How do i determine what is the concerntration, mass and volume of a solution in an equation / question like this ?

Question

what is the mass of a solid present in 50 ml of a 40% solution? give the mass in g

Answer 1

To determine the concentration, mass, and volume of a solution in an equation or question like the one you provided, you will need to use the following information:

1. Concentration: This is a measure of the amount of solute (the substance being dissolved) in a given amount of solvent (the substance in which the solute is being dissolved). Concentration is usually expressed as a percentage, molarity (moles of solute per liter of solution), molality (moles of solute per kilogram of solvent), or parts per million (ppm).
2. Mass: This is the measure of the amount of matter in an object. In chemistry, mass is often measured in grams (g) or kilograms (kg).
3. Volume: This is the measure of the amount of space occupied by an object. In chemistry, volume is often measured in milliliters (mL) or liters (L).

To solve the problem you provided, you will need to use the following steps:

1. Determine the concentration of the solution. In this case, the solution is 40% solute, so the concentration is 40%.
2. Determine the volume of the solution. In this case, the volume of the solution is 50 mL.
3. Determine the mass of the solute. To do this, you will need to use the equation: mass = concentration * volume. Plugging in the values from the problem, we get: mass = (40%) * (50 mL) = 20 mL.
4. Convert the mass of the solute from milliliters to grams. To do this, you will need to know the density of the solute. If the density of the solute is known, you can use the equation: mass (g) = mass (mL) * density (g/mL). If the density is not known, you will need to look it up in a reference or determine it through experimentation.