Chemistry Week 14 Skills Test

Name _______________________

You must set up the problem and cancel units. Circle your final answer.

1. How much DDT, C₁₄H₉Cl₅ , is needed to make fifty liters of 0.25M insecticide solution?

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2. An 8 ounce glass of orange juice contains 6 x 10 ^-5 grams of Vitamin C, C₆H₈O₆. What is the Vitamin C concentration in orange juice? (HINT: 1 ml = 0.03 fluid oz)

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3. Calculate the molarity of a 1500cm³ solution that contains 200 grams of magnesium chloride.

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4. Calculate the mass of NaCl needed to make 750ml of 2.50M solution.

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5. Given a 0.25M FeCl₂ solution, how do you make 250ml of 0.015M iron (II) chloride?

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