Chemistry

Felix Fitzpatrick

18 August, 17:16

A student dissolved 5.00 g of Co (NO3) 2 in enough water to make 100. mL of stock solution. He took 4.00 mL of the stock solution and then diluted it with water to give 275. mL of a final solution. How many grams of NO3 - ion are there in the final solution?

a: 0.0678 g

b: 0.0493 g

c: 0.0247 g

d: 0.136 g

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