Question

Закінчити рівняння: P_O, +CaO → КОН + Mn,O. ZnO + H_SO_ → AI(OH), + NaOH → Визначити молярну та еквівалентну маси підкреслених сполук. Згрупувати всі речовини у відповідні класи неорганічних сполук.

Answer 1

Balancing the Equations:

To balance the given chemical equations, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

1. P_O + CaO → KOH To balance this equation, we need to add coefficients in front of the compounds to equalize the number of atoms on both sides. The balanced equation is: `P4O10 + 6CaO → 4KOH`

2. Mn,O + ZnO + H_SO_ → AI(OH) + NaOH To balance this equation, we need to add coefficients in front of the compounds to equalize the number of atoms on both sides. The balanced equation is: `3MnO2 + 2ZnO + 6H2SO4 → 2Al(OH)3 + 3Na2SO4`

Calculating Molar and Equivalent Masses:

To determine the molar and equivalent masses of the compounds, we need to know the atomic masses of the elements involved. Here are the molar and equivalent masses of the underlined compounds:

1. KOH (Potassium hydroxide): - Molar mass: 56.11 g/mol - Equivalent mass: 56.11 g/mol

2. AI(OH)3 (Aluminum hydroxide): - Molar mass: 78.00 g/mol - Equivalent mass: 26.00 g/mol

3. NaOH (Sodium hydroxide): - Molar mass: 40.00 g/mol - Equivalent mass: 40.00 g/mol

Classifying the Compounds:

The given compounds can be classified into different classes of inorganic compounds:

1. KOH (Potassium hydroxide) and NaOH (Sodium hydroxide) are both examples of metal hydroxides.

2. AI(OH)3 (Aluminum hydroxide) is also a metal hydroxide.

3. P4O10 (Phosphorus pentoxide) is an oxide.

4. CaO (Calcium oxide) and ZnO (Zinc oxide) are also oxides.

5. MnO2 (Manganese dioxide) is an oxide.

6. H2SO4 (Sulfuric acid) is an acid.

7. Na2SO4 (Sodium sulfate) is a salt.

By grouping the compounds into their respective classes, we can see that we have metal hydroxides, oxides, an acid, and a salt.

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