Answer: The mass of given piece of potassium is 25.68 g
Explanation:
Density of a substance is defined as the ratio of its mass and volume. The equation used to determine density follows:
[tex]\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}[/tex]
We are given:
Density of potassium = [tex]0.856g/cm^3[/tex]
Volume of potassium = [tex]30cm^3[/tex]
Putting values in above equation, we get:
[tex]0.856g/cm^3=\frac{\text{Mass of potassium}}{30cm^3}\\\\\text{Mass of potassium}=(0.856g/cm^3\times 30cm^3)=25.68g[/tex]
Hence, the mass of given piece of potassium is 25.68 g
