Calculating Mass by Volume Percentage Concentration
This question requires calculating the concentration of a solution in terms of mass by volume percentage. We are given the mass of the solute and the total volume of the solution.
Given Information
- Mass of solute = 5 g
- Volume of solution = 250 mL
Formula for Mass by Volume Percentage
The mass by volume percentage concentration is calculated using the following formula:
\( \text{Concentration (mass by volume } \%) = \frac{\text{Mass of solute (g)}}{\text{Volume of solution (mL)}} \times 100 \)
Step-by-Step Calculation
- Substitute the values: Plug the given mass of solute and volume of solution into the formula.
\( \text{Concentration} = \frac{5 \text{ g}}{250 \text{ mL}} \times 100 \)
- Simplify the fraction: Divide the mass of solute by the volume of the solution.
\( \frac{5}{250} = \frac{1}{50} \)
- Calculate the percentage: Multiply the result by 100.
\( \text{Concentration} = \frac{1}{50} \times 100 = 2 \)
Result
The calculated concentration is 2% (mass by volume).
Important Questions from Solutions
Sugar is a _____ in a sugar solution.
A. Solvent
B. Solute
C. Colloid
D. Suspension
When a solid body is partially or completely immersed in a fluid, the fluid exerts an upward force on the body. The magnitude of the force is equal to
(1) the mass of the body
(2) the weight of the displaced fluid by the body
Calculate the molar mass of copper(II) sulfate pentahydrate, $CuSO_4 \cdot 5H_2O$.
(Atomic masses: $Cu = 63.55 \text{ g/mol}$, $S = 32.07 \text{ g/mol}$, $O = 16.00 \text{ g/mol}$, $H = 1.01 \text{ g/mol}$)The pH value of 1 × 10 -8 (M) HCl is:
The molar conductivity of 0.01 M acetic acid is 10 S cm2 mol−1. What is the dissociation constant of acetic acid? Choose the correct option.
\(\left[\begin{array}{l}\Lambda_{\text{H}^{+}}^{\circ}=345 ~\text{S}~ \text{cm}^{2}\text{mol}^{-1} \\ \Lambda_{\text{CH}_{3}\text{COO}^{-}}^{\circ}=55~\text{S cm}^{2} \text{mol}^{-1}\end{array}\right]\)
