Answer:
1. 1.80x10⁻⁵ (w/w %).
2. 1.80x10⁻⁴ parts per thousand
3. 0.18 parts per million
Explanation:
The solution contains 45.1μg / 250mL.
1. Weight percent (100 times mass in grams of solute per gram of solution, as there are 250mL of water = 250g):
45.1x10⁻⁶g / 250g * 100 =
<h3>1.80x10⁻⁵ (w/w %)</h3>
2. Parts per thousand (mg of solute per g of solution).
45.1μg * (1x10⁻³mg / 1μg) = 0.0451mg.
0.0451mg / 250g =
<h3>1.80x10⁻⁴ parts per thousand</h3>
3. Parts per million (μg of solute per g of solution):
45.1μg / 250g =
<h3>0.18 parts per million</h3>
Answer:
Sharing of electrons such that each atom attains an octet
Answer:
D. Metals
Out of the 118 elements only about 30% are not made of metal. This can be tested easily if you have household items that have metal in them or some that do not. Additionally you will need a magnet to tell if there is really metal.
