4g equimolar mixture of NaOH and Na2CO3 contains x g of NaOH and y g of Na2CO3. The value of x is ____________ g. (Nearest integer)
Answer (integer)
1
Solution
Mass of NaOH = x<br><br>Moles of NaOH = ${x \over {40}}$<br><br>Mass of Na<sub>2</sub>CO<sub>3</sub> = y<br><br>Moles of Na<sub>2</sub>CO<sub>3</sub> = ${y \over {106}}$<br><br>${x \over {40}} = {y \over {106}}$<br><br>x + y = 4<br><br>x = 1.1, y = 2.9<br><br>x = 1.1 $\approx$ 1 (nearest integer)
About this question
Subject: Chemistry · Chapter: Some Basic Concepts of Chemistry · Topic: Mole Concept
This question is part of PrepWiser's free JEE Main question bank. 163 more solved questions on Some Basic Concepts of Chemistry are available — start with the harder ones if your accuracy is >70%.