Answer:
0.0178
Explanation:
because you can work out the amount of moles in KOH using moles = mass/mr.
The mr of the KOH is 39.1+16+1=56.1 so you do
which equals to 0.053475 so u 3SF which is 0.0535moles
than u uses the molar ratio which is 3 to 1
so 0.0535÷3=0.0178 which is the moles of FeCl3.
hope this make sense:)
I had the same problem last week it B
Its an electron withdrawing element with its high electronegativity it pulls the electron density from the sigma bond closer to it, making it more negative
Answer:
For metal reactivity increases as you go down a group, for nonmetal reactivity decreases as you go down a group.
1 cu x 63.55= 63.55
3 n x 14.01= 42.03
9 O x 16= 144
Answer is 249.58 g mol
