilicates. How many moles of aluminum…

A: Given : mole of pyrophyllite = 4.20 moles Moles of mica = 1.60 Moles of albite = 4.60  To find :…

Q: C. An organic compound, in liquid form, comprises of 59.2% C, 13.6% H and and has a molar mass of 60…

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Q: The empirical formula of Czts is CH.

A:

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.