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PolarNik [594]
3 years ago
14

How many moles are in 458 grams of Na2SO4

Chemistry
1 answer:
Anuta_ua [19.1K]3 years ago
7 0
There are 3.2 moles of Na2SO4
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Which half-reaction can occur at the anode in a
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Label the states of each compound in the reaction below.
devlian [24]

Answer:

CuSO₄(aq) + 2KOH (aq) —> Cu(OH)₂(s) + K₂SO₄(aq)

Explanation:

CuSO₄ + 2KOH —> Cu(OH)₂ + K₂SO₄

To know the state of each compounds, we shall determine the complete ionic equation. This can be obtained as follow:

In solution, CuSO₄ and KOH will dissociate as follow:

CuSO₄(aq) —> Cu²⁺(aq) + SO₄²¯(aq)

KOH (aq) —> K⁺ (aq) + OH¯(aq)

CuSO₄(aq) + KOH (aq) —>

Cu²⁺(aq) + SO₄²¯(aq) + 2K⁺(aq) + 2OH¯(aq) —> Cu(OH)₂(s) + 2K⁺(aq) + SO₄²¯(aq)

Note: Cu(OH)₂ is insoluble in water.

Therefore, the elemental equation is:

CuSO₄(aq) + 2KOH (aq) —> Cu(OH)₂(s) + K₂SO₄(aq)

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True or false: mole fractions are intensive properties g
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If 0.060 faraday is passed through an electrolytic cell containing a solution of In3+ ions, the maximum number of moles of In th
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What is the most stable resonance structure if oxygen is the central atom in the CON– ion?
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Answer:

The most stable resonance structure shown in fig (II).

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Given that,

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We need to find the most stable resonance structure

According to figure,

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So, N is the more stable in fig (II).

Hence, The most stable resonance structure shown in fig (II).

8 0
3 years ago
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