ICSE 1998 : SCIENCE Paper 2 (Chemistry) - Question 4(b) Answer the following.

SCIENCE
Paper 2 (Chemistry) - 1998
(One hour and a half)

Question 4
(b) Ammonia burns in oxygen and the combustion that takes place in the presence of a catalyst; may be represented by:

2NH₃ + 2½ O₂ → 2NO + 3H₂O

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57.
(i) What mass of steam is produced when 1.5 g of nitrogen monoxide is formed?

58.
(ii) What volume of oxygen, at S.T.P. is required to form 10 moles of products?
[H = 1; N = 14; O = 16; 1 mole of a gas occupies 22.4 dm³ (22.4 litre) at S .T.P.]

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