Your lab partner tells you that he has prepared a solution that solution, contai

Question

Your lab partner tells you that he has prepared a solution that solution, contains 1.50 moles of NaOH in 1.50 L of aqueous solution, and therefore that the concentration of NaOH is 1.5 M. (a) Is be correct? (b) If not, what is the correct concentration? In each of the following pairs, indicate which has the higher concentration of I^- ion: (a) 0.10 M BaI_2, or 0.25 M KI solution, (b) 100 ml of o 10 M KI or 200 mL MZnI_2 solution, (c) 3.2M HI solution or a solution made by dissolving 145 g of Nal in water to make 150 mL of solution.

Explanation / Answer

5) by using following formula we can calculate molarity

Molarity = moles / Volume

moles = 1.50

volume = 1.5 L

Molarity = 1.50 / 1.50

Molarity = 1.0 M

so given answer = incorrect

b) correct answer = 1.0 M

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