A volume of 45.3mL of .719 M Ca(NO3)2 solution is mixed with 82.3mL of 1.409M Ca(NO3)2 solution calculate the concentration of the final solution
moles soln 1 = M x L
moles soln 2 = M s L
Add moles together. Add L together. Final concn = moles/L. Substitute and solve.
To calculate the concentration of the final solution after mixing the two given solutions, you need to consider the total volume and the total amount of the solute (Ca(NO3)2) in the mixture.
First, calculate the total volume of the final solution by adding the volumes of the two given solutions:
Total volume = 45.3 mL + 82.3 mL = 127.6 mL
Next, calculate the total amount of Ca(NO3)2 in the mixture. This can be done by multiplying the volume of each solution by its respective concentration:
For the first solution:
Amount of Ca(NO3)2 = volume × concentration = 45.3 mL × 0.719 M
For the second solution:
Amount of Ca(NO3)2 = volume × concentration = 82.3 mL × 1.409 M
Now, add the amounts of Ca(NO3)2 from both solutions to get the total amount in the mixture:
Total amount of Ca(NO3)2 = Amount from first solution + Amount from second solution
Finally, divide the total amount of Ca(NO3)2 by the total volume of the final solution to get the concentration of the mixture:
Concentration of the final solution = Total amount of Ca(NO3)2 / Total volume of the final solution
By plugging in the values and performing the calculation, you will obtain the concentration of the final solution.