Answer:
0.369M
Explanation:
☆ Volume has to be in litres
Molarity of solution
= 0.99 ÷2.5
= 0.369 M
<span>Calculate mass of CuSO4 needed to prepare 2 lithium l of 2M solution </span>:D
Answer:
23 moles Oxygen × 6.02 × 1023 atoms = 1.3846 × 1025 atoms Oxygen.
Explanation:
Answer:
Helium
Explanation:
Atomic radii vary in a predictable manner across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group and decreases from left to right over a period of time. Helium is therefore the smallest element, and francium is the largest.