A saline solution with a mass of 400 g has 30 g of NaCl dissolved in it. What is the mass/mass percent concentration of the solution?
(g solute/g solution)*100 = % mass/mass
@DrBoB222 30 / 400 * 100
0,75% ??
To find the mass/mass percent concentration of a solution, you need to divide the mass of the solute by the mass of the solution and multiply by 100%.
Given:
Mass of the solute (NaCl) = 30 g
Mass of the solution = 400 g
Mass/mass percent concentration = (Mass of solute / Mass of solution) * 100%
Substituting the given values:
Mass/mass percent concentration = (30 g / 400 g) * 100%
Mass/mass percent concentration = (0.075) * 100%
Mass/mass percent concentration = 7.5%
Therefore, the mass/mass percent concentration of the saline solution is 7.5%.
To calculate the mass/mass percent concentration of a solution, you need to divide the mass of the solute (NaCl) by the mass of the solution and then multiply by 100.
Here's how you can calculate it step by step:
1. Determine the mass of the solute (NaCl): Given that the solution has 30 g of NaCl dissolved in it, the mass of the solute is 30 g.
2. Determine the mass of the solution: Given that the solution has a total mass of 400 g, the mass of the solution is 400 g.
3. Calculate the mass/mass percent concentration: Divide the mass of the solute by the mass of the solution and then multiply by 100. In this case, it would be (30 g / 400 g) x 100.
Mass/mass percent concentration = (30 g / 400 g) x 100
4. Calculate the value: Simplify the calculation to find the mass/mass percent concentration. In this case, it would be (0.075) x 100, which equals 7.5%.
Therefore, the mass/mass percent concentration of the solution is 7.5%.