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35.5 g of silver nitrite is reacted with 35.5 g of sodium sulfide, producing silver sulfide and sodium nitrite.

a. Write and balance the equation.

b. Calculate the number of grams of silver sulfide produced.

c. How many grams of silver nitrite will remain at the end of the reaction?

Answer :

Final Answer:

a. Balanced Equation: [tex]\(2AgNO_2 + Na_2S \rightarrow Ag_2S + 2NaNO_2\)[/tex]

b. 71 grams of silver sulfide will be produced.

c. 0 grams of silver nitrite will remain at the end of the reaction.

Explanation:

a. To balance the given chemical equation, we first write down the unbalanced equation:

[tex]\(AgNO_2 + Na_2S \rightarrow Ag_2S + NaNO_2\)\\[/tex]

Balancing the equation, we get

[tex]\(2AgNO_2 + Na_2S \rightarrow Ag_2S + 2NaNO_2\)[/tex]

This balanced equation shows the correct stoichiometry of the reaction, indicating that 2 moles of silver nitrite react with 1 mole of sodium sulfide to produce 1 mole of silver sulfide and 2 moles of sodium nitrite.

b. To calculate the number of grams of silver sulfide produced, we need to find the molar mass of [tex]\(Ag_2S\)[/tex] which is

[tex]\(2 \times 107.87 \, \text{g/mol (Ag)} + 1 \times 32.07 \, \text{g/mol (S)} = 243.81 \, \text{g/mol}\)[/tex]

Using the balanced equation, we can see that 2 moles of [tex]\(Ag_2S\)[/tex]are produced from 2 moles of [tex]\(AgNO_2\)[/tex]. Since the total mass of silver nitrite is 71 grams [tex](\(2 \times 35.5 \, \text{g}\))[/tex], the mass of silver sulfide produced will also be 71 grams.

c. According to the balanced equation, 2 moles of [tex]\(AgNO_2\)[/tex]react with 1 mole of [tex]\(Na_2S\)[/tex]. Since both substances are provided in equal masses (35.5 grams each), all the silver nitrite will react completely, leaving 0 grams of silver nitrite at the end of the reaction.

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