MHT CET202615 April 2026Evening ShiftChemistrySome Basic Concepts of ChemistryActual
Find the mass of sodium carbonate in grams to form 100 ml 0.1 M solution in water? ( Molar mass of Na ₂ CO ₃ = 106 g/mol)
Options
- A1.06 g
- B3.18 g
- C2.12 g
- D4.16 g
Correct answer
A. 1.06 g
Step-by-step solution
Molarity is given by the formula: M = n V (in L) Substituting the given values: 0.1 = n 0.1 n = 0.01 moles Mass of Na ₂ CO ₃ is calculated as: w = n Molar mass w = 0.01 106 = 1.06 g Answer: 1.06 g