If a sample of LizS is found to contain 2.46 · 1023 Lit ions how many grams of Lizs formula units are present?

Q: How many grams are in 7.59 x 1023 molecules of Fe2O3?

A: Given 7.59 ×1023 molecules of Fe2O3 . To find grams of Fe2O3 .

Q: A particular protein sample is found to have 1 atom of iron in its chemical formula. If the mass…

A: Mass percent expresses the solute concentration in any mixture. The division of weight of dissolved…

Q: Calculate the mass percent of H in B4H9CI. %

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Q: A molecule has the formula Na₂SOx, where X is a number of oxygen atoms. If the molar mass of the…

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

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

A:

Q: How many moles of oxygen atoms are there in (6.58x10^2) grams of P4O6

A: Molar mass of P4O6= 219.88g/molGiven mass of P4O6 = 6.58×102 gNumber of moles of P4O6= given…

Q: Calculate the mass in grams of 1.10 x 104 molecules of Sulfane, H2S. g NA= 6.022 x 1023

A: Mass of H2S in grams = 6.210 g

Q: How many H atoms are there in (2.22x10^2) grams of NH3?

A: The answer to the following question is given as:

Q: What is the mass of 3.367 moles of Ca(OH)2?

A:

Q: What is the mass in grams of 6.49 × 10²⁵ molecules of Br₂?

A: Avogadro’s number is the number of particles present in one mole of any substance, which has a value…

Q: Calculate the mass in grams of 1.10 x 1024 molecules of Sulfane, H2S. g NA= 6.022 x 1023

A:

Q: How many millimoles of Ca(NO3)2 contain 4.78 × 1022 formula units of Ca(NO3)2? The molar mass of…

A: One mole of any substance is defined as the amount of the substance which contains 6.023×1023…

Q: What is the molar mass of MgSO4 ● 7 H2O ? H=1.01 O = 16.00 Mg = 24.31 S=32.07

A: Given, molar mass of MgSO4 ● 7 H2O  = ? Note: The molar mass of different atoms are, H = 1.01 g/mol…

Q: What is the mass in grams of 4.59 × 10²⁵ molecules of I₂?

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Q: What is the mass in grams of 3.88 × 1025 molecules of Br2?

A:

Q: What mass of ammonia gas (NH3) contains 2.8*10^24 hydrogen atoms?

A:

Q: How many moles of Ca2+ ions are present in 7.52 · 1020 Ca(OH)2 formula units? Express your answer in…

A: Given : Number of formula units of Ca(OH)2 = 7.52 X 1020

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: How many moles of Fe(NO3)2 are present in 32.176 g Fe(NO3)2?

A: Molar mass of Fe(NO3)2 = 56 + (14+ 16x3) x 2 = 56 + 124 = 180 g/mol Given mass of Fe(NO3)2 = 32.176…

Q: How many grams of tin are in 10.44 grams of an (oh)2 .the molar mass of an (oh)2 is 152.63g/mol

A: Answer:mass of Sn(OH)2 = 10.44 gmass of tin (Sn) = ?Note: Molar mass of Sn(OH)2 = 152.73 g/molMolar…

Q: One mole of water contains 6.022 × 1023 hydrogen atoms

A:

Q: What is the formula mass of CaSO4·½H2O?

A: Given, Formula mass of CaSO4·½H2O = ? Note: Atomic mass of Ca = 40.078 g/mol Atomic mass of S =…

Q: Calculate the mass in grams of 6.12 mole Cu(NO3)2.

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: Calculate the mass in grams of 4.46×1024 molecules of propylamine. The chemical formula for…

A: Avogadro constant = 6.022 × 10²³ /mol The moles of propylamine can be calculated asNo. of moles of…

Q: What is the mass percentage of each element in the compound Al2O3? Enter the percent mass of…

A: Answer:- This question involves the calculation of mass percent of each element present in the given…

Q: Calculate the mass in milligrams of 4.15×1020 formula units of Bi(NO3)3·5H2O.

A: Given : Number of formula units of Bi(NO3)3·5H2O = 4.15 X 1020

Q: 2. What is the mass (in grams) of 7.11 X 102 molecules of tetraphosphorous trisulfide?

A: Given, number of molecules = 7.11×1022 Avogadro's constant = 6.022×1023 molecules.mole-1

Q: How many moles of atoms are contained in 5.80 X 1024 C2H2 molecules?

A: Number of molecules is equal to the mole multiply by avagadro number.   Avagadro number is equal to…

Q: What is the molecular formula for a substance that in 1.00 mole of sample contains, 1.00 mole of C,…

A:

Q: What is the mass in grams of 5.57 × 10¹⁵ molecules of SO₂?

A: We know that , 1 mole = 6.023x1023molecules/atoms/ions.1 mole = molar mass of molecule .6.023x1023…

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: Manganese(Mn) is a transition element essential for the growth of bones. What is the mass in grams…

A: Manganese is represented by atomic symbol Mn and it is a transition element. Also, it can be said…

Q: What is the mass, in grams, of 1.311x10^24 molecules of Naproxen, C14H13NaO3

A:

Q: number of formula units

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.