How many moles of Cl atoms are there in 65.2 g CHCI3? O 3.3 x 1023 mol O 0.548 mol O 1.64 mol O 1.09 mol O 3.0 mol

Q: What is the mass % of sulfur in aluminum sulfate Al2(SO4)3 rounded to three significant figures?

A: Considering the atomic mass of elements present in the aluminium sulfate, we determined the molar…

Q: How many moles are there in 25 g of hydrogen Chloride, HCl?     4.32 x 10^23 molecules   5.34 x…

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Q: How many chlorine atoms are present in 0.778 mol of Cl,? O 4.69 x 1023 atoms 1.56 atoms O 9.37 x…

A: Answer: 9.37 × 1023 chlorine atoms are present in 0.778 mole of Cl2

Q: How many bromine molecules, Br2, have a mass equal to 31.8 g?

A: 1.20 *10^23 molecules.

Q: How many formula units are in 0.032 moles of Fe2O3? A sample of 7.30x10^24 atoms of silver weighs…

A: We need to calculate  formula units in 0.032 moles of Fe2O3 mass of 7.30x1024 atoms of silver…

Q: A chemical compound containing only carbon, hydrogen and oxygen is found t composed of 57.43% C and…

A: Empirical formula:  Simplest mole number ratio of atoms present in a compound is called is called…

Q: How many grams of rhenium are in a 88.24-gram sample of ReCl 3? The molar mass of ReCl 3 is 292.57…

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Q: 5. How many molecules are there in 6.71 mol of glucose (C6H1206)? 1 mol = 6.02 x 1023 molecules

A: Final answer:- 4.04*1024 molecules

Q: How many moles are there in 178.66 g of Hexane (CGH14)? O 3.57 O 0.48 O 2.08 O 0.28

A: Given mass of C6H14 = 178.66 g Moles = Given mass / Molar mass  Molar mass of C = 12 g/mol  Molar…

Q: How many grams are in 5.32 x 10" molecules of CO. s of

A: The given data contains, Number of molecules of CO2 = 5.32 x 1022 molecules.

Q: Phosphorus pentachloride, PCIs, a white solid that has a pungent, unpleasant odor, is used as a…

A: mole is equal to weight of substance divide by it's molar mass

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 molecules are there in 39 grams of oxygen? 39.0 g O, x =? molecules O2 32.00 g 02=1 mol O2…

A: Applying formula of moles  n=w/m  No of molecules=n×NA

Q: How many moles are there in 3.67 x 1023 molecules of CH4? How many grams are there in 0.385 mol of…

A: Given 3.67 x 1023 molecules of CH4  0.385 mol of CH3CH2CH2OH

Q: Given 70 g of CI2, how many particles of Br2 is produced? Cl2 + 2KB → 2KCI + Br2 O 6.02 x 1023…

A: First calculate moles of Cl2. Then use mol to mol ratio to calculate moles of Br2 and use relation…

Q: 6. Calculate the mass of 4.50 moles of CazPO4 . O 968 g O 215 g O 0.0209 g O 87.1 g 7. The molecular…

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Q: How many atoms of chlorine are present in 5.0 moles of carbon tetrachloride? 1 mole = 6.02 x 1023…

A: Given  5 moles of carbon tetrachloride  Formula of carbon tetrachloride = CCl4

Q: In 0.4 ure in 2.9 mol of

A: Firstly Calculate the moles of Br atom in CHBr3  moles of Br atom = 3 • ( moles of CHBr3 )  Moles of…

Q: How many Li atoms are contained in 77.9 g of Li? 5.90 x 1025 Li atoms 7.09 x 1021 Li atoms 8.49 x…

A: Given: Mass of Li atoms = 77.9 g.

Q: A compound has an empirical formula of HgCl. If the molecular mass of the compound is 472.2 g/mol,…

A: Here we are required to find the molecular formula.

Q: After a 664 g iron bar stands in moist air for a month, exactly one–eighth of the iron turns to rust…

A: Initial mass of iron bar = 664 g One-eighth of iron turns into rust . It is given that one-eighth of…

Q: Elemental phosphorus occurs as tetratomic molecules, P4. What mass of chlorine gas is needed to…

A: Given that  Elemental phosphorus occurs as tetratomic molecules, P4 The mass of chlorine gas is…

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

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Q: When heated, KClO3 decomposes into KCl and O₂. 2 KCIO3 → 2 KCl + 30₂ If this reaction produced 91.6…

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Q: 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…

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Q: The molar mass of CuCl2 is 1. 134.6 2. 98.9 3. 207.7 4. 63.55

A: Molar mass of CuCl2 = 134.5 g/mol Molar mass of Cu=63.54g/mol Molar mass of Cl=35.45g/mol So molar…

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: Calculate the mass in grams of 1.25 x 1023 molecules of carbon monoxide. O 5.82 g carbon monoxide O…

A: A mole is basic unit (atom/molecule / ion).

Q: A compound that contains onlý carbon, hydrogen, and oxygen is 68.5% C and 8.63% H by mass. What is…

A: We have given that   % of C = 68.5 %  % of H = 8.63 % % of O = 100 - 68.5 -8.63 = 22.87 %

Q: Solve this

A: The molecular mass of a substance indicates the sum total of all the masses in amu of the atoms of…

Q: How many Cl atoms are in 0.0728 g of PCI 3? 1.81 x 10 24 Cl atoms 4 38 x 10 22 Cl atoms 1.32 x 10…

A: We know that, Number of moles = mass / molar mass Given, Mass of PCl3 = 0.0728 g molar mass of PCl3…

Q: How many moles of Cl atoms are there in 65.2 g CHCI3? O 1.64 mol O 3.00 mal O 0548 mol O 1.09 mol

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Q: How many moles are there in 176 g of Octane (C3H18)? O 0.57 O 1.54 O 0.65 O 1.76

A: Given, compound = Octane              mass of the given octane = 176 g Molecular formula = C8H18…

Q: How many atoms of oxygen are in 12.99 g of nickel(II) nitrate? 2.569 x 1023 1.284 x 1023 1.944 x…

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Q: You determine the empirical formula of a compound to be CH3. In a separate experiment, you determine…

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Q: How many calcium atoms are in 1 g of CaO?

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Q: What is the average mass, in grams, of one atom of iron? O 1.66 x 10-24 g O 6.02 x 1023 g 9.28 x…

A: Given  Element  = Iron  ( Fe )  Mass of one atom = ?

Q: How many atoms are in 25.6 g tin? O 1.30 x 1023 atoms O 3.01 x 1024 atoms O 3.01 x 1023 atoms O 6.02…

A: Moles of tin are, Moles = mass ÷ molar mass Moles = 25.6 g ÷ 118.71 g/mol Moles = 0.22 mol

Q: How many moles are there in 106 g of Octane (C3H18)? O 1.08 O 0.94 O 1.06 O 0.93

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Q: A molecular compound contains carbon, hydrogen, and oxygen atoms in its formula. A chemical analysis…

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Q: What number of Ge atoms and what amount (moles) of Fe atoms are in 500.0 g of iron

A: Mass of Iron (Fe) = 500 g Molar mass of iron = 55.84 g/mol   We know that ; * 1 mole of substance =…

Q: 1.00 mole of copper(II) sulfate, CuSO4, contains how many O atoms? O 2.41 x 1023 O atoms 2.41 x 1024…

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Q: An oxide of tungsten (symbol W) is a brown solid. If 8.54 g of the compound contains 7.27 g of…

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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.