An atom that loses one or more valence electrons to become a positively charged ion is known as a cation, while an atom that gains electrons and becomes negatively charged is known as an anion.
The rule of three is a way to solve problems of proportionality between three known values and one unknown. <u>This is an operation of finding the fourth term of a proportion knowing the other three</u>.
We can use the rule of three to solve this problem in this way,
500 mL → 6 grams
40 mL → x
This is the same as saying: if in 500 mL there should be 6 grams of agarose powder then in 40 mL how many grams should there be?
So,
→ x = 0.48 g = 480 mg
Then, you need to dissolved 480 mg of agarose powder in 40 mL of water to meet the recipe.
<span>Molar mass of AgNO3 = 169.8731 g/mol</span>
Convert grams Silver Nitrate to moles or moles Silver Nitrate to grams
Molecular weight calculation:
107.8682 + 14.0067 + 15.9994*3
Its Phosphorus with a negative 3 charge.