2 years ago

What is important to note regarding neutral atoms?

Chemistry

1 answer:

S_A_V [24]2 years ago

8 0

Answer:

neutral atoms when an atom is charge less

Explanation:

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3 years ago

Find the [h3o ] in a sauvignon blanc with a ph of 3.24.

KengaRu [80]

Hello!

The H₃O⁺ concentration can be found using the definition of pH and clearing the equation for [H₃O⁺]. The solution has a pH lower than 7, so the Sauvignon Blanc is acid. The calculation for [H₃O⁺] is shown below:

$pH=-log [H_3O^{+}]$

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So, the concentration of H₃O⁺ in a Sauvignon Blanc with a pH of 3,24 is 0,00058 M

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2 years ago

A certain half-reaction has a standard reduction potential -1.33V . An engineer proposes using this half-reaction at the anode o

Paha777 [63]

Answer:

a. -0.63 V

b. No

Explanation:

Step 1: Given data

Standard reduction potential of the anode (E°red): -1.33 V

Minimum standard cell potential (E°cell): 0.70 V

Step 2: Calculate the required standard reduction potential of the cathode

The galvanic cell must provide at least 0.70V of electrical power, that is:

E°cell > 0.70 V [1]

We can calculate the standard reduction potential of the cathode (E°cat) using the following expression.

E°cell = E°cat - E°an [2]

If we combine [1] and [2], we get,

E°cat - E°an > 0.70 V

E°cat > 0.70 V + E°an

E°cat > 0.70 V + (-1.33 V)

E°cat > -0.63 V

The minimum E°cat is -0.63 V and there is no maximum E°cat.

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2 years ago