How many grams of H2O are present in 0.2 mole of it? - Chemistry

How many grams of H₂O are present in 0.2 mole of it?

संख्यात्मक

1 mole of water weighs = (1 x 2) + 16 = 18 g

∴ 0.2 mole of H₂O has mass = 0.2 x 18 = 3.6 g

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अध्याय 5: Mole concept and Stoichiometry - Exercise 5B [पृष्ठ ८४]

अध्याय 5 Mole concept and Stoichiometry
Exercise 5B | Q 9.3 | पृष्ठ ८४

Which has more number of atoms, 100 grams of sodium or 100 grams of iron (given, atomic mass of Na = 23 u, Fe = 56 u)?

Calculate the molar mass of the following substance:

Sulphur molecule, S₈

Fill in the following blanks :

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

What is meant by ‘a mole of carbon atoms’ ?

Define the term Relative atomic mass.

Calculate the number of particles in 0.1 mole of any substance.

Calculate the mass of 0.1 mole of the following:

(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?

Calculate the number of moles in 7g of nitrogen.

How many grams are there in the following?

4 moles of the phosphorous molecule, P₄