Determine the number of molecules in a drop of water which weighs 0.09 g.

Question

KnowledgeBoat · Accepted Answer

Molecular wt. of any substance contain 6.022 × 10²³ molecules. Mass of 1 mole of water is 2H + O = 2 + 16 = 18 g 18 g of H₂O contains 6.022 × 10²³ molecules 0.09 g of H₂O contains = 3.01 × 10²¹ molecules

Chemistry

Determine the number of molecules in a drop of water which weighs 0.09 g.

Mole Concept

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The molecular formula for elemental sulphur is S₈. In a sample of 5.12 g of sulphur:
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Chemistry

Determine the number of molecules in a drop of water which weighs 0.09 g.

Mole Concept

Related Questions

(a) What do you understand by the statement that 'vapour density of carbon dioxide is 22'?(b) Atomic mass of Chlorine is 35.5. What is it's vapour density?

What is the mass of 56 cm3 of carbon monoxide at S.T.P.?(C = 12, O = 16)

The molecular formula for elemental sulphur is S8. In a sample of 5.12 g of sulphur:(a) How many moles of sulphur are present?(b) How many molecules and atoms are present?

If phosphorus is considered to contain P4 molecules, then calculate the number of moles in 100 g of phosphorus?

(a) What do you understand by the statement that 'vapour density of carbon dioxide is 22'?
(b) Atomic mass of Chlorine is 35.5. What is it's vapour density?

What is the mass of 56 cm³ of carbon monoxide at S.T.P.?
(C = 12, O = 16)

The molecular formula for elemental sulphur is S₈. In a sample of 5.12 g of sulphur:
(a) How many moles of sulphur are present?
(b) How many molecules and atoms are present?

If phosphorus is considered to contain P₄ molecules, then calculate the number of moles in 100 g of phosphorus?