How many moles of water, H 2O, are present in 75.0 g of H 2O?     75.0 moles     7.50 moles     1.35 × 103 moles     4.41 moles     4.17 moles

Q: Determine the quantity in moles of Ag that are in 86.6 grams of Ag₂O.

A: mass of Ag2O = 86.6 g To determine: moles of Ag

Q: 13. How many moles are represented by 3.01·10“ helium atoms? 5 moles 0.75 moles 0.50 moles 1 mole

A: Given: no of helium atoms = 3.01 x 1023 atoms We know that, Avogadro number, NA = 6.02 x 1023 atoms

Q: 8. A 10.00 g sample of a compound that consists of carbon and hydrogen is found to consist of 7.99 g…

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Q: How many molecules are in 1 mole of CóH1206?

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Q: STARTING AMOUNT X Determine the quantity of moles in 4.21 x 1023 molecules of CaCl ADD FACTOR x( )…

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Q: How many molecules are there in 1.77 moles of NaF? O 1.07 x 10 24 molecules O 254 x10 22 molecules O…

A: In 1 Mole of any compound, there are avogadro no. Of molecules, ie., 6.023*1023 molecules.

Q: Pheromones are a special type of compound secreted by the females of many insect species to attract…

A: Molecular formula of pheromone: C19H38O mass of pheromone (C19H38O) = 1.3 × 10-12 g Number of…

Q: How many individual molecules of Mg(OH)2 are in 5.8 g of Mg(OH)2?

A: Mass of Mg(OH)2=5.8gmolar mass of Mg(OH)2=58.3g/molnumber of molecules=?

Q: How many moles are in 34.0 g of Na2SO4?

A: The given grams of Na2SO4is converted into moles by using following mass to moles conversion…

Q: A mole of the water is: 12.0000 g H2O one H20 molecule O 6.02 x 1023 g H2O 6.02 × 1023 H20 molecules…

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Q: Calculate the formula weight and molar mass of each compound. a. MgSO 4 (magnesium sulfate), a…

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Q: What is the mass in grams of each quantity of lactic acid (C 3H 6O 3, molar mass 90.08 g/mol), the…

A: Given, Molar mass = 90.08 g/mol Formula Used, moles (n)=Mass requiredMolar Mass 1 mole = 6.023 x…

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.