Question 1 of 36beginner🔧 ApplyNumerical3 marks

Calculate the molar mass of the following: (i) H₂O (ii) CO₂ (iii) CH₄

(i)
Answer

18.02 g mol−1^{-1}

(ii)
Answer

44.01 g mol−1^{-1}

(iii)
Answer

16.043 g mol−1^{-1}

Explanation

The molar mass of a substance is the mass of one mole of that substance, numerically equal to its molecular mass expressed in unified atomic mass units (u). It is calculated by adding the atomic masses of all the atoms present in the molecule.

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