how you prepare a solution of 600ml of 0.085M K2so4
You want how many mols? That's M x L = mols. Then
mol = g/molar mass. YOu know mols and molar mass, solve for grams.You may have a problem finding a 600 mL volumetric flask.
To prepare a solution of 600 mL of 0.085 M K2SO4, we need to determine the amount of K2SO4 needed and then dissolve it in water. Here are the step-by-step instructions:
1. Start by calculating the amount of K2SO4 needed using the given concentration and volume:
Amount of K2SO4 = Concentration x Volume
Amount of K2SO4 = 0.085 M x 0.600 L
2. Convert the volume from liters to milliliters:
Volume (in mL) = 0.600 L x 1000 mL/L
3. Multiply the concentration by the volume to find the amount of K2SO4 in moles:
Moles of K2SO4 = 0.085 M x 600 mL / 1000 mL/L
4. Calculate the molar mass of K2SO4 (Potassium sulfate):
K2SO4 = (2 x Atomic mass of K) + Atomic mass of S + (4 x Atomic mass of O)
5. Weigh out the amount of K2SO4 in grams using the molar mass:
Mass of K2SO4 = Moles of K2SO4 x Molar mass of K2SO4
6. Transfer the weighed K2SO4 to a container and add enough water to bring the total volume to 600 mL. Stir until the K2SO4 is completely dissolved.
7. Make sure to label the container indicating the concentration and contents of the solution (e.g., 0.085 M K2SO4, 600 mL).
Note: Always wear appropriate personal protective equipment (PPE) and follow safety guidelines when handling chemicals.
To prepare a solution of 600ml of 0.085M K2SO4, you will need to follow these steps:
Step 1: Determine the amount of K2SO4 needed.
To calculate the amount of K2SO4 required, you need to use the formula: Moles = Concentration x Volume (in liters).
First, convert the given volume from milliliters to liters:
600 ml = 600/1000 = 0.6 liters.
Next, substitute the given concentration and volume into the formula:
Moles = 0.085 M x 0.6 L = 0.051 moles.
Step 2: Calculate the mass of K2SO4 needed.
To calculate the mass of K2SO4, you will need to use its molar mass. The molar mass of K2SO4 is:
K (39.10 g/mol) x 2 + S (32.07 g/mol) + 4O (16.00 g/mol) = 174.26 g/mol.
Multiply the number of moles (0.051 moles) by the molar mass (174.26 g/mol):
Mass = 0.051 moles x 174.26 g/mol = 8.878 g.
So, you will need approximately 8.878 grams of K2SO4.
Step 3: Dissolve K2SO4 in water.
Once you've obtained the required mass of K2SO4, add it to a clean and dry container. Then, slowly add distilled or deionized water to the container while stirring until all the K2SO4 has dissolved. In this case, add water to reach a final volume of 600 ml.
Step 4: Mix and verify concentration.
After the K2SO4 is completely dissolved and the final volume of the solution is 600 ml, mix it thoroughly to ensure the consistency of the solution. You can use a stirrer or shake it gently.
To verify the concentration, you can use a pH meter, a spectrophotometer, or titration methods depending on the intended use of the solution.
Note: It is essential to follow proper laboratory safety guidelines and wear appropriate personal protective equipment while handling chemicals.