hydrochloric acid to make 5.00L 0.200 mol/L solution

To prepare a 5.00L 0.200 mol/L solution of hydrochloric acid, you would need to follow these steps:

1. Calculate the amount of hydrochloric acid needed: The molarity (M) is defined as the number of moles of solute per liter of solution. So, to find the number of moles needed, multiply the desired volume by the desired concentration. Moles = Molarity x Volume = 0.200 mol/L x 5.00 L = 1.00 mol

2. Convert moles to grams: The molar mass of hydrochloric acid (HCl) is approximately 36.5 g/mol. So, to find the mass of HCl needed, multiply the number of moles by the molar mass. Mass = Moles x Molar mass = 1.00 mol x 36.5 g/mol = 36.5 g

3. Measure the hydrochloric acid: Weigh out 36.5 g of hydrochloric acid.

4. Dilute the solution: Add the hydrochloric acid to approximately 4 liters of distilled water in a 5-liter volumetric flask or suitable container. Stir or shake the solution until the acid is fully dissolved.

5. Adjust the volume: Add more distilled water to the solution until the total volume is 5.00 liters.

6. Safety precautions: Always add acid to water, not water to acid, to prevent the solution from splashing. Wear appropriate personal protective equipment, including gloves and safety glasses.

Please note that concentrated hydrochloric acid is a hazardous material and should be handled with care. Always follow your institution's safety procedures when handling hazardous materials.