Answer:
4.8 %
Explanation:
We are asked the concentration in % by mass, given the molarity of the solution and its density.
0.8 molar solution means that we have 0.80 moles of acetic acid in 1 liter of solution. If we convert the moles of acetic acid to grams, and the 1 liter solution to grams, since we are given the density of solution, we will have the values necessary to calculate the % by mass:
MW acetic acid = 60.0 g/mol
mass acetic acid (the solute) = 0.80 mol x 60 g / mol = 48.00 g
mass of solution = 1000 cm³ x 1.010 g/ cm³ (1l= 1000 cm³)
= 1010 g
% (by mass) = 48.00 g/ 1010 g x 100 = 4.8 %
The subatomic particles that identifies an element and also represents its atomic number would be A. The number of protons.
Answer:
B as all the forces cancel out
Explanation:
20-20=0
25-25=0
The answer according to my teacher would be Supersaturated
Answer:
True
Explanation:
Because Carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates.
