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A student prepared the Ni^2+ standard solutions and obtained the following buret

ID: 817974 • Letter: A

Question

A student prepared the Ni^2+ standard solutions and obtained the following buret readings for solution #2. Calculate tge concentration of Ni^2+ in the resulting solution.

Test Tube

Volume of Nickel (II) (Buret 1)

Volume of Nickel (II) (Buret 1)

Volume of Nickel (II) (Buret 1)

Volume of water (Buret 2)

Volume of water (Buret 2)

Volume of water (Buret 2)

Test Tube

Initial Buret Reading

Final Buret Reading

Volume dispensed

Initial Buret Reading

Final Buret Reading

Volume Dispensed

2

22.30 mL

26.89 mL

18.12

24.98

  

Test Tube

     

Volume of Nickel (II) (Buret 1)

     

Volume of Nickel (II) (Buret 1)

     

Volume of Nickel (II) (Buret 1)

     

Volume of water (Buret 2)

     

Volume of water (Buret 2)

     

Volume of water (Buret 2)

     

Test Tube

     

Initial Buret Reading

     

Final Buret Reading

     

Volume dispensed

     

Initial Buret Reading

     

Final Buret Reading

     

Volume Dispensed

     

2

     

22.30 mL

     

26.89 mL

     

     

18.12

     

24.98

     

   A student prepared the Ni^2+ standard solutions and obtained the following buret readings for solution #2. Calculate tge concentration of Ni^2+ in the resulting solution.

Explanation / Answer

M1V1=M2V2

1*22.30=M2*26.89

M2=22.30/26.89

M2=0.829 MOLAR

2) M1V1=M2V2

1*18.12=M2* 24.98

M2=0.725 MOLAR