1 Compound X has a molar mass of 416.41 g-moland the following composition: element mass % phosphorus. 14.88% chlorine 85.12% Write the molecular formula of X.

Q: Cyanocobalamin( vitamin B12) contains 4.34% cobalt by mass. what is the ,olar mass of…

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Q: What is the % by mass of a silver ring that has a mass of 12.0 g and contains 11.1 g pure silver?

A: Mass percentage of a compound represents the mass of solute present in a given mass of compound. It…

Q: The percent by mass of potassium in KOH is  The percent by mass of nitrogen in CH5N is %.

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Q: How many formula units of MgBr, are in 18.91 g?

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Q: Measurements show that unknown compound X has the following composition: element mass % nitrogen…

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Q: A compound of found to contain 14.87% phosphorus and 85.13% chlorine by mass. What is the empirical…

A: To get the empirical formula we need to consider moles of each elements present. Then calculate the…

Q: sodium chloride is 60.66% chlorine by mass what is the mass % of sodium in sodium chloride?

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Q: Calculate the percent composition by mass of cach element in AIKOH),. Use at least three significant…

A: Following are the atomic masses of the atoms in Al(OH)3: atomic mass:Al = 27 g/molO = 16 g/molH = 1…

Q: s the molar mass of the compound?

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Q: Measurements show that unknown compound X has the following composition: element mass % calcium…

A: Here in question we have mass percent of Calcium, oxygen and phosphorus. We know that molar mass of:…

Q: The percent by mass of manganese(II) in MnSO3 is %.

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Q: binary compound of carbon and hydrogen has the following percentage composition: 85.63% carbon,…

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Q: Measurements show that unknown compound X has the following composition: element mass % carbon 62.4%…

A: Steps to Empirical Formula Determination : 1. Assume percentage composition as mass of the…

Q: A compound contains 6.0 g of carbon and 1.0 g ofhydrogen, and has a molar mass of 42.0 g/mol. What…

A: The empirical formula is the chemical formula of the simplest ratio of the number of atoms of each…

Q: Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when…

A: a)The molecular formula for Aspartame is C14H18N2O5 one mole is equal to one moles of aspartame or…

Q: A compound is composed of oxygen and 30.45% by mass nitrogen.  What is the empirical formula?

A: Empirical formula of a compound is the formula which is represented by the simplest ratio of atoms…

Q: b) Mass of N2 produced when moles of K2O is produced. blank-blank-blank-conversion factor 1 blank -…

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Q: What is the empirical formula of a compound of carbon, hydrogen, and Oxygen that contains 51.56% and…

A: Given:: %C = 51.56%  %H = 14.09 % then, empirical formula = ?

Q: How many molecules of a compound are in 25.0 g if the molar mass of the compound is 182.9 g/mol?

A: Interpretation: The number of molecules of a compound are in 25.0 g with the molar mass of the…

Q: Complete the table of compounds that contain only manganese and oxygen. Molar Mass % Mn % O (by (by…

A: Manganese(III)oxide  Formula – Mn2O3 Molar mass of MnO  = 2 × Atomic mass of Mn + 3 × Atomic mass of…

Q: The number of moles of caffeine in 50.0 g of caffeine is?

A: The given Mass of caffeine = 50.0 g  Molecular formula of Caffeine is C8H10N4O2

Q: A compound is found to contain 31.14 % sulfur and 68.83 % chlorine by mass. whats the empirical…

A: Since, you have post a question with 2 sub-parts but the information for second part to be solved is…

Q: Measurements show that unknown compound X has the following composition: element mass % calcium…

A: Write the empirical formula of X....

Q: The element X forms the chloride containing 75.0% Cl, by mass. What is element X?

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Q: Measurements show that unknown compound X has the following composition: element mass % carbon 62.6%…

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Q: A compound has the following elemental analysis: Element % composition C 48.65 H 8.11 O 43.24…

A: Element %  of  C = 48.65 % = 48.65 gElement %  of  H = 8.11 % = 8.11 gElement %  of  O = 43.24 % =…

Q: Calculate the mass of sodium aurothiomalate (CH.AuNaO4S) that contains 100 g of go

A: we are given 100 gram of gold in C4H4AuNaO4S  we need to find the mass of C4H4AuNaO4S

Q: Measurements show that unknown compound X has the following composition: element mass % chromium…

A: The simplest whole number ratio of elements present in a compound is represented by the empirical…

Q: What is the percent composition by mass (to one decimal place) of Oxygen and hydrogen in 1 mol of…

A: The mass of 1 mol of atoms is called atomic mass For example :-  Atomic mass of H = 1.0 g/mol Atomic…

Q: what is the percent by mass of tungsten in the calcium tungstate compound CaWO3, COMMONLY called…

A: Molar mass of tungsten, W = 183.84 g/molMolar mass of calcium tungstate, CaWO3 = 40 + 183.84 + (3 ×…

Q: How many formula units are in a sample of NaCl that has a mass of 175 g?

A: Number of formula units = moles X Avogadro number Avogadro number = 6.022 X 1023  Since moles = mass…

Q: c) Mass of KNO3 decomposed when grams of K2O is produced. blank-blank-blank-blank- conversion…

A: Conversion factors = ? Decomposition Reaction of KNO3 is  4KNO3 ==> 2K2O + 5O2 + 2N2

Q: What is the mass percent of carbon in the following compound? C4H10 O4

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Q: The percent by mass of silver in Ag,CO3 is %.

A: Molecular mass of Ag2CO3 = 2*atomic mass of Silver + atomic mass of Carbon + 3*atomic mass of Oxygen…

Q: Measurements show that unknown compound X has the following composition: element mass % carbon 18.1%…

A: Given, composition of each constituent of a molecule is: Carbon---- 18.1% hydrogen ---- 2.27%…

Q: - 1 Compound X has a molar mass of 579.36 g·mol 'and the following composition: element mass %…

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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.