Answer:
1.345*10⁻⁴ mol/L
15.023 mg/L
Explanation:
The chemical <u>formula of ferrocene</u> is Fe(C₅H₅)₂, thus its molecular weight is:
55.845 g/mol + 10*12g/mol + 10 *1g/mol = 185.845 g/mol
- The moles of Fe contained in 25 mg (or 0.025 g) of ferrocene are:

- The final volume is 500 mL, or 0.5 L. So the iron concentration in mol/L is:

- We can convert that value into mg/L:

What type of rock is the wave made of?
Answer: The Wave is a natural formation of ~sandstone rocks~
The answers from top to bottom right to left are
3,1,2,4