Test Index

WAEC Chemistry 2012 Paper

Question : 15

Total: 44

_{3(s)}

_{(aq)}

_{2(aq)}

_2

_{(l)}

_{2(g)}

_2

_{3(s)}

_{(aq)}

{}_3 = 100; CaCI_2

= 111]

Solution:

CaCO $_{3}$ + 2HCI → CaCI $_{2}$ + H $_{2}$ O + CO $_{2}$

100g CaCO $_{3}$ will produce 111g CaCI $_{2}$

25g CaCO $_{3}$ will produce x ,

x = $\; \frac{25\;x\;111}{100}$

= 27.75 $\approx \text{eq}$ 27.8g

Go to Question:

Prev Question

Next Question