Respuesta :

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.

  • A cubic centimeter is equal to a milliliter.
  • Therefore, 45 cubic centimeters also equals 45 milliliters.

[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.