What mass of solute is dissolved in 250.ml of 4.00%m/v solution. I am confused what to do.in response to question 2 of my other question it asking for volume of the solute.
4% m/v means 4g solute/100 mL solution. So in 250 mL you would have 4 x 250/100 = ?
Or another way is
(x/250 mL)*100 = 4%
To find the mass of solute dissolved in a given volume of solution, you'll need to use the formula for calculating mass/volume percent concentration.
Mass/volume percent (m/v) is defined as the mass of solute (in grams) per volume of solution (in milliliters), multiplied by 100.
Here's how you can solve the problem:
Step 1: Start with the information given:
- Volume of the solution (V) = 250 mL
- Mass/volume percent concentration (m/v) = 4.00%
Step 2: Convert the given volume from milliliters (mL) to liters (L):
- 1 L = 1000 mL
- Therefore, 250 mL = 250/1000 L = 0.25 L
Step 3: Determine the mass of solute using the mass/volume percent equation:
- 4.00% m/v = (mass of solute / volume of solution) x 100
- Rearranging the equation to solve for the mass of solute: mass of solute = (mass/volume percent x volume of solution) / 100
Step 4: Plug in the values into the equation:
- mass of solute = (4.00 x 0.25) / 100
Step 5: Calculate the mass of solute:
- mass of solute = 0.01 g
Therefore, 0.01 grams of solute is dissolved in 250 mL of a 4.00% m/v solution.