Strontium fluoride SrF2 4.33x10

Q: calculate the masss of carbon in a 1-carat diamond that contains 7.56 x 10^22 atoms of carbon

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Q: Calculate the mass in grams of a sample of NO2 that contains 1.000 x 10^25 molecules.

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Q: A sample of H2O that contains 3.79 ×10^25 water molecules is what amount of water (in moles)? What…

A: The number of moles is the mass of the substance upon the molar mass. The number of moles is also…

Q: Determine the mass percent of carbon in Fe(C2H3O2)3.

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Q: In the chemical equation 2 Co(NO3)3 + 3 (NH4)2S → Co₂S3 +6 NH4NO3, how many hydrogen atoms are on…

A: First, consider the subscript present in the symbol of the element. If there is no subscript, it is…

Q: OH OH .CI H. ÓH 一て MgBr OH J-チーア OH

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Q: What is the mass (in kg) of aluminum in 6.75×10^23 molecules of Al(C9H6ON)3? (MM Al = 26.98 g/mol)

A: Number of moles is calculated by dividing the given mass with molecular mass. In the given…

Q: ZnSO4 + Li,CO3 > ZnCO3 + LizSO4

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: How do I calculate the mass of 6.20 x 10^22 tungsten atoms?

A: Given : Number of tungsten atoms = 6.20 x 10^22  Molar mass of tungsten = 183.84 g/mol

Q: Calculate the mass of 5.70 X 10^22 tungsten atoms.

A: Given No of atoms of tungsten = 5.70 x 1022   Also, Molar mass of tungsten =  183.84 g

Q: Calculate the mass (in g) of 2.0x10^24 atoms of Pt.

A: Given, number of atoms of Pt = 2.0 x 1024 atomsWe know, => moles of Pt = number of atoms of Pt /…

Q: Find the number of hydrogen and oxygen atoms present in 15.0 g of pure hydrogen peroxide

A: we have to calculate  the number of hydrogen and oxygen atoms present in 15.0 g of pure hydrogen…

Q: How many moles of boron tribromide are present in 4.29 x 10^22 molecules of this compound?

A: Given, Number of molecules of boron tribromide = 4.29 x 1022 molecules Number of moles of boron…

Q: How many atoms of all kinds are contained in 42.1 grams of calcium carbide (Ca2C)? Ans: 8.25 x 10^23…

A: Given :                Mass of Ca2C = 42.1 gm                 Molar mass of Ca2C = 92 gm mol-1…

Q: The relative mass of a compound containing carbon, hydrogen, and oxygen is 180. The mass percentage…

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Q: A student has a sample of zinc that weighs 22.19 g. How many zinc atoms are in this amount of zinc?…

A: The Number of atom present in one mole of an element is equal to the Avogadro's number (6.022×1023…

Q: How many atoms of O are found in 1.00 x 10 2 g of K 2Cr 2O 7 ?

A: Number of atoms of Oxygen present in the given compound can be calculated as -

Q: How do I calculate the theoretical mass percent of barium in a sample of BaCl2*2H2O?

A: Generally, the %mass is determined by dividing the species mass with total mass of sample which then…

Q: What is the average atomic mass of chlorine in this sample? 35.50 u, 35.86 u, 36.14 u

A: Answer:

Q: You analyzed 2.475 g of a mixture of NaCl, SiO2, and CaCO3. You isolate 0.825 g NaCl, 0.825 g of…

A: we were told that the original mixture contained 35% NaCl, 45% CaCO3, and 20% SiO2.

Q: Determine the number of nitrate ions in 177 g Mg(NO3)2.

A: Mole is defined as weight of substance divide by it's molar mass.…

Q: what is the final formula) - dinitrogen trisulfide - potassium sulfide - zinc acetate - lithium…

A: Dinitrogen trisulfide : N2S3Potassium sulfide : K2SZinc acetate : Zn(CH3COO-)2Lithium sulfite…

Q: Calculate the number of atoms present in a sample of 1.50 grams of silver (Ag).

A: Find the mole of silver that present in 1.50 grams of silver sample,

Q: Calculate the number of grams of lithium in 5.44 x 1021 atoms of lithium.

A: Given,  Number of atoms of Lithium=5.44×10^21 We know, molar mass of Lithium atom=6.941g/mol Also…

Q: ntify composition of the substance with each formula as one of the four: molecular (M), ionic (I),…

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Q: Determine the Average Atomic Mass of the mixtures of Hydrogen isotopes. 99% 'H, 0.8% ²H, and 0.2% 'H

A: Answer is explained below.

Q: 7. Use the following atomic masses (in g/mol): As = 74.92; O = 16; K = 39.1; Cr = 52; Na = 23; Cl =…

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Q: 4oloctron uminum lóA AlT ఆంం canfiquratioA Ale 3+ lán Al

A: To find out the electronic configuration of an ion at first, find out the electronic configuration…

Q: 22 Calculate the mass of 3.0 × 1044 atoms of sulfur. O 1.6 g O 16 g O 160 g O 0.16 g

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Q: Calculate the number of atoms in a 2.92 x103 g sample of boron.

A: Firat calculate number of moles.

Q: grams of hydrogen in 8.92 x 1022 molecules NH3

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Q: Imagine that you have discovered several stable isotopes of a new element, which you call element X.…

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Q: A nail is coated with a 5.49E-2 cm thick layer of zinc. The surface area of the nail is 8.27 cm2.…

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Q: What is the total number of oxygen atoms on the left-hand side of this chemical equation? 2 Ca₂…

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Q: Determine the mass (in grams) of aluminum present in 1.08 grams of Al2S3?

A: Molar mass of the elements is equal to the sum of the atomic masses of all the elements. Molar mass…

Q: Calculate the number of atoms in a 6.75×10^3 g sample of sulfur.

A: Calculate the number of moles of Sulfur

Q: Calculate the mass, in grams, of sample. 2.82x10^22 helium atoms

A:

Q: the formula for this batch of Epsom salts?

A: Mass percent of water in Epsom salt = 100 x Mass of water/Mass of Epsom salt Mass of Epsom salt =…

Q: How many grams of chromium(II) fluoride contain 3.80 grams of Cr2+?

A: We have to calculate number of  grams of chromium(II) fluoride contain 3.80 grams of Cr2+

Q: 2. What is the mass percent of iron in Fe(NO3)3 • 9H2O?

A:

Q: Br2, Fe

A: Benzene gives an aromatic electrophilic substitution reaction. The reaction completes in two steps.…

Q: Determine the mass of 3.01 × 10^20 atoms of Sulfur.

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Q: How to separate potassium chloride and lead(2) sulfate?

A: As we know pbso4 is insoluble in water and KCl is Soluble in water So when we put them into water…

Q: Which one of the following has the smallest mass percent of F in the compound? A) SF₆ B) NaF…

A: The mass percentage of fluorine is 78.04 %.

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.