How do I calculate this? How many grams of CaCl2 is in 500 mL 0.1 M solution of CaCl2

How many mols do you want? That's mols = M x L = 0.1M x 0.500L = ?

Then mols = grams/molar mass. You know mols and molar mass; solve for grams.

To calculate the number of grams of CaCl2 in a 0.1 M solution, you’ll need to follow these steps:

1. Determine the molar mass of CaCl2.
2. Convert the given volume into liters.
3. Use the formula: grams = moles × molar mass.

Let's go through each step in detail:

Step 1: Determine the molar mass of CaCl2.
The molar mass of CaCl2 can be calculated by adding up the atomic masses of its components: calcium (Ca) and chlorine (Cl). The atomic mass of calcium is 40.08 g/mol, and the atomic mass of chlorine is 35.45 g/mol. Since there are two chlorine atoms in CaCl2, we’ll multiply the atomic mass of chlorine by 2.

Molar mass of CaCl2 = (1 × atomic mass of calcium) + (2 × atomic mass of chlorine)
= (1 × 40.08 g/mol) + (2 × 35.45 g/mol)
= 40.08 g/mol + 70.90 g/mol
= 110.98 g/mol

Therefore, the molar mass of CaCl2 is 110.98 g/mol.

Step 2: Convert the given volume into liters.
The given volume is 500 mL, which needs to be converted into liters. Since 1 liter (L) is equal to 1000 milliliters (mL), we can convert 500 mL to liters by dividing it by 1000.

Volume in liters (L) = 500 mL ÷ 1000
= 0.5 L

Therefore, the volume is 0.5 L.

Step 3: Use the formula: grams = moles × molar mass.
Given that the solution is 0.1 M, which means that it contains 0.1 moles of CaCl2 per liter (L).

First, calculate the number of moles of CaCl2 in the solution:
Moles = (molarity) × (volume in liters)
= 0.1 × 0.5
= 0.05 moles

Next, calculate the grams of CaCl2 using the formula:
Grams = moles × molar mass
= 0.05 moles × 110.98 g/mol
= 5.549 grams

Therefore, there are approximately 5.549 grams of CaCl2 in a 500 mL 0.1 M solution of CaCl2.

To calculate the number of grams of CaCl2 in a given solution, you will need to follow a few steps:

1. Determine the molar mass of CaCl2:
- Ca has a molar mass of approximately 40.08 g/mol.
- Cl has a molar mass of approximately 35.45 g/mol.
- CaCl2 consists of one Ca atom and two Cl atoms, so the molar mass is:
1 * 40.08 + 2 * 35.45 = 110.98 g/mol.

2. Calculate the number of moles of CaCl2 in the solution:
- You are given the concentration as 0.1 M, which means there are 0.1 moles of CaCl2 per liter of solution.
- Since you have 500 mL of the solution (0.5 liters), you can calculate the number of moles:
0.1 mol/L * 0.5 L = 0.05 moles.

3. Convert moles to grams:
- Use the molar mass of CaCl2 to convert moles to grams:
0.05 moles * 110.98 g/mol = 5.549 grams.

Therefore, there are approximately 5.549 grams of CaCl2 in 500 mL of a 0.1 M solution of CaCl2.