How many grams of HCl are present in 0.1 mole of it?

संख्यात्मक

1 mole of HCI has weight = 1 + 35.5 = 36·5 g

∴ 0.1 mole of HCl has mass = 0.1 x 36.5

= 3.65 g

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पाठ 5: Mole concept and Stoichiometry - EXERCISE-5B [पृष्ठ ८४]

पाठ 5 Mole concept and Stoichiometry
EXERCISE-5B | Q 9. (b) | पृष्ठ ८४

How many moles of O2 are there in 1.20 × 1022 oxygen molecules ?

Define the term Relative atomic mass.

Correct the following statement :
Equal masses of all gases under identical conditions contain the same number of molecules.

Explain the term:

Molar volume

Find the number of moles in 10 g of CaCO₃.

Calculate the mass of 0.1 mole of the following:

CaCO₃

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

Which of the following weighs the least?

Calculate the number of moles in 7g of nitrogen.

The number of atoms present in 0.1 mole of P₄ (at. mass = 31) is ______.