\(\frac{m_{X}}{m_{Y}} = \frac{M_{X}.n_{X}}{M_{Y}.n_{Y}}\)
Ta có A1
\(\frac{75}{25} = \frac{M_{X}}{M_{Y}} . 2 \rightarrow \frac{M_{X}}{M_{Y}} = \frac{3}{2}\)
Ta lại có A2:
\(\frac{90}{10} = \frac{n_{X}}{n_{Y}} . \frac{3}{2} \rightarrow \frac{n_{X}}{n_{Y}} = 6\)
Vậy chất A2 là X6Y