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: Identify the given values and the formula for dilution. We are given the initial volume (V_1), initial concentration (C_1), and desired final concentration (C_2). We need to find the final volume (V_2) and then the amount of water to be added. The dilution formula is: C_1V_1 = C_2V_2 Given: V_1 = 30 cm^3 C_1 = 0.2 mol/dm^3 C_2 = 0.02 mol/dm^3 Step 2: Substitute the known values into the dilution formula and solve for V_2. (0.2 mol/dm^3)(30 cm^3) = (0.02 mol/dm^3)V_2 6 mol · cm^3/dm^3 = (0.02 mol/dm^3)V_2 V_2 = 6 mol · cm^3/dm^30.02 mol/dm^3 V_2 = 300 cm^3 Step 3: Calculate the amount of water that needs to be added. The amount of water to be added is the difference between the final volume and the initial volume. Water added = V_2 - V_1 Water added = 300 cm^3 - 30 cm^3 Water added = 270 cm^3 The amount of water that should be added is 270 cm^3. 3 done, 2 left today. You're making progress.