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vovangra [49]
3 years ago
6

A company produces packets of soap

SAT
1 answer:
Soloha48 [4]3 years ago
3 0

Answer:

(b) 31.85

Explanation:

First, we need to know the z-score for a one-sided confidence interval with 95% coverage. Looking at a z-score table, this value is 1.645. Then:

x = (z \cdot \sigma) + \mu = (-1.645 \cdot 0.7) + 33 = 31.85

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The ability of Anthony to be able to smell the gas in his house because of the activation of his olfactory receptors through the process of sensation.

<h3>What is olfactory system?</h3>

The olfactory system refers to the sense of smell. Human being feel the sensation of smell through the nose. The nose is the organ of the body responsible for perceiving both good and bad odor.

There are five major sense organs in the body:

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Learn more about olfactory system:

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2 years ago
For the galvanic (voltaic) cell fe(s) + mn²⁺(aq) ⟶ fe²⁺(aq) + mn(s) (e° = 0.77 v at 25°c), what is [fe²⁺] if [mn²⁺] = 0.050 m an
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The concentration of Iron in the galvanic (voltaic) cell Fe(s) + Mn²⁺(aq) ⟶ Fe²⁺(aq) + Mn(s) is 0.02297 M.

<h3>What is the Nernst Equation?</h3>

The Nernst equation enables us to identify the cell potential(voltage) in presence of non-standard conditions in a galvanic cell. It can be expressed by using the formula:

\mathbf{E_{cell} = E_o - \dfrac{0.059}{n} \times log \dfrac{[Fe^+]}{[Mn^{2+}]}}

where;

  • n = Number of electrons = 2
  • \mathbf{E_o} = Initial voltage = 0.77 V
  • \mathbf{E_{cell}} = Cell voltage = 0.78 V
  • \mathbf{[Mn^{2+}]} = Manganese concentration = 0.050 M

Replacing the values into the above equation, we have:

\mathbf{0.78 = 0.77 - \dfrac{0.059}{2} \times log \dfrac{[Fe^{2+}]}{[0.050]}}

\mathbf{0.78 -0.77= -0.0296\times log \dfrac{[Fe^{2+}]}{[0.050]}}

\mathbf{log^{-1} (-0.3378) = \dfrac{[Fe^{2+}]}{[0.050]}}

\mathbf{Fe^{2+} = (0.4594\times 0.050 )\ M}

\mathbf{Fe^{2+} =0.02297 \ M }

Learn more about using the Nernst equation here:

brainly.com/question/24258023

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2 years ago
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aalyn [17]
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