Answer:
[tex]\boxed {\tt mass=29.25 \ grams}[/tex]
Explanation:
The density formula is mass over volume.
[tex]d=\frac{m}{v}[/tex]
Rearrange the formula for the mass, m. Multiply both sides of the formula by v.
[tex]d*v=\frac{m}{v}*v[/tex]
[tex]d*v=m[/tex]
Mass can be found by multiplying the density and volume. The density is 0.65 grams per milliliter and the volume is 45.0 cubic centimeters.
[tex]d= 0.65 \ g/mL\\v= 45 \ mL[/tex]
Substitute the values into the formula.
[tex]0.65 \ g/mL * 45 \ mL=m[/tex]
Multiply. Note the milliliters, or mL will cancel out.
[tex]0.65 \ g * 45=m[/tex]
[tex]29.25 \ g=m[/tex]
The mass of the wood is 29.25 grams.
