Chapter 5, Problem 70A

Interpretation Introduction

Interpretation : The gold with more weight from 4.25g and 425mg should be determined.

Concept Introduction :

It two weights have the same units then they can be easily compared, and a conversion factor is a numeric ratio which used to prove a measurement in one unit as another unit which is always equal to one.

For convert the 1gram weight into milligram,

  ${\text{1 g=10}}^{\text{3}}\text{ mg}$

Explanation of Solution

Given information :

The weight in gram and milligram are $\text{4}\text{.25g}\text{and}\text{425mg}$ respectively.

Firstly, convert the mass $\text{4}\text{.25g}$ into milligram, such that

  $\begin{array}{c}1g=10^{3}mg\\ 4.25g=4.25\times 10^3\\ =4250g\end{array}$

And, another weight is 425 mg. so, out of the both weights, 4.25 g gold is greater.

Conclusion

The weight 4.25 g is more than the weight 425 mg.