Answer:
0.075 moles of EDTA are left.
Explanation:
To solve this problem we need to use the definition of Molar concentration (M):
M=
With that equation in mind, in the problem we're given two out of the three factors: Concentration and Volume. We're asked to calculate the remaining factor.
Before we calculate we convert 150 mL to L, so we divide 150 by 1000.
Lastly we calculate the number of moles of EDTA left:
0.5 M * 0.150 L = 0.075 moles.
20 because each row has 20 columns
Answer: It's the circulatory system
Explanation:
<span>She must use Avogadro's Number. Avogadro's number is the number of molecules in a mole of a substance, so if you have 12.4 moles of something, then you have 12.4 times Avogadro's number of molecules.</span>