A Student Dissolved 5

question 98

Multiple Choice

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) 0.0 247 g
• B) 0.0 493 g
• C) 0.0 678 g
• D) 0. 136 g

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Concepts and principles developed to explain and predict behavior and mental processes.

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Medication used to treat mood disorders such as bipolar disorder, helping to prevent extreme shifts in mood.