the balanced chemical equation for the reaction of copper (cu) and silver nitrate (agno₃) is shown below. cu…

the balanced chemical equation for the reaction of copper (cu) and silver nitrate (agno₃) is shown below. cu + 2agno₃ → 2ag + cu(no₃)₂\nhow many moles of copper must react to form 3.50 mol of ag?\n0.175 mol\n1.75 mol\n7.00 mol\n17.0 mol

the balanced chemical equation for the reaction of copper (cu) and silver nitrate (agno₃) is shown below. cu + 2agno₃ → 2ag + cu(no₃)₂\nhow many moles of copper must react to form 3.50 mol of ag?\n0.175 mol\n1.75 mol\n7.00 mol\n17.0 mol

Answer

Explanation:

Step1: Identify mole - ratio

From the balanced equation $Cu + 2AgNO_3\rightarrow2Ag+Cu(NO_3)2$, the mole - ratio of $Cu$ to $Ag$ is $n{Cu}:n_{Ag}=1:2$.

Step2: Calculate moles of Cu

We know $n_{Ag} = 3.50$ mol. Using the mole - ratio $\frac{n_{Cu}}{n_{Ag}}=\frac{1}{2}$, we can solve for $n_{Cu}$. So $n_{Cu}=\frac{1}{2}\times n_{Ag}$. Substituting $n_{Ag} = 3.50$ mol, we get $n_{Cu}=\frac{1}{2}\times3.50$ mol $ = 1.75$ mol.

Answer:

1.75 mol