Make up a 500mL solution of 4.8M solution HCl (HCl gmw= 36.5g)
How many mols do you want? That is M x L = 0.500 x 4.8 = ?
grams = mols x molar mass. That will give you grams HCl to use.
2.4 g
To make a 500mL solution of 4.8M HCl, we need to calculate the amount of HCl required and then dilute it to the desired volume. Here's how you can do it step by step:
Step 1: Determine the amount of HCl required in grams.
The molecular weight of HCl is 36.5g/mol. As we need a 4.8M solution, we can calculate the number of moles needed using the formula:
moles = Molarity * Volume(in L)
moles = 4.8 mol/L * 0.5 L = 2.4 moles
To find the mass in grams:
mass = moles * molecular weight
mass = 2.4 moles * 36.5 g/mol = 87.6 grams
Therefore, we need 87.6 grams of HCl.
Step 2: Dissolve the calculated mass of HCl in distilled water and then dilute to the desired volume.
To dissolve the HCl, you can follow these steps:
a. Take a container.
b. Add approximately 300 mL of distilled water.
c. Carefully add the calculated mass of HCl (87.6 grams) to the container while stirring gently.
d. Once the HCl is dissolved, transfer the solution to a 500 mL volumetric flask using a funnel.
e. Rinse the container with distilled water and add the rinsed water to the volumetric flask to reach the 500 mL mark.
f. Cap the flask and thoroughly mix the solution by shaking it gently.
Now, you have a 500mL solution of 4.8M HCl. Remember, when working with strong acids like HCl, always handle them with caution and wear appropriate protective equipment.