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Calculate the number of moles in 3.0115 ...

Calculate the number of moles in `3.0115 xx 10^(23)` atoms of calcium.

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To calculate the number of moles in \(3.0115 \times 10^{23}\) atoms of calcium, we can follow these steps: ### Step 1: Understand the relationship between atoms and moles We know that 1 mole of any substance contains \(6.022 \times 10^{23}\) entities (atoms, molecules, etc.). This number is known as Avogadro's number. ### Step 2: Set up the formula To find the number of moles (\(n\)) from the number of atoms (\(N\)), we can use the formula: \[ ...
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MTG IIT JEE FOUNDATION-ATOMS AND MOLECULES -OLYMPIAD/HOTS CORNER
  1. Calculate the number of moles in 3.0115 xx 10^(23) atoms of calcium.

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  2. A compound, PQ2 has the following arrangement of electrons : The ele...

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  3. How many moles of electrons weigh one kilogram? (Mass of electron =9...

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  4. A sample of MgCO3 contains 3.01 xx 10^(23) Mg^(2+) ions and 3.01 xx 1...

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  5. What mass of hydrogen and oxygen will be produced on complete electrol...

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  6. Ninhydrin having molecular formula C9H6O4, is commonly used by forensi...

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  7. A sample of ascorbic acid (vitamin C) is synthesised in the laboratory...

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  8. The total number of electrons present in 16 g of methane gas is:

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  9. The number of atoms in 0.1 mol of a triatomic gas is:

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  10. The number of particles present in one mole of any substance is equal ...

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  11. Atoms are neither created nor destroyed in a chemical reaction. This p...

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  12. Which of the following statements are correct? (Given : At. wt. of Ca ...

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  13. Elements belonging to different groups of the periodic table are given...

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  14. Which of the following contains maximum number of molecules?

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  15. What is the mass of 12.044 xx 10^(23) number of O(2) molecules?

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  16. If three gases X, Y and Z are arranged in increasing order of their re...

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  17. The maximum number of molecules is present in :

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  18. You are provided with 64 g of solid sulphur in container A and 64 g of...

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  19. Arrange the following in the order of increasing mass (atomic mass: O...

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  20. Valency of sulphur atom in SO(2) is:

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  21. Some rocket engines use a mixture of hydrazine, N(2)H(4) and hydrogen...

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