Chemistry Problem Solving: Calculating Molarity of Diluted Solution
What is molarity and how can we calculate it?
Molarity is the amount of a substance in a certain volume of solution, defined as the moles of a solute per liter of solution. To calculate molarity, we can use the formula M1V1 = M2V2, where M1 is the initial molarity, V1 is the initial volume, M2 is the final molarity, and V2 is the final volume.
How can we calculate the molarity of a diluted solution?
Given:
- Volume of water = 45ml
- Volume of K2SO4 = 250ml
- Molarity of K2SO4 = 0.75 M
To Find: Molarity of the diluted solution
Solution:
We can use the formula M1V1 = M2V2. Plugging in the values:
45 * M1 = 250 * 0.75
M1 = 250 * 0.75 / 45
M1 = 4.16 M
Therefore, the molarity of the diluted solution is 4.16 M.
Understanding Molarity and Dilution
Molarity is a crucial concept in chemistry that helps us understand the concentration of a solution. It is important in various aspects of chemical reactions and analyses. When we dilute a solution by adding more solvent, the molarity of the resulting solution changes. This change can be calculated using the formula M1V1 = M2V2, where the subscripts 1 and 2 represent initial and final values, respectively.
In the given problem, we were tasked to find the molarity of a solution after adding water to a K2SO4 solution. By applying the molarity formula, we calculated that the molarity of the diluted solution is 4.16 M. This value indicates the concentration of K2SO4 in the final solution.
It is essential to grasp the concept of molarity and how it influences solution concentration. By mastering these calculations, we can accurately determine the properties and behavior of various chemical systems. Continuous practice and understanding of molarity will enhance your problem-solving skills in chemistry.