Answer:
4.419 g
Explanation:
55 years is 5.5 half lives
200 g * (1/2)^5.5 = 4.419 g
Answer:
a. 1,157x10⁻⁵M/s
b. 5,787x10⁻⁶M/s
Explanation:
For the reaction:
2H₂O₂(aq) → 2H₂O(l) + O₂(g).
a. The rate law of descomposition is:
Where d[H₂O₂] is the change in concentration of H₂O₂ (between 0s and 2,16x10⁴s) is (1,000M-0,500M) and dt is (0s-2,16x10^4s). Replacing:
As this rate is = d[O₂]/dt(Rate of production of O₂), the rate of production of O₂(g) is <em>1,157x10⁻⁵M/s</em>
b. Between 2,16x10⁴s and 4,32x10⁴s, rate law is:
The rates are <em>5,787x10⁻⁶M/s</em>
I hope it helps!
A. CaCl2 and H2O
HCl +Ca(OH)2. CaCl2 +H2O
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Answer:
The student did not have enough of the compound
Explanation:
So
As the student needs 125 g of the compound therefore the available bottle isnot enough for him.
So, the student didnot have enough of the compound