Answer:
A scientific question is basically a question that can lead to a hypothesis to help us figure out the observation in science. I hope this helps you
They are not held together by strong forces.
The concentration in mol L-l (M) = 0.717
<h3>Further explanation</h3>
Given
12% solution of tetrahydrate magnesium chloride (MgCl₂)
Required
The concentration
Solution
Tetrahydrate magnesium chloride (MgCl₂)⇒MgCl₂.4H₂O
MW = Ar Mg+2. Ar Cl+8. Ar H + 4. Ar O
MW=24.31 + 2 x 35.45 + 8 x 1.01 + 4 x 16
MW=24.31+70.9+8.08+64
MW=167.29 g/mol
12% solution = 12 % m/v = 12 g in 100 ml solution
For 1 L solution :
The concentration in g/L = 120 g/L
Convert grams to moles :
Cube root the -216 which will make x = cubedroot(-216) or x = -6
This is Chemistry so what you would do is find what each side is equal to and then add or subtract the co-efficients or exponents according to the sides being equal... One thing to remember though is whatever you do to one side you must do to the other side.