Question

How would you distinguish between baking powder and washing soda by heating? ( It is baking powder, not baking soda)

Answer 1

Answer:

On heating baking soda , CO2 gas is given out and turn lime water milkey while on heating.

On heating washing Soda , 10H2O water of crystallization is given out and salt becomes anhydrous.

Answer 2

$Answer:</p><p></p><p>Baking powder will release carbon dioxide whereas washing soda will not.</p><p></p><p>Explanation:</p><p></p><p>Upon heating baking powder (NaHCO_{3}NaHCO </p><p>3</p><p></p><p> ), carbon dioxide is evolved, which extinguishes a lighted splint. The other two products are sodium carbonate and water.</p><p>2NaHCO_{3} +2NaHCO </p><p>3</p><p></p><p> + Δ→Na_{2}CO_{3}+CO_{2}+H_{2}ONa </p><p>2</p><p></p><p> CO </p><p>3</p><p></p><p> +CO </p><p>2</p><p></p><p> +H </p><p>2</p><p></p><p> O</p><p></p><p>Upon heating washing soda (NaHCO_{3}.10H_{2}ONaHCO </p><p>3</p><p></p><p> .10H </p><p>2</p><p></p><p> O ), there is no production of carbon dioxide, instead, water is lost.</p><p>NaHCO_{3}.10H_{2}ONaHCO </p><p>3</p><p></p><p> .10H </p><p>2</p><p></p><p> O +Δ→NaHCO_{3}NaHCO </p><p>3</p><p></p><p> + 10H_{2}O10H </p><p>2</p><p></p><p> O</p><p></p><p>Even at high temperatures, NaHCO_{3}.10H_{2}ONaHCO </p><p>3</p><p></p><p> .10H </p><p>2</p><p></p><p> O does not give out carbon dioxide.$