Answer:
45.78 g NaClO
Explanation:
The reaction that takes place is:
- 2NaOH + Cl₂ → NaCl + NaClO + H₂O
In order to react completely, 1.36 moles of chlorine would require (2*1.36) 2.72 moles of NaOH. There are more moles than that, so NaOH is the limiting reactant.
We <u>calculate the moles of NaClO formed</u>, from the limiting reactant:
- 1.23 mol NaOH * = 0.615 mol NaClO
Finally we <u>convert NaClO moles to grams</u>, using its <em>molecular weight</em>:
- 0.615 mol NaClO * 74.44 g/mol = 45.78 g NaClO
200.0 mL =0.2000 L
Molarity = number of mole solute / volume solution(L) = 0.50 mol/0.2000 L=
= 2.5 mol/L =2.5M
Answer : 2.5 M
Answer: Protons
WHY?
Changing electrons will only result in the same element having different charges and hence, changing it's chemical properties.
Changing neutrons will not change an element but it will result in an isotope forming instead. (Isotopes are elements of the same type with different neutron numbers.)
However, changing the proton number would immediately change the nucleus composition, resulting in a change in element with a negative charge as there are more electrons than protons. This results in a expansion in valance electrons's distance from the nucleus. This results in a change in chemical properties of the element.
Therefore, a change in Protons is the answer.