Answer :
To find the concentration of a solution when a certain amount of salt is dissolved in water, follow these steps:
1. Identify the Mass of Salt and Water:
- Let's assume you have a certain quantity of salt, [tex]\( (Qp) \)[/tex], and it is dissolved in 320 grams of water.
2. Calculate the Total Mass of the Solution:
- The total mass of the solution is the sum of the mass of the salt and the mass of the water.
- This can be written as:
[tex]\[
\text{Total Mass} = \text{Mass of Salt (Qp)} + \text{Mass of Water (320 g)}
\][/tex]
3. Calculate the Concentration of the Solution:
- Concentration tells you how much salt is present in the solution relative to the total mass of the solution. It is often expressed as a percentage.
- The formula for concentration is:
[tex]\[
\text{Concentration (\%)} = \left( \frac{\text{Mass of Salt}}{\text{Total Mass of the Solution}} \right) \times 100
\][/tex]
4. Using the Given Values:
- Assume the quantity of salt [tex]\( (Qp) \)[/tex] is 100 grams. This gives:
- Total mass of solution = [tex]\(100 \, \text{g (salt)} + 320 \, \text{g (water)} = 420 \, \text{g}\)[/tex]
- Concentration = [tex]\( \left( \frac{100}{420} \right) \times 100 \approx 23.81\% \)[/tex]
Therefore, the concentration of the solution is approximately 23.81%. This means that 23.81% of the solution's total mass is made up of salt.
1. Identify the Mass of Salt and Water:
- Let's assume you have a certain quantity of salt, [tex]\( (Qp) \)[/tex], and it is dissolved in 320 grams of water.
2. Calculate the Total Mass of the Solution:
- The total mass of the solution is the sum of the mass of the salt and the mass of the water.
- This can be written as:
[tex]\[
\text{Total Mass} = \text{Mass of Salt (Qp)} + \text{Mass of Water (320 g)}
\][/tex]
3. Calculate the Concentration of the Solution:
- Concentration tells you how much salt is present in the solution relative to the total mass of the solution. It is often expressed as a percentage.
- The formula for concentration is:
[tex]\[
\text{Concentration (\%)} = \left( \frac{\text{Mass of Salt}}{\text{Total Mass of the Solution}} \right) \times 100
\][/tex]
4. Using the Given Values:
- Assume the quantity of salt [tex]\( (Qp) \)[/tex] is 100 grams. This gives:
- Total mass of solution = [tex]\(100 \, \text{g (salt)} + 320 \, \text{g (water)} = 420 \, \text{g}\)[/tex]
- Concentration = [tex]\( \left( \frac{100}{420} \right) \times 100 \approx 23.81\% \)[/tex]
Therefore, the concentration of the solution is approximately 23.81%. This means that 23.81% of the solution's total mass is made up of salt.
