Question

What is the mass of this piece of porcelain in oz?Show all work/use conversions/metric prefixes. I

Answer 1

The mass of the piece of porcelain is 27.3 oz.

1st) It is necessary to calculate the mass of the porcelain with the density formula:

`\begin{gathered} \text{density}=\frac{mass}{\text{volume}} \\ 2.40g\mathrm{}mL^(-1)=(mass)/(325mL) \\ 2.40g.mL^(-1)\cdot325mL=\text{mass} \\ 780g=\text{mass} \end{gathered}`

2nd) Now it is necessary to convert the gram unit to oz. Here we need to use the relation that 1 g is equal to 0.035 oz:

`780g\text{.}(0.035oz)/(1g)=27.3oz`

So, the mass of the piece of porcelain is 27.3 oz.