Answer:
3.18 M
Explanation:
Given data
[H₂]eq = [I₂]eq = 0.450 M
[HI]eq = ?
Let's consider the following reaction at equilibrium.
H₂(g) + I₂(g) ⇄ 2 HI(g) Kc(400°C) = 50.0
The concentration equilibrium constant (Kc) is:
Kc = [HI]²eq / [H₂]eq × [I₂]eq
[HI]²eq = Kc × [H₂]eq × [I₂]eq
[HI]eq = √(Kc × [H₂]eq × [I₂]eq)
[HI]eq = √(50.0 × 0.450 × 0.450)
[HI]eq = 3.18 M
Answer:
There are three forces acting on the skateboard. One of these forces is the weight of the rider. Another is the force of gravity on the board itself. The third is the force of the ground pushing up on the skateboard.
A sodium atom changes into a sodium ion by losing electrons. When an atom loses an electron, it's number of protons and electrons are not balanced. When an atom loses an electron (negative charge) it becomes more positive. Hopefully this helps!
ppm is parts per million, and is usually done by weight.
So, 1000g, times (1350/1000000) = 1.350g iron.
