What is the minimum volume of 2.6 required to completely dissolve 20.0 of potassium metal?

2.6 what?

20.0 what?

To determine the minimum volume of 2.6 M solution required to completely dissolve 20.0 g of potassium metal, we need to follow a series of steps.

Step 1: Calculate the molar mass of potassium metal (K).
The molar mass of potassium (K) is 39.10 g/mol.

Step 2: Convert the given mass of potassium metal into moles.
Using the molar mass of potassium (K), we can convert the mass of potassium metal to moles.
Moles of K = Mass of K / Molar mass of K
Moles of K = 20.0 g / 39.10 g/mol
Moles of K ≈ 0.511 mol

Step 3: Determine the volume of the 2.6 M potassium solution required to dissolve the calculated moles of potassium.
The number of moles of potassium (K) would be equal to the moles of potassium ions (K+) in the solution. Since the potassium solution is 2.6 M (2.6 mol/L), we can use the following equation:

Moles of K+ = Volume of solution (L) × Molarity of solution (M)

To solve for volume, we rearrange the formula:

Volume of solution (L) = Moles of K+ / Molarity of solution (M)
Volume of solution (L) = 0.511 mol / 2.6 mol/L
Volume of solution (L) ≈ 0.196 L or 196 mL

Therefore, the minimum volume of 2.6 M solution required to completely dissolve 20.0 g of potassium metal is approximately 0.196 liters or 196 milliliters.

To find the minimum volume of 2.6 required to completely dissolve 20.0 grams of potassium metal, you need to calculate the molar mass of potassium, convert the mass of potassium to moles, and then use the molar ratio between potassium and 2.6 to determine the volume.

Step 1: Calculate the molar mass of potassium:
The molar mass of potassium (K) is 39.10 grams/mol.

Step 2: Convert the mass of potassium to moles:
Divide the mass of potassium (20.0 grams) by its molar mass (39.10 grams/mol):
moles of potassium = 20.0 g / 39.10 g/mol

Step 3: Determine the molar ratio between potassium and 2.6:
The balanced chemical equation for the reaction between potassium and 2.6 is required to determine the molar ratio. Assuming it is a 1:1 ratio, 1 mole of potassium reacts with 1 mole of 2.6.

Step 4: Calculate the volume of 2.6 required:
Using the molar ratio from step 3, the volume of 2.6 can be calculated using the formula:
volume of 2.6 = moles of potassium * molar ratio

Finally, plug in the calculated moles of potassium and the molar ratio to find the volume of 2.6 required to completely dissolve 20.0 grams of potassium metal.