Fill in the Blank

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One gram atom of an element contains ______ atoms.

Fill in the Blanks

One gram atom of an element contains quantity of element which weights equal to its gram atomic mass atoms.

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Chapter 5: Mole Concept and Stoichiometry - Exercise 1 [Page 115]

Chapter 5 Mole Concept and Stoichiometry
Exercise 1 | Q 14.3 | Page 115

Calculate the molar mass of the following substance:

Ethyne, C₂H₂

Calculate the molar mass of the following substance:

Hydrochloric acid, HCl

Fill in the following blanks :

60 g of carbon element are .............. moles of carbon atoms.

The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement.

What do you understand by the term mole? How many elementary units are in one mole of a substance?

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.

Find the number of moles in 10 g of CaCO₃.

Calculate the mass of 0.1 mole of the following:

Na₂SO₄.10H₂O

(Ca = 40, Na = 23, Mg = 24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)

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

Fill in the missing data in the Table