1.520 g of hydroxide of a metal on ignition gave 0.995 g of oxide

1520 G Of Hydroxide Of A Metal On Ignition Gave Chemistry Question1520 G Of Hydroxide Of A Metal On Ignition Gave Chemistry Question

1.520 g of hydroxide of a metal on ignition gave 0.995 g of oxide. The equivalent weight of metal is

Options

(a) 1.52
(b) 0.995
(c) 190
(d) 9

Correct Answer:

9

Explanation:

One equivalent of the metal reacts with one mole of hydroxide, i.e., 17g

Similarly, one equivalent of the metal reacts with 1/2 mole oxygen atoms, i.e., 8g of oxygen atoms.

Let E be the equivalent mass of the metal. And let x be the number of equivalents of metal hydroxide ignited.

Therefore,

x(E+17) = 1.520g and

x(E+8) = 0.995
Eliminating x, we get E=9.06g.

AddThis Website Tools
admin:

Related Questions

  1. The method not used in metallurgy to refine the impure metal is
  2. Which one of the following is present as an active ingredient in bleaching
  3. When x g of magnesium burnt with oxygen what is left
  4. Which of the following does not contain aluminium
  5. A real gas most closely approaches the behaviour of an ideal gas at