The concentration of a 100 mL solution of 10 g of Cu(OH)2 is?
To find the concentration of a solution, we need to know the number of moles of solute (Cu(OH)2) and the volume of the solution.
First, let's find the number of moles of Cu(OH)2:
The molar mass of Cu(OH)2 is calculated by adding the atomic masses of its constituent elements: Cu = 63.55 g/mol, O = 16.00 g/mol, H = 1.01 g/mol. Therefore, the molar mass of Cu(OH)2 is 63.55 + (16.00 × 2) + (1.01 × 2) = 97.03 g/mol.
To find the number of moles, we divide the mass of Cu(OH)2 by its molar mass:
moles of Cu(OH)2 = mass of Cu(OH)2 / molar mass of Cu(OH)2 = 10 g / 97.03 g/mol ≈ 0.103 mol.
Now, let's find the concentration of the solution:
The concentration is defined as the number of moles of solute divided by the volume of the solution.
concentration = moles of Cu(OH)2 / volume of solution = 0.103 mol / 0.1 L = 1.03 mol/L.
Therefore, the concentration of the 100 mL solution of 10 g of Cu(OH)2 is approximately 1.03 mol/L.
To find the concentration of the solution, we need to divide the amount of solute (Cu(OH)2) by the volume of the solution.
Given:
- Amount of solute (Cu(OH)2) = 10 g
- Volume of solution = 100 mL
First, we need to convert the volume from milliliters (mL) to liters (L):
Volume of solution = 100 mL = 100/1000 L = 0.1 L
Next, we can calculate the concentration:
Concentration = Amount of solute / Volume of solution
Concentration = 10 g / 0.1 L
Concentration = 100 g/L
Therefore, the concentration of the 100 mL solution of 10 g of Cu(OH)2 is 100 g/L.
To find the concentration of a solution, we need to determine the amount of solute (in this case, Cu(OH)2) dissolved in a given volume of solution. The concentration is usually expressed in molarity (moles per liter).
To calculate the concentration of the Cu(OH)2 solution, we need to follow these steps:
Step 1: Determine the number of moles of Cu(OH)2
We can use the formula:
Number of moles = mass / molar mass
The molar mass of Cu(OH)2 can be calculated by adding the atomic masses of its constituent elements:
Copper (Cu): 63.55 g/mol
Oxygen (O): 16.00 g/mol (there are 2 oxygen atoms)
Hydrogen (H): 1.01 g/mol (there are 2 hydrogen atoms)
Molar mass of Cu(OH)2 = (63.55 g/mol) + (2 * (1.01 g/mol)) + (2 * (16.00 g/mol)) = 97.55 g/mol
Now, let's calculate the number of moles of Cu(OH)2:
Number of moles = 10 g / 97.55 g/mol = 0.1023 mol
Step 2: Calculate the concentration (molarity)
Molarity (M) is defined as moles of solute per liter of solution.
Since we have a 100 mL solution (0.1 L), the concentration can be calculated as follows:
Concentration (M) = moles of solute / volume of solution
Concentration (M) = 0.1023 mol / 0.1 L = 1.02 M
So, the concentration of the 100 mL solution of 10 g of Cu(OH)2 is 1.02 M.