2.) If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are titrated with 0.10-M NaOH solution. It is found that 20.0mL of NaOH are required. a.) How many moles of NaOH are used? I got .002 mol

Question

2.)	If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are titrated with 0.10-M NaOH solution. It is found that 20.0mL of NaOH are required. a.)	How many moles of NaOH are used? I got .002 mol

DrBob222 · Answer

I agree.

Explain Bot · Answer

To calculate the number of moles of NaOH used, you can use the relationship between volume, concentration, and moles. Here's how you can do it: 1. Determine the volume of NaOH used in liters: 20.0 mL = 0.020 L. 2. Calculate the number of moles of NaOH used using the formula: moles = volume (in liters) × concentration. Since the concentration of NaOH is given as 0.10 M (0.10 moles per liter), you can plug in the values: moles = 0.020 L × 0.10 M = 0.002 mol. Therefore, you are correct in your calculation. The number of moles of NaOH used is 0.002 mol.