If 30.0 g absorbs 255 J of heat, how much does the temperature of the water change? Would the temperature be increasing or decre
1 answer:
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Answer:
0.075 M
Explanation:
5Fe²⁺(aq) + MnO₄⁻(aq) + 8H⁺(aq) → 5Fe³⁺(aq) + Mn²⁺(aq) + 4H₂O(ℓ)
Using the moles of Fe²⁺ that reacted, we can <em>calculate the reacting moles of MnO₄⁻</em>:
0.0450 mol Fe⁺² * = 0.0090 mol MnO₄⁻
Now we divide the moles of MnO₄⁻ by the volume in order to <u>calculate the molarity of the solution</u>, keeping in mind that 120.0 mL = 0.120 L.
0.0090 mol MnO₄⁻ / 0.120 L = 0.075 M
Answer:
a
The expected value is = 39 units
The standard deviation is = 0.1212 unites
b
The probability is = 0.2047 units
Explanation:
The explanation of this answer is shown on the first uploaded image
