Calculating Change in [Cl-] in 2AgNO3(aq) + CuCL2(aq) Reaction

In summary, the change in [Cl-] in the reaction 2AgNO3(aq) + CuCl2(aq) can be calculated using the formula [Cl-]final - [Cl-]initial. The stoichiometric ratio is 2:1, meaning that for every 2 moles of AgNO3 that react, 1 mole of CuCl2 is consumed and 2 moles of AgCl are produced. The initial concentration of CuCl2 can be determined using the formula molarity = moles/volume. Temperature can affect the rate of the reaction and the solubility of the reactants and products, thereby impacting the change in [Cl-]. Calculating the change in [Cl
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Complex_
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Homework Statement



2AgNO3(aq) + CuCL2(aq) --> 2AgCl(s) + Cu(NO3)2(aq)

The concentration of Ag(NO3)2(aq) at t = 30s is .42 mol/L. At t = 60.0 its concentration is .28 mol/L. What is the change in [CL^-] during this time?

Homework Equations


The Attempt at a Solution



Not really sure even how to begin.
 
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  • #2
Complex_ said:
t = 30s is .42 mol/L.
Complex_ said:
t = 60.0 its concentration is .28 mol/L.
What could change the concentration of silver nitrate?
Complex_ said:
What is the change in [CL^-]
Got any ideas?
Complex_ said:
2AgNO3(aq) + CuCL2(aq) --> 2AgCl(s) + Cu(NO3)2(aq)
This help?
 

1. How do you calculate the change in [Cl-] in the reaction 2AgNO3(aq) + CuCl2(aq)?

The change in [Cl-] can be calculated by using the formula [Cl-]final - [Cl-]initial. In this reaction, the initial concentration of Cl- is equal to the concentration of CuCl2, since it is the only source of Cl-. The final concentration of Cl- can be determined by calculating the moles of CuCl2 that reacted and using the stoichiometric ratio to determine the moles of Cl- produced. This value can then be converted to concentration by dividing by the total volume of the solution.

2. What is the stoichiometric ratio in the reaction 2AgNO3(aq) + CuCl2(aq)?

The stoichiometric ratio is the ratio of the coefficients of the reactants and products in a chemical equation. In this reaction, the stoichiometric ratio is 2:1, meaning that for every 2 moles of AgNO3 that react, 1 mole of CuCl2 is consumed and 2 moles of AgCl are produced.

3. How can the initial concentration of CuCl2 be determined in the reaction 2AgNO3(aq) + CuCl2(aq)?

The initial concentration of CuCl2 can be determined by using the formula molarity = moles/volume. The moles of CuCl2 can be calculated using its mass and molar mass, and the volume of the solution can be measured using a graduated cylinder or burette.

4. How does temperature affect the change in [Cl-] in the reaction 2AgNO3(aq) + CuCl2(aq)?

Temperature can affect the rate of the reaction, which in turn can affect the change in [Cl-]. Higher temperatures generally lead to faster reaction rates, resulting in a larger change in [Cl-] over a given period of time. However, temperature can also affect the solubility of the reactants and products, which can impact the final concentration of Cl- in the solution.

5. What is the significance of calculating the change in [Cl-] in the reaction 2AgNO3(aq) + CuCl2(aq)?

The change in [Cl-] is important because it allows us to quantitatively measure the progress of the reaction and determine the extent to which the reactants have been consumed and the products have been produced. This information can also be used to calculate the yield of the reaction and to compare the effectiveness of different reaction conditions or catalysts.

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