Answer: pH = 14
Explanation: Please see the attachments below
The reaction equation is:
<span>2CuO(s) + C(s) </span>→ <span>2Cu(s) + CO</span>₂<span>(g)
First, we determine the number of grams present in one ton of copper oxide. This is:
1 ton = 9.09 x 10</span>⁵ g
We convert this into moles by dividing by the molecular mass of copper oxide, which is:
9.09 x 10⁵ / 79.5 = 11,434 moles
Each mole of carbon reduces two moles of copper oxide, so the moles of carbon required are:
11,434 / 2 = 5,717 moles of Carbon required
The mass of carbon is then:
5,717 x 12 = 68,604 grams
The mass of coke is:
68,604 / 0.95 = 72,214 g
The mass of coke required is 7.22 x 10⁴ grams
Answer:
8.4
Explanation:
-log(4.08x10^-9) = 8.4
- Hope that helped! Please let me know if you need further explanation.
Answer:
B
Explanation:
Energy is released, when a gas changes to solid
1 Its low gravitational influence.
2 Its extremely faint, compared to all the other objects out there.
3 Its Size
