Question

1. Calculate the molar mass of Sulphuric acid (H2, SO4) and glucose (C6H12,06)​

Answer 1

Explanation:

Molecular mass of glucose

=6×12+12×1+6×16=72+12+96=180 g

Molecular mass of dulphuric acid

2×1+1×32+4×16=2+32+64=98 g

Answer 2

98 g and 180 g.

Explanation:

Molar mass of sulphuric acid (H2SO4):

⇒ 2(atomic mass of hydrogen) + (atomic mass of Sulphur) + 4(atomic mass of oxygen)

⇒ 2 × 1 + 32 + 4 × 16

⇒ 2 + 32 + 64

⇒ 98 u

Thus, the molar mass of H2SO4 is 98 u.

Molar mass of glucose (C6H12O6):

⇒ 6(atomic mass of carbon) + 12(atomic mass of hydrogen) + 6(atomic mass of oxygen)

⇒ 6 × 12 + 12 × 1 + 6 × 16

⇒ 72 + 12 + 96

⇒ 108 u

Thus, the molar mass of C6H12O6 is 108 u

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