B. 8
Although it may seem that transition metals would have more than 8 valence electrons, they in fact do not.
2+8+2+4+7=23, i think that should be the answer just add everything and multiply if you have to
Answer:
10.3 g Li) / (6.9410 g Li/mol) x (1 mol Li3PO4 / 3 mol Li) / (0.750 mol/L Li3PO4) = 0.6595 L = 660. mL
Explanation:
As you said, the answer is 150.
But in all the numbers, there's a comma with two zeros, and so you have to put them in your answer : 150,00
They are the significative numbers.
Hope it helps
