The correct answer is 3.
In any atom, the nucleus will be positively charged because the only ions in the nucleus are neutrons, which have a neutral charge, and protons, which have a positive charge.
Electrons are negatively charged, and they are in the orbital, thus making the orbital negatively charged.
<u>Answer:</u> The volume of stock solution of ammonia that is needed is 48.67 mL
<u>Explanation:</u>
To calculate the volume of stock solution, we use the equation:
where,
are the molarity and volume of the stock ammonia solution
are the molarity and volume of diluted ammonia solution
We are given:
Putting values in above equation, we get:
Hence, the volume of stock solution of ammonia that is needed is 48.67 mL