Answer:
34.33 %.
34.33 %.
34.33 %.
Explanation:
- To calculate the mass percent or weight percent of a solution, you must divide the mass of the solute by the mass of the solution (both the solute and the solvent together) and then multiply by 100 to change it into percent.
<em>W% = [(W of solute NaF)/(W of solution)] x 100.</em>
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W of solute NaF = 65.4 g.
W of solution = W of solute NaF + W of water = 65.4 g + 125.1 g = 190.5 g.
∴ W% = [(W of solute NaF)/(W of solution)] x 100 = [(65.4 g)/(190.5 g)] x 100 = 34.33 %.
Answer:
True! Under most conditions, they are usually the same.
This is because to balance out the negativity or positivity of an atom, the opposite joins in.
Hope this helps.
It helped be able to look more closely at the the cells

Bohr's model is one of the ea.rliest model of atom in history, modified from Ruth.erford's model.
In 1913, a D.anish physi.cts, Niels Bohr refi.ned Ruth.erford model of the atom. How.ever, he disco.vers that elec.tron can only have spe.cific amo.unts of energy. These energy levels are also known as ele.ctron shells.
As for the Lewis Dot Structure, it is the m.odel of an atom that has the che.mical symbol for the ele.ment surronded by dots to rep.resent the valence ele.ctron of the ele.ment.

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