Problemas
__ 9. How many grams of silver are produced when 43.5 g of strontium is added to silver nitrite? underline ( )Sr+underline ( )AgNO_(2)arrow underline ( )Sr(NO_(2))_(2)+underline ( )Ag a. 107gAg b. 151 g Ag c. 1399 Ag d. 180. g Ag __
Roztwór
Hilda
maestro · Tutor durante 5 años
4.3
(189 Votos)
Respuesta
To solve this problem, we need to use stoichiometry based on the balanced chemical equation. The balanced equation for the reaction is:
From the balanced equation, we see that 1 mole of Sr produces 2 moles of Ag.First, calculate the moles of strontium (Sr) used:- Molar mass of Sr = 87.62 g/mol
According to the balanced equation, 1 mole of Sr produces 2 moles of Ag. Therefore, 0.496 moles of Sr will produce:
Now, calculate the mass of silver (Ag) produced:- Molar mass of Ag = 107.87 g/mol
Therefore, the correct answer is:a.