The First Task You Are Assigned in Your Summer Laboratory

question 39

Multiple Choice

The first task you are assigned in your summer laboratory job is to prepare a concentrated NaOH stock solution.The molecular weight of NaOH is 40.How many grams of solid NaOH will you need to weigh out to obtain a 500 mL solution that has a concentration of 10 M?

• A)800 g
• B)200 g
• C)400 g
• D)160 g

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