Question

H2S+KOH=X+Y X+HCl()=A+.... A+CuCl2=B+..... Y+ZnCl2=C+... C+O2=D+... НАЙТИ Mr(B+D) срочно

Answer 1

Решение во вложении:

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Answer 2

Chemical Reaction Equations

The chemical reactions can be represented as follows:

1. H2S + 2KOH → K2S + 2H2O The reaction between hydrogen sulfide (H2S) and potassium hydroxide (KOH) produces potassium sulfide (K2S) and water (H2O) [[1]].

2. 2HCl + Cu → CuCl2 + H2 When hydrochloric acid (HCl) reacts with copper (Cu), it forms copper(II) chloride (CuCl2) and hydrogen gas (H2) [[2]].

3. CuCl2 + Zn → ZnCl2 + Cu The reaction between copper(II) chloride (CuCl2) and zinc (Zn) results in zinc chloride (ZnCl2) and copper (Cu) [[3]].

4. 2Cu + O2 → 2CuO When copper (Cu) reacts with oxygen (O2), it forms copper(II) oxide (CuO) [[4]].

Calculating Molar Mass (Mr)

To find the molar mass (Mr) of the product formed from the combination of B and D, we need to calculate the molar mass of each compound and then add them together.

1. Molar Mass of CuCl2 (B) - Copper (Cu) has a molar mass of approximately 63.55 g/mol. - Chlorine (Cl) has a molar mass of approximately 35.45 g/mol. - Therefore, the molar mass of CuCl2 (B) is approximately 63.55 + (2 * 35.45) = 134.45 g/mol.

2. Molar Mass of O2 (D) - Oxygen (O) has a molar mass of approximately 16.00 g/mol. - Therefore, the molar mass of O2 (D) is approximately 2 * 16.00 = 32.00 g/mol.

3. Total Molar Mass (Mr) - Adding the molar masses of B and D together: - Mr(B + D) = 134.45 + 32.00 = 166.45 g/mol.

Therefore, the molar mass (Mr) of the product formed from the combination of B and D is approximately 166.45 g/mol.

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