Justify reasoning what is a good estimate for the solution to the equation x cubed equals 95 how did you come up with your estimate
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Ответ:
The cube of 4 is 64
The cube of 5 is 125
The cube root of 95 is not an integer and can be estimated to lie between 4 and 5.
when calculated, cube root of 95 is 4.562902.
Ответ:
C. 4x10⁻⁴ mol / (Ls)
Explanation:
Based in the reaction:
5 H₂O₂(aq) + 2 MnO₄⁻(aq) + 6 H⁺(aq) → 2 Mn²⁺(aq) + 8 H₂O(l) + 5 O₂(g)
2 moles of MnO₄⁻ disappears while 5 moles of O₂ appears.
If 5 moles appears in a rate of 1.0x10⁻³mol /(Ls), 2 moles will disappear:
2 moles ₓ (1.0x10⁻³mol /(Ls) / 5 moles) = 4x10⁻⁴ mol / (Ls)
Right answer is:
C. 4x10⁻⁴ mol / (Ls)