How many calcium atoms are in 1 g of CaO? O 9.553 x 10-23 O 7.201 x 1023 O 1.074 x 1022 O 1.422 x 10-22 MacBook Pro

Q: The density of carbon tetrachloride is 1.59 g/mL. How many chlorine atoms are present in 55 mL of…

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Q: The formula for disulfur decafluoride is S2F10 . a. How many molecules are in 1.57 grams of disulfur…

A: a) Given: 1.57 g of S2F10. The no of molecules are determined as follows,

Q: Calcium chloride is 36.11% calcium. How many grams of calcium are present in 2.55 x 103 g of calcium…

A: The mass percent of the calcium in calcium chloride is = 36.11 % The mass of calcium chloride is =…

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: Given -> CaCO3(s) -----> CaO(s) + CO2(g)  Weight of sample = 2.237 gm  Weight of CO2 formed =…

Q: The “lead” in lead pencils is actually almost pure carbon and the mass of a period mark made by a…

A: Answer = 5.02 x 10 19

Q: a. What is the mass in grams of 1.75 × 1024 atoms of silicon? grams b. How many silicon atoms are…

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Q: How many molecules of hydrogen chloride (HCI) are there in 25.0 g of hydrogen chloride? (Given: H=…

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Q: A 2.00 g sample of an organic compound contains 0.675 g of carbon. How much carbon would a 4.00 g…

A: ◼️ Given that:  2.00 g of organic sample has 0.675 g Carbon  Carbon in 4.00 g of same organic…

Q: Calculate the number of C atoms in 5.50 g of C. 6.02 x 10 23 C atoms O 3.31 x 10 24 C atoms O 5.01 x…

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Q: The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of…

A: Molar mass of any element is equal to the atomic mass of that element in the unit of grams. Molar…

Q: What is the molar mass of AuCl3? O 1) 130 g O 2) 303.6 g O 3) 232.5 g O 4) 96 g

A: Atomic mass of Au= 196.97 amu Atomic mass of Cl = 35.45 amu

Q: Assume that the molar mass of A is 82.93 grams per mole and the molar mass of E is 24.61 grams per…

A: Atoms are the smallest unit of the matter, anything which occupies space and has mass is known as…

Q: What is the mass of 4.78 x 1024 nitrogen dioxide (NO₂) molecules?

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Q: What is the mass of one atom of I? O 4.745 x 10-22 g O 3.443 x 10-22 g O 6.641x 10-23 g O 2.107 x…

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Q: Given a compound with a MW of 169 amu having 13.60% Na, 8.29% N, 35.51% C, 4.77% H, and 37.85% O,…

A: Given question related to calculation of molecular formula from elemental analysis “Since you have…

Q: How many grams of sodium carbonate contain 1.773 x 10 17 carbon atoms? (A) 6.066 x 10-5 B 1.011 x…

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Q: The number of atoms of sulfur in 32 g of sulfur is 6.022 x 1023 32 3.2 x 1023 32 x 6.022 × 1022

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Q: The density of water is 1.00 g/mL at 4°C.How many water molecules are present in 2.36 mL of water at…

A: given density of water = 1 g/ml

Q: Calculate the number of atoms in 12.45 grams of iron . 1.342 x 1023atoms 1.342 x 1022toms 0.223…

A: The question is based on mole concept. We have to calculate number of atoms of iron.

Q: mass in grams of  1.74 x 10^24 atoms of beryllium

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Q: How many atoms are there in 350 g of arsenic?

A: Number of moles = mass/molar mass  1 mol = 6.022 × 1023 atoms

Q: O 4.29 x 10 10 g What is the mass of 4.63 x 1012 atoms of Fe? O 1.08 x 10 10g O 9.76 x 10 10 4.29 x…

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Q: A balanced chemical equation contains the term "2Ba(OH)2-8H₂O", which is used as a lubricating…

A: Given: The coefficient of  is 2.

Q: Consider the following table: Substance Density (g/mL) Gold (s) 19.32 Silver (s) 10.49 Lead (s)…

A: Density can be defined as mass divided by volume which is represented as; Density=MassVolume…

Q: %3D The mass of 2.21 x 1040 atoms of iron (molar mass = 55.845 g/mol) is O 2.78 x 104 g. 2.05 x 102g…

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Q: What is the mass, in grams, of 1.67 x 10^15atoms of Mn

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Q: What is the mass of 4.63 x 1012 atoms of Fe? 9.76 x 10-10 g O 1.62 x 10 10g O 1.08 x 10-10 g O 2.73…

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Q: What is the mass of 5.27 x 1021 water molecules ? 6.75 g 5.27 g 0.158 g 1.25 g

A: 1 mole of any substance contains 6.023 × 10^23 molecule of constituent atoms , ions. 6.023× 10^ 23…

Q: What is the mass of 1.89x10^23  atoms of chlorine?

A: Mass of 1 mol Cl = 35.453 g  Mass of 1 mol Cl2 = 70.906 g  1 mol contains = 6.022 × 1023…

Q: Čalculate the mass of 1.92 x 1018 atoms of Mg. O 2.73 x 10 10 g O 8.96x 10:5 g O 1.62 x 10-4g O 7.75…

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Q: What is the mass in grams of 5.40 moles of lithium? 37.5 1.29 none of the above 6.94 3.25 x 1024

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Q: The chemical formula for octane is: CH3 (CH₂) CH3 Calculate the molar mass of octane. Round your…

A: Since, Molar mass of the compound is the sum of molar mass of each atom present in the molecule.…

Q: The formula for boron trichloride is BCl3. A. How many molecules are in 9.31 grams of boron…

A: Molecular formula of Boron trichloride is BCl3. It has three Chlorine atom and one boron atom. Molar…

Q: How many atoms of calcium are contained in 112.0 grams of calcium?

A: Given :-  mass of calcium = 112.0 g  To calculate :-  total number of calcium atoms present in the…

Q: How many total ions are in 3.36 g of zinc bromate? O 1.72 x 1022 ions O 6.30 x 1021 ions O 2.09 x…

A: Given, mass of zinc bromate = 3.36 g

Q: 80 g LiCl in 100 g H2O

A: Saturated solution; Saturates solution is defined as the maximum amount of a solute can be dissolved…

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.