Question

How much CaCO3 is to be heated to generate sufficient CO2 and O as to convert 1.6 g of Na2CO3 into NaHCO3 completely ? [ Na = 23 , C= 12 , O = 16 ]​

Answer 1

Answer:

See below.

Explanation:

Consider the reaction below,

$Na_{2}CO_{3}+CO_{2}+H_{2}O\rightarrow 2NaHCO_{3}$

So, we require 44 grams of CO2 to convert 106 grams of Na2CO3. So, for 1.6 grams of Na2CO3, we'll require,

$\dfrac {1.6\times 44}{106}=0.664g$

Consider the below reaction,

$CaCO_{3}\rightarrow CaO+CO_{2}$

100 grams of CaCO3 decomposes to form 44 grams of CO2. So, 0.664 grams of CO2 will be formed by,

$\dfrac {0.664\times 100}{44} = 1.5$

So, we'll require 1.5 grams of CaCO3.