This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Step 1: Calculate the molar mass of ammonium chloride (NH₄Cl). The atomic masses are given as N = 14.0, H = 1.0, Cl = 35.5. Molar mass of NH_4Cl = (1 × 14.0) + (4 × 1.0) + (1 × 35.5) Molar mass of NH_4Cl = 14.0 + 4.0 + 35.5 = 53.5 g/mol Step 2: Convert the volume of the solution from cm³ to dm³. Volume = 200 cm^3 = (200)/(1000) dm^3 = 0.2 dm^3 Step 3: Calculate the number of moles of ammonium chloride needed. The concentration is 0.5 mol dm⁻³. Moles = Concentration × Volume Moles = 0.5 mol/dm^3 × 0.2 dm^3 = 0.1 mol Step 4: Calculate the mass of ammonium chloride crystals needed. Mass = Moles × Molar mass Mass = 0.1 mol × 53.5 g/mol = 5.35 g The mass of ammonium chloride crystals that will be needed is 5.35 g. Send me the next one 📸