how much copper sulfate do i need to make a solution of 100ml of 1M copper sulfate?
How many mols do you need? That's M x L = mols.
Then mols = grams/molar mass. You have mols and molar mass, solve for grams.
To determine the amount of copper sulfate you need to make a 1M solution of 100ml, you need to understand the concept of molarity (M).
Molarity is a measure of the concentration of a solute in a solution. Specifically, it represents the number of moles of solute per liter of solution.
To calculate the amount of copper sulfate needed, you can follow these steps:
1. Determine the molar mass of copper sulfate (CuSO4) by adding up the atomic masses of each element in its chemical formula.
- Copper (Cu): 63.55 g/mol
- Sulfur (S): 32.07 g/mol
- Oxygen (O) (4 atoms): 16.00 g/mol
The molar mass of CuSO4 is 63.55 g/mol + 32.07 g/mol + (16.00 g/mol x 4) = 159.61 g/mol.
2. Calculate the number of moles of copper sulfate needed.
Since you want a 1M solution of 100ml, you need 1 mole of copper sulfate per liter of solution.
- Moles = Molarity x Volume (in liters)
- Moles = 1M x 0.1L (as 100ml is equal to 0.1L)
- Moles = 0.1 moles
3. Calculate the mass of copper sulfate needed by multiplying the number of moles by the molar mass.
- Mass = Moles x Molar mass
- Mass = 0.1 mol x 159.61 g/mol
- Mass = 15.961 g
Therefore, you need approximately 15.961 grams of copper sulfate to make a 1M solution of 100ml.