Determine the number of moles in 2.66 x 1022 formula units of potassium iodide.

Q: Determine the number of moles in 1.83 x 1023 formula units of BaCl2.

A:

Q: Calculate the mass of sodium in 21.5 g of NaCIO3. O 32.9 g O 4.65 g O 0.202 g O 0.465 g

A:

Q: Calculate the number of oxygen atoms in a 80.0 g sample of forsterite (Mg, SiO,).

A: number of moles = mass/molar mass  1 mol contain atoms equal to 6.022 × 1023

Q: Calculate the number of grams in 1.5 x10^16 atoms of sulfur.

A: Given, atoms of Sulfur = 1.5 x 1016  Molar mass of Sulfur = 32.065 g/mol

Q: Calculate the mass (in grams) of carbon in 1.88 grams of C2F3Cl3.

A: Mass of C2F3Cl3 = 1.88 g Moles of C2F3Cl3 = 1.88 g / (187.376 g/mol) = 1.0033 × 10-2 mol Since 1…

Q: Determine the mass in grams of 1.6 × 10- mol glucose , CeH:2Os

A: The molecular formula of glucose is C6H12O6

Q: Determine the quantity of moles of hydrogen in 3.06 x 103g of glycine, C:H$NO:?

A: The number of moles is calculated as: Moles=Given massMolar mass......(1) The molar mass of glycine…

Q: Calculate the molar mass. a. Co(NO3)2 x 6H2O b. Ni(NO3)2 x 6H2O

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Q: The elemental mass percent composition of succinic acid is 40.68% C, 5.12% H, 54.19% O. Determine…

A: The Mass of compound = 100 g The mass of C = 40.68 g The molar mass of C = 12 g/mol  The mass of H =…

Q: Calculate the number of moles of hydrogen peroxide molecules, H2O2, present in a sample containing…

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Q: Determine the percentage composition (by mass) of fluoride in tin(II) fluoride.

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Q: The chemical formula for caffeine is C3H10N4O2. Determine the percent composition of each element in…

A: Percent composition can be find using molar mass.   Molar mass of caffeine is 194 g/mol

Q: 9. Calculate the mass in grams of 1.378 x 1025 formula units of sodium hydrogen carbonate.

A:

Q: What would you need to do to make C14H21O14 an empirical formula?

A: To find emperical formula.

Q: Determine the percent composition by mass of acetaminophen, the active ingredient in…

A: The molecular formula of Acetominophen is C8H9NO2. The total mass of the given compound is,…

Q: 1. 84 g of CsH&O6 contains 6.02 x 1023 molecules.

A: Molar mass of C5H8O6 = 5×12 + 8×1+ 6 × 16 = 164 g 1 mol of any substance contains= 6.022×1023…

Q: Calculate the number of moles of Magnesium ions, (Mg+2), in 80 g of Magnesium sulfate (MgSO4).

A: 1 mole = 6.022×1023 = Avogadro's number The number of moles of a substance is given by the formula…

Q: Calculate the percentage composition for PCI3. Mass percentage of phosphorus = Mass percentage of…

A: Formula : PCl5 Molar mass of P = 31 g/mol Molar mass of Cl = 35.5g/mol  Molar mass of PCl5 = P +…

Q: Determine the number of moles in Cl in 2.2 moles of Mg(CIO4)2

A: Given information,  Moles of Mg(CIO4)2 is 2.2 moles

Q: Calculate the mass in grams of 1.40 x 104 molecules of Phosphorus triiodide, Pl3. g

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Q: Calculate the mass of tetraborane that contains a billion (1.0x10^9) boron atoms.

A: Given :- number of boron atoms = 1.0 × 109 atoms  To be calculated :- mass of tetraborane (in grams)

Q: Calculate the number of moles equivalent to 5.4 x 10 atoms of helium.

A: According to Avogadro law  1 mole = 6.022* 1023 atoms

Q: The elemental mass percent composition of ibuprofen (a nonsteroidal anti-inflammatory drug [NSAID])…

A: Empirical formula always represents the simplest/easiest ratio carried by particular molecule's…

Q: Calculate the moles of O atoms in 0.184 g of Mg(NO3)2. mol O atoms

A:

Q: Calculate the number of O atoms in 0.00963 g of CaSO4 · 2H2O.

A: 1 mole = 6.022×1023 (Avogadro's number )  The mass of one mole of molecules of a compound is known…

Q: Determine the number of moles in: (a) 100 grams of magnesium hydroxide (Mg=24, O= 16, H=1) (b)1.75 x…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Calculate the mass in grams of 2.65 x 1023 molecules of sulfur dioxide O 28.2 g sulfur dioxide O…

A:

Q: Calculate the mass percent of chlorine in Mg(ClO4)2.

A: We know that, Molar mass of Cl = 35.45 g/mol Molar mass of Mg(ClO4)2 = 223.206 g/mol

Q: Calculate the mass percent composition of carbon in carbon containing compound. C2H6

A: The compound given is C2H6  We find the molar mass of the compound:  = 2*12 + 6*1= 24 + 6 = 30 g/mol…

Q: Nickel(II) sulfate (NiSO4) is a chemical compound used to nickel plate metal objects. Calculate the…

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Q: F. Determine the number of moles in 3.82 X 10 molecules of water.

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Q: how many molecules are in 2.49 x 10^3 g of cuso4

A: The number of molecules in 2.49 x 103 g of cuso4 has to be given,

Q: Calculate the number of moles in 10.0 grams of BaF 2

A:

Q: Determine the number of moles in 2.72 x 10^23 formula units of CaCl2

A: 1 mol of CaCl2 contains 6.022×1023 formula units. Therefore no. of mol in 1 formula unit are:

Q: How many moles are in 2.45 x 10^23 molecules of Na2S?

A:

Q: Determine the mass in grams of 1.6 x 10 mol glucose, C&HzOs

A: Given that,  Moles of glucose= 1.6×10^-3 mol We know , molar mass of glucose= 180.156 g/mol

Q: Calculate the mass of 3.62 x 104 molecules of glucose (C,H1206).

A: Given that :Molecules of glucose (C6H12O6) = 3.62×1024 molecules Mass of glucose =?

Q: Determine the percent composition by mass of all elements in Mn,O5.

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Q: What is the correct formula of a hydrate that contains 24.5% H2O and 75.5% CaCl2, by mass percent?

A: since we know that general formula of hydrate of CaCl2  is CaCl2•xH2O where x is the number of mole…

Q: determine the quantity of moles in 4.21 x 1023 molecules of CaCl2

A: The number of moles of a substance is determined as the mass of a substance upon its molar mass. The…

Q: Determine the molar mass of ammonium oxide, (NH4)2O.

A: Introduction: We need to calculate molar mass of (NH4)2O

Q: Determine the number of moles of Zn atoms in 3.15 g of zinc metal.

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Q: determine the mass in grams of 1.3 moles of Ca(OH)2

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Q: determine the molecular formula of a compound with an empirical formula of NH2 and formula mass of…

A: Since the molecular formula of any compound using its empirical formula can be written as  Molecular…

Q: What is the number of moles of O atoms in 3.5x10^3 mol of Al2(SO4)3?

A: Every compound is made up of certain atoms. These atoms combine in a fix ratio to form compounds.

Q: Calculate the number of O atoms in 0.695 g of CaSO4·2H2O.

A: For calculating the number of O atoms in 0.695 g of CaSO4•2H2O first we calculate the number of…

Q: What is the mass of 1.36 x 1022 molecules of HCI? O 36.5 g 1610 g

A:

Q: Calculate the molar mass of the following compound: Ca(OH)2 O 40.08 O 34 O 74.10

A: Molecular mass of any compound  =  Atomic mass of all the atoms present in compound

Q: The number of moles in 36 grams of water is O 2 1 O 20

A:

Q: Calculate the number of moles in 6.85x1015 atoms of 3H.

A: It is known that one mole of a substance contains 6.022 × 1023 particles (atoms, molecules or…

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.