Determine the mass of sulphur (IV) oxide obtained when 91.0g of oxygen reacts completely with sulphur according to the following equation: S(s) + O\(_2\)(g) → SO\(_2\)(g) [S = 32; O = 16]

  • A 123g
  • B 139g
  • C 155g
  • D 182g
waec 2002chemistry

The correct answer is D. 182g

S + O\(_2\) → SO\(_2\).

According to the equation 32g of O\(_2\) produced 64g of SO\(_2\)

therefore 91g of O2 will produce yg of SO2

y = \(\frac{91 * 64}{32}\)

y = 182g of SO\(_2\)

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