25. Chrysotile asbestos has the following percent composition: 28.03% Mg, 21.60% Si, 1.16% H, and 49.21% O. The molar mass for chrysotile is 520.8 g/mol. Determine its empirical and molecular formula. (

Q: many oxygen atoms are in 5.34 x 10 grams LiHSO3? Hint: must use Avogadro's number

A:

Q: Sea salt is formed by natural evaporation of ocean water and contains 98% sodium chloride. The…

A: Mass of sodium Chloride can be calculated as :

Q: what is a definition of a mole

A: A mole corresponds to the mass of a substance that contains 6.023 x 1023 particles of the substance.…

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Q: Mass --> Moles 1. What is the mass of 3 moles of potassium nitrate? 0 75 moles of aluminum oxide?

A: Since you've posted multiple questions, we'll solve only the first question for you. If you want any…

Q: 48.6 g of Cu equals how many moles?

A: Molar mass of Cu, Mwt = 63.546 g/mol Given Weight , W = 48.6 g

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Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

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Q: percent by mass of sulfur in P4S10

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Q: Diamonds are a crystalline form of pure carbon, and their mass is measured in units of carats (1…

A: Given: Mass of diamond = 84.37 carat And 1 carat = 200 mg = 0.200 g…

Q: The weight of grams for 4 moles of Br

A: We know, Number of moles = Mass /Molar MassThus,

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: . The formula for ibuprofen is C3H1O2. How many moles of ibuprofen are present in 250.0-mg tablet?

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

Q: Consider the following compound: Sr3(PO4)2 *4H2O   -Calculate the theoretical percent strontium by…

A: The mass percent of strontium in Sr3(PO4)2 * 4H2O is calculated as,

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A: The number of molecules in one mole of compound is equal to the Avogadro’s number.

Q: 1. A compound is 48.38% carbon, 8.12% hydrogen, and 53.5% oxygen by mass. Find its empirical…

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Q: Consider a drop of Mercury. A chemist obtained its mass from which she showed that the drop…

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Q: 54 Determine the empirical and molecular formulas of each of the following substances:

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Q: A compound contains arsenic and oxygen as its only elements. A 1.626g sample of the compound…

A: A 1.626 g of the sample contain 1.060 g of arsenicSo, Oxygen = (1.626 -1.060)g…

Q: 1. How many moles would contain 32.0 g of C ?

A: Given: The atomic mass of Carbon=12 g/mol The given mass of Carbon=32 g

Q: What advantage is there to using a counting unit (the mole) inchemistry rather than a mass unit?

A: Using counting unit as mole in chemistry is advantageous as with help of this we can inter convert…

Q: 81.77 moles of methane to molecules

A: Given: Moles of methane = 81.77 mol.

Q: 6. If a sample of barium hydroxide has a mass of 5.190 g, determine the number of moles of the…

A: (6) Consider the given information is as follows; Mass of barium hydroixde, Ba(OH)2 = 5.190 g…

Q: Which statement BEST describes why we use moles when measuring quantities of atoms and molecules? O…

A: The mole is the unit of measurement for amount of substance in the International System of Units. It…

Q: Please calculate the mass in grams for:  8.0 mol lead oxide (PbO)

A: Molar mass of Pb = 207.2 g/mol  Molar mass of O = 16g/mol

Q: Converting Mass to Moles using Molar Mass I  A sample of chloroethane, C2H5Cl, mass of 18.5 g. What…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: 10. Calculate the mass of one mole of glucose (C,H,,O).

A: Given that , Substance = glucose (C6H12O6) moles = 1 mol Now we know molar mass of glucose=…

Q: the mass, in grams,

A: Given information: molecules of methanol (CH3OH) = 9.01×1024 Mole is the amount of the substance…

Q: Glycine is an amino acid with the formula C, H,NO,. Determine the number of moles of carbon in 49.24…

A:

Q: Use the moles of carbonate ion, CO,²-, to determine the moles of MgCO, and CaCO, present in the…

A: Part 1 :  a.) As in limestone there are both CaCO3 and MgCO3 . So CO32- will come from both CaCO3…

Q: in the laboratory, a student weighs out 0.0852 g of cobalt on balance. how many atoms of cobalt are…

A: We have 0.0852 g of Co , we have to calculate the atoms of cobalt in the sample.

Q: minutes

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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: How many NH3 molecules comprise one mole of NH3? What is the mass in grams of one mole of NH3? What…

A: In one moles of NH3 is equal to Avagadro number of Molecules of NH3  That means,  1mol of NH3 =…

Q: 22) A sample has a molar mass of 143 g/mol, identify the sample. A) ACCI B) AuCI C) AGCI

A: Molar mass of any molecule is given as the sum of the atomic masses od each of the constituent…

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Q: A rhodium-containing sample is 53.34% rhodium, 9.338% carbon, and the rest is oxygen.  Determine the…

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A:

Q: Make a Venn Diagram on empirical and molecular formulas.

A: Empirical formulas are defined by the exact ratio of atoms of different elements in a compound…

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A:

Q: If i ahve  have 73.56 g of siver nitrate.  How many moles of oxygen atoms are present?

A:

Q: A student determines the molar mass of a compound to be 145g/mol. If the theoretical value is…

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Q: Calculate the mass of 14.4 moles HgO. (In Kilograms)

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Q: Calculate the mass percent composition of carbon in CH4. Please explain and answer this!! Thank you…

A: • Mass Percent of Y = Mass of YTotal mass x 100

Q: 50. How many moles are in a 201.5-gram sample of chlorine gas, Cl,? How many molecules of Cl, are…

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Q: The percent by mass of bromine in SiCl2Br2 is

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Q: A large organic molecule has a mass of 1.41 * 10-21 kg. What is the molar mass of this compound?

A: Given that, Mass of organic molecule= 1.41×10-21 kg Molar mass is given by the following formula…

Q: the number of moles in 7.44*10^4kg of lead

A: Given Mass of lead= 7.44×104 Kg×103 g1 kg=7.44×107 g Molecular Mass of lead= 207 g/mol To calculate:…

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.