Calculate the molarity of the solution having 30 g of Co(NO3)2. 6H2O in 4.3 L of solution?

Answers (1)
S Sumit

Molar mass of Co (NO3)2.6H2O = 59 + 2 (14 + 3 × 16) + 6 × 18

                                                    = 291 g mol−1

∴Moles of Co (NO3)2.6H2O

 = 0.103 mol

Therefore, molarity

 

= 0.023 M

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