Complete the following calculations and type your answers into the boxes. In a volumetric flask, 4 g of NaCl is dissolved in \( 0,5 \mathrm{dm}^{3} \) of water. 1. Calculate the amount of NaCl dissolved in water. mol of NaCl is dissolved in water. 2 Calculate the concentration of NaCl in the solution. The solution has a NaCl concentration of \( \mathrm{mol} \cdot \mathrm{dm}^{-3} \)

To calculate the amount of NaCl dissolved in water, we need to know the molar mass of NaCl. The molar mass of NaCl is 58.44 g/mol. Given: - Mass of NaCl = 4 g - Volume of water = 0.5 dm³ 1. Calculate the amount of NaCl dissolved in water: \[ \text{Amount of NaCl} = \frac{\text{Mass of NaCl}}{\text{Molar mass of NaCl}} \] 2. Calculate the concentration of NaCl in the solution: \[ \text{Concentration of NaCl} = \frac{\text{Amount of NaCl}}{\text{Volume of solution}} \] Let's calculate the amount of NaCl dissolved in water and the concentration of NaCl in the solution. Calculate the value by following steps: - step0: Calculate: \(\frac{4}{58.44}\) - step1: Convert the expressions: \(\frac{4}{\frac{1461}{25}}\) - step2: Multiply by the reciprocal: \(4\times \frac{25}{1461}\) - step3: Multiply: \(\frac{4\times 25}{1461}\) - step4: Multiply: \(\frac{100}{1461}\) The amount of NaCl dissolved in water is approximately 0.068 mol. Now, let's calculate the concentration of NaCl in the solution. Calculate the value by following steps: - step0: Calculate: \(\frac{0.068}{0.5}\) - step1: Convert the expressions: \(\frac{\frac{17}{250}}{\frac{1}{2}}\) - step2: Multiply by the reciprocal: \(\frac{17}{250}\times 2\) - step3: Reduce the numbers: \(\frac{17}{125}\times 1\) - step4: Multiply: \(\frac{17}{125}\) The concentration of NaCl in the solution is 0.136 mol/dm³.