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प्रश्न
Define or explain the term:
Mole
उत्तर
Mole is the amount of a substance containing elementary particles like atoms, molecules or ions in 12 g of carbon - 12.
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संबंधित प्रश्न
Calculate the molar mass of the following substance:
Ethyne, C2H2
What is the mass of 1 mole of nitrogen atoms?
What is the mass of 10 moles of sodium sulphite (Na2SO3)?
What is the mass of 5 moles of sodium carbonate (Na2CO3) ?
(Atomic masses : Na = 23 u ; C = 12 u ; O = 16 u)
Which of the following pair of elements represents a mole ratio of 1 : 1 ?
The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement.
Two oxides of a metal (M) have 20.12% and 11.19% oxygen. The formula of the first oxide is MO. Determine the formula of the second oxide.
The molecular formula for elemental sulphur is S8.In a sample of 5.12 g of sulphur:
How many molecules and atoms are present?
N2 + 3H2 → 2NH3
(The atomic mass of nitrogen is 14, and that of hydrogen is 1)
1 mole of nitrogen (______ g) +
3 moles of hydrogen (______ g) →
2 moles of ammonia (______ g)
How many grams are there in the following?
3 moles of chlorine molecule, Cl2.
