04 HW - Dillutions

04 HW - Dillutions - Name: _ Date: _ WKST #8: Molarity and...

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Name: __________________________________________ Date: ____________ WKST #8: Molarity and Dilutions (40 points) Period: ___________ Follow the procedure below to answer each of the long answer questions to receive full credit. Write the formula – it’s alright to use abbreviations, just make sure they make sense! Substitute the appropriate numbers Solve the problem and include the appropriate units Place a BOX around your answer so I can find it easily 1. If I have 340 mL of a 0.50 M sodium bromide solution, what will the concentration be if the entire sample is diluted to a final volume of 750 mL? 2. If I dilute 250 mL of 0.10 M ammonium hydroxide solution so that the final concentration is 0.25 M, what is the volume of the diluted solution? 3. If I leave 750 mL of 0.50 M magnesium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates, what will the new concentration of the magnesium chloride solution be? 4. To what volume would I need to add water to the evaporated solution in problem 3 to get a solution
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04 HW - Dillutions - Name: _ Date: _ WKST #8: Molarity and...

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