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03-07-2008, 10:15 AM
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| calling all chemistry experts to help me on molarity problems!?
1.How many grams of Coppor(II) sulfate are needed to make 2.50 L of 0.125M solution? 2.What is the molarity of 20.00G NaOH dissolved in 1.50 L of soultion? 3. what Volumne of soultion can b e made by adding 35.5g NaCl to enough water to make a 1.50M souliton. 4.What is the molarity of 0.625 moles of KOH dissolved in a solution of volume 2.5 liters? 5. How many moles are needed to make 750mL of 2.50M souliton? 6. what mass of Na2SO4 can be obtained fro 800mL of 0.450M souliton? ** plz help even with one plz dont let me fail plz help me!!      |
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