1. How many GRAMS of sulfur hexafluoride are present in 3.52 moles of this compound? 2. How many ATOMS of sulfur are present in 6.70 grams sulfur hexafluoride? 3. How many GRAMS of fluorine are present in 5.90x10^22 molecules of sulfur hexafluoride? 4. If Epsom salt, MgSO4.xH2O, is heated to 250 Celsius, all the water of hydration is lost. On heating a 1.635-g sample of the hydrate, 0.799 g of MgSO4 remains. How many molecules of water occur per formula unit of MgSO4? Answer molecules

Q: 5. Complete the following table: Compound Empirical Formula Molecular Formula P,O10 C,H120

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Q: How many atoms are in the substance NazPO4? 8 O 1 7

A: Substance is defined as the material, of which something is made. These may be defined as  physical…

Q: How many carbon atoms

A:

Q: How many molecules are in 2.33 moles of Dinitrogen Trioxide? A. 1.71 x 1023 molecules Dinitrogen…

A: Given  Number of mole of N2O3 = 2.33 mole  Number of molecule = ?

Q: dinitrogen

A: 1molecules of N2O4 contains 2molecules of Nitrogen atoms and four oxygen atoms

Q: A patient is having an allergic reaction and takes a 50.0 mg tablet of the over‑the‑counter…

A: Given, Mass of diphenhydramine hydrochloride = 50.0mg. Moles of diphenhydramine hydrochloride can be…

Q: How many moles of oxygen atoms are in two moles of Fe2(CrO4)3? O 24 O 12 1.445 x 1025 7.226 x 1024

A: In Fe2(CrO4)3, there are: 2 Fe atoms, 3 Cr atoms, 12 O atoms. So, In Fe2(CrO4)3, there are 2 moles…

Q: What is the percent by mass of carbon in ethylamine, C2H7N? Note the following atomic weights: H…

A:

Q: How many moles of silver atoms are there in 1.80 x 104 atoms of silver? O 3.30 x 103 moles O 3.00 x…

A: The given data contains, number of atoms = 1.80×1020.

Q: What is the empirical formula of a compound that is 62.0% C, 10.4% H, and 27.5% O by mass? C6HO3…

A: Given, percentage of C = 62.0 % percentage of H = 10.4 % percentage of O = 27.5 % we are asked to…

Q: 1. How many GRAMS of manganese(II) fluoride are present in 2.76 moles of this compound ? grams. 2.…

A: 1.

Q: hich of the following is closest to having exactly one mole of oxygen atoms?   a) 42 g HNO3 b) 32…

A: a. 42 g HNO3 1 mole HNO3 contains = 3 moles of oxygen atoms moles of HNO3 = given mass/molar mass =…

Q: Be sure to answer all parts. For many years chloroform (CHCI3) was used as an inhalation anesthetic…

A: Here we are required to calculate the percent composition by mass of compound chloroform CHCl3

Q: 8.How many carbon atoms in 70 molecules of carbonic acid, H2CO3 are. A) 100 B) 4.8x1025 C) 70 D)…

A: Carbonic acid  have formula  H2CO3. Given Number of molecule of carbonic acid =70 Number of atom of…

Q: What is the empirical formula for an unknown organic compound, if the compound contains 75% carbon…

A:

Q: * ?Which one of the following is definitely NOT an empirical formula .3 )2 نقطة( C3HO2 O C12H22011 O…

A: Answer

Q: (3) Barium chloride has a hydrated form, BaCl2 XH2O. A 7.25 g sample of the hydrate lost 1.07 g of…

A:

Q: One bottle of pain reliever ibuprofen (C13H1802) contains 500. tablets and one tablet contains 0.200…

A: Avogadro's Number : Avogadro’s number has been defined as the number of molecules in one mole of any…

Q: Answer each of the following questions. Note that none of them should require difficult…

A:

Q: What mass of compound is present in 7.60 moles of each of the following compounds? a.) Ca3(PO4)2 b.)…

A: In chemistry, number of moles refers to a unit of amount. It can also be defined as the mass of a…

Q: 3. Which of the following is equal to one mole of calcium atoms? a 6.022 x 1022 atoms of Ca b 6.022…

A:

Q: How many ATOMS of boron are present in 2.66 moles of boron tribromide ? ______atoms of boron. 2. How…

A: NA is  Avogadro number = 6.023*1023

Q: What is the molecular formula for a compound that is 46.16% carbon, 5.16% hydrogen and 48.68%…

A:

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

A:

Q: 2. Sulfur is one of the ingredients used in gunpowder. How many atoms are in 24 grams of sulfur? (Ar…

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Q: Use an online MSDS source for this question. What is the formula weight of alum, KAl(SO4)2•12 H2O?…

A: The molecular formula of the compound given is KAl(SO4)2•12H2O.

Q: How many fluorine atoms are present in 5.85 g of C2F4?

A: 1 mole of any substance contains 6.022 x 1023 atoms or molecules or particles. Here 6.022 x 1023 is…

Q: What is the empirical formula for a compound that has 26.96% sulfur, 13.45% oxygen and 59.9%…

A: Molecular formula of compound is a way to tell how many atoms of each type are present in the…

Q: 1. How many MOLES of sulfur hexafluoride  are present in 3.14 grams of this compound. 2. How many…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Without using a calculator, arrange these samples in order of increasing numbers of carbon atoms:12…

A:

Q: Phosphoric acid is a colorless, syrupy liquid used in detergents, fertilizers and carbonated…

A: Molecular formula of phosphoric acis is H3PO4.  Molecular mass is determined by the sum of atomic…

Q: A compound is found to contain 63.65 % nitrogen and 36.35 % oxygen by mass.   NO4   N2O   N2O4…

A: empirical formula of a chemical compound is the simplest whole number ratio of atoms present in a…

Q: 1. How many MOLES of phosphorus pentachloride are present in 1.47 grams of this compound ? moles. 2.…

A: 1.)Given: The mass of PCl5 is 1.47 g. Introduction: The number of moles can be expressed as he ratio…

Q: Calculate the number of molecules in 300.0 g Zn

A: No. of moles = mass/molar mass  molar mass of Zn = 65.38g/mol mass of Zn = 300.0g

Q: How many bromine atoms are present in 35.2 g of CH2Br2?

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: c) For erythrosine, a food coloring, C20H6L4N22O5, how many hydrogen atoms would be present in the…

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

Q: What is the empirical formula of a compound containing C, H, N, and O with 81.10% C, 8.24% H, 4.98%…

A: The molar amounts of C, H, N and O present in the given compound are determined first.

Q: 1. How many GRAMS of iron(II) carbonate are present in 1.93 moles of this compound ? grams. 2. How…

A: Formula used :-  Number of moles :- given mass/molar mass

Q: How many hydrogen atoms are there in the following molecules? 1 molecule of C6H12O6 2 molecules of…

A: In the molecular formula, the subscript written next to the atom represents the number of that atom…

Q: Determine the percent composition of each element in the following compounds: sulfuric acid (H2SO4)…

A: Formula Mass - The formula mass of a molecule/compound is defined as the sum of the atomic weights…

Q: hat is the molecular formula of a compound containing 24.27 carbon, 4.07% hydrogen and 71.76%…

A: Given  Carbon = 24.27%  Hydrogen = 4.07%  Chlorine = 71.76%  Molar mass = 98.96 g/mol  Atomic weight…

Q: How many atoms are  in 11 molecules of P2O5

A: In a molecule of P2O5, there are two phosphorous (P) atoms and five oxygen (O) atoms. Thus, one…

Q: Calculate the mass percent composition of each constituent element in the following molecules: (a)…

A: The question is based on the concept of stoichiometric calculations. we have to calculate mass…

Q: Which one of the following molecular formulas is also an empirical formula? O C6H602 O C2H6SO O H202…

A: The simplest positive integer ratio of the atoms present in the chemical compound is known as…

Q: What is the empirical formula of a compound containing 5.03 grams carbon, 0.42 grams hydrogen, and…

A: Given: Mass of carbon is 5.03 g. Mass of hydrogen is 0.42 g. Mass of chlorine is 44.5 g.…

Q: 1. How many GRAMS of calcium fluoride are present in 3.21 moles of this compound? grams. 2. How many…

A:

Q: How many carbon atoms does each of the following contain? a. Fe2(C,O4)3 b. Al(CH;COO)3 c.…

A: Calculation of number of carbon atom in the following compound: (a) Fe2(C2O4)3:…

Q: 1. An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53%…

A: Moles is the amount of substance present. It is determined usung molar mass of the compound. Moles…

Q: 5. How many moles are equal to 6.54x1025 formula units of potassium permanganate? 6. How many…

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.