Mass = volume x density
volume = πr²
since Diameter = 2.5 cm
then radius = 1.25cm
∴ volume = π x (1.25cm)³
≈ 6.1359 cm³
Thus mass = 6.1359 cm³ x 11.34 g / cm³
= 69.58 g
Answer:
200 g/L
Explanation:
The concentration of a solution (also called molarity) can be calculated with the formula:

where
m is the mass of the solute
V is the volume of the solution
For the solution in this problem we have:
m = 50g is the mass of the solute
V = 250 mL = 0.250 L is the volume of the solution
Therefore, the concentration of the solution is:

Answer:
Explanation:
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