Calculate the number of molecules in 1 litres of water. [density of water 1.0 g./cc. ∴ mass of water = volume × density]

Given, Vol of water = 1.5 lit = 1500 mL =1500 cc Density of water 1.0 g./cc.. ∴ Mass of water = volume × density Hence, mass of water = 1500 x 1 = 1500 g Gram molecular mass of water = 2H + O = (2 x 1) + 16 = 18 g So, 18 g of water = 6.023 x 10 23 molecules Therefore, 1500 g of water will have Hence, the number of molecules in 1 litres of water is 83.33 x 6.023 x 10 23 molecules.

Calculate the number of moles and molecules in 19.86 g. of Pb(NO₃)₂. [Pb = 207, N = 14, O = 16]

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Calculate the mass of an atom of lead [Pb = 202].

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Calculate the gram-atoms in 88.75 g of chlorine [Cl = 35.5]

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Calculate the number of hydrogen atoms in 0.25 mole of H₂SO₄.

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Chemistry

Calculate the number of molecules in 1½ litres of water. [density of water 1.0 g./cc. ∴ mass of water = volume × density]

Mole Concept

Related Questions

Calculate the number of moles and molecules in 19.86 g. of Pb(NO₃)₂. [Pb = 207, N = 14, O = 16]

Calculate the mass of an atom of lead [Pb = 202].

Calculate the gram-atoms in 88.75 g of chlorine [Cl = 35.5]

Calculate the number of hydrogen atoms in 0.25 mole of H₂SO₄.

Chemistry

Calculate the number of molecules in 1½ litres of water. [density of water 1.0 g./cc. ∴ mass of water = volume × density]

Mole Concept

Related Questions

Calculate the number of moles and molecules in 19.86 g. of Pb(NO3)2. [Pb = 207, N = 14, O = 16]

Calculate the mass of an atom of lead [Pb = 202].

Calculate the gram-atoms in 88.75 g of chlorine [Cl = 35.5]

Calculate the number of hydrogen atoms in 0.25 mole of H2SO4.

Calculate the number of moles and molecules in 19.86 g. of Pb(NO₃)₂. [Pb = 207, N = 14, O = 16]

Calculate the number of hydrogen atoms in 0.25 mole of H₂SO₄.