What will happen in a case there is different number of electrons compare to protons is<em> D: The particle is considered an</em><em> ion.</em>
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- An ion can be regarded as atom or molecule which posses some amount of electron more than amount of protons and vice versa.
- It can be regarded as molecules that has a charge. i.e ( -ve or +ve)
- When the number of electron in this molecules or atom is more that that of the present protons, then the ion is negatively charged ion.
- When a particles posses less electron compare to the present protons then the ion is positively charged.
Therefore, an ion can be charged positively and it can be charged negatively
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Answer:
The answer to the question is
The solution contains 4.73 % by mass of NaCl
Explanation:
To solve this we list out the variables thus
The Molarity of NaCl = 0.850 M,
Density of solution = 1.05 g/mL
Molar mass of NaCl = 58.44 g/mol
Therefore mass of NaCl in he solution = (58.44 g/mol) × (0.850 M) = 49.674 g of NaCl
However the density = 1.05 g/mL or 1050 g/L
Therefore the mass percent of NaCl in 1 liter of solution or 1050 g of solution = (49.674/1050) × 100 = 4.73 %
The concentration of NaCl in mass percent = 4.73 %
1 mole ------------- 6.02 x 10²³ molecules
( moles ) ---------- 2.0 x 10²² molecules
moles = ( 2.0 x 10²² ) x 1 / 6.02 x 10²³
moles = 2.0 x 10²² / 6.02 x 10²³
= 0.03 moles of water
hope this helps!
E = HF, where H is Planck's constant, 6.63 x 10 - 34 j.s