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prisoha [69]
3 years ago
12

iodid ion is oxidized to hypoiodite ion by permanganate what is the ratio of hydroxide ions to iodide ions in balanced equation

Chemistry
1 answer:
ad-work [718]3 years ago
4 0

<u>Answer:</u> The ratio of number of hydroxide ions to iodide ions is 2 : 1.

<u>Explanation:</u>

The chemical equation for the oxidation of iodide ion is oxidized to hypoiodite ion by permanganate follows:

2MnO_4^-+I^-+H_2O\rightarrow 2MnO_2(s)+IO_3^{-}+2OH^{-}

According to mole concept:

1 mole of a substance contains 6.022\times 10^{23} number of particles

Moles of iodide ions = 1 mole

Number of iodide ions = (1\times 6.022\times 10^{23}

Moles of hydroxide ions = 2 mole

Number of hydroxide ions = (2\times 6.022\times 10^{23}

Taking the ratio of number of hydroxide ions and number of iodide ions are as follows:

\frac{\text{Number of hydroxide ions}}{\text{Number of iodide ions}}=\frac{(2\times 6.022\times 10^{23})}{(1\times 6.022\times 10^{23})}\\\\\frac{\text{Number of hydroxide ions}}{\text{Number of iodide ions}}=\frac{2}{1}

Hence, the ratio of number of hydroxide ions to iodide ions is 2 : 1.

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frez [133]
Ionic compounds generally occur between metals and non-metals due to their large electronegativity difference. You can simple go down Group 1 and Group 17 of the periodic table.

Examples:

NaCl (Sodium Chloride)
KCl (Potassium Chloride)
RbCl (Rubidium Chloride)
CsCl (Cesium Chloride)
8 0
2 years ago
Calculate the standard reaction enthalpy for the reaction NO2(g) → NO(g) + O(g) given +142.7 kJ/mol for the standard enthalpy of
bulgar [2K]

Answer:

The standard reaction enthalpy for the given reaction is 235.15 kJ/mol.

Explanation:

O_2(g) \rightarrow \frac{2}{3}O_3(g),\Delta H^o_{1}=142.7 kJ/mol..[1]

O_2(g) \rightarrow 2 O(g),\Delta H^o_{2}=498.4 kJ/mol..[2]

NO(g) + O_3(g)\rightarrow NO_2(g) + O_2(g) ,\Delta H^o_{3} = -200 kJ/mol..[3]

NO_2(g)\rightarrow NO(g) + O(g),\Delta H^o_{4}=?..[4]

Using Hess's law:

Hess’s law of constant heat summation states that the amount of heat absorbed or evolved in a given chemical equation remains the same whether the process occurs in one step or several steps.

2 × [4] = [2]- (3 ) × [1] - (2) × [3]

2\times \Delta H^o_{4}=\Delta H^o_{2} -3\times \Delta H^o_{1}-2\times \Delta H^o_{3}

2\times \Delta H^o_{4}=498.4 kJ/mol-3\times 142.7 kJ/mol-2\times -200 kJ/mol

2\times \Delta H^o_{4}=470.3 kJ/mol

\Delta H^o_{4}=\frac{470.3 kJ/mol}{2}=235.15 kJ/mol

The standard reaction enthalpy for the given reaction is 235.15 kJ/mol.

7 0
3 years ago
How many moles are in 9.25E24 formulas units of sodium acetate?
Lelu [443]

Answer:

<h2>15.37 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{9.25 \times  {10}^{24} }{6.02 \times  {10}^{23} }  \\  = 15.365448...

We have the final answer as

<h3>15.37 moles</h3>

Hope this helps you

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Answer:

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7 0
2 years ago
Read 2 more answers
20 points - please helpp
Rzqust [24]

Answer:

FeSO₄ + 2NaOH  →  Fe(OH)₂  +  Na₂SO₄

Explanation:

The equation for the reaction is:

FeSO₄ + 2NaOH  →  Fe(OH)₂  +  Na₂SO₄  

Dissociation of each compound

FeSO₄ → Fe²⁺  +  SO₄⁻²

NaOH → Na⁺  +  OH⁻

Fe(OH)₂ →  Fe²⁺  +  2OH⁻

Na₂SO₄ → 2Na⁺  +  SO₄⁻²

5 0
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