Converting Units 1. What molarity equals 10% NaCl? 2. What normality is 0.15% saline? 3. 15 g of NaOH are diluted to 600 mL. What is the concentration of the solution in terms of: a. molarity b. normality 4. Convert the following: a. 5 mg/dL to !g/dL b. 15,250 pg/L to g/mL c. 10 dg/!L to mg/mL d. 500 ng/!L to !g/L e. 2 g/L to ng/!L f. 16 ng/mL to ppm g. 22 ppm to ng/dL

answers

1. 1.71M 2. 0.0256 N 3a. 0.625 M 3b. 0.625 N 3c. 2.5%w/v 3d. 25,000 ppm 4a. 5 X 103!g/dL 4b. 1.525 X 10-11 g/mL 4c. 1 X 106 mg/mL 4d. 5X105!g/L 4e. 2 X 103 ng/!L 4f. 0.016 ppm 4g. 2,200,000

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1. The molecular weight of H2SO4 is 98. A 2 N solution of H2SO4 contains: a. 196 g in 100 mL d. 98g in 100 mL b. 49gin1,000mL e.196gin1,000mL c. 98gin1,000mL 2. How many grams of each of these substances are needed to make a liter of a 6.l N solution? a. AgNO3 c. NH4OH b. Na2CO3 d. H3PO4 3. 3. What is the normality of a 0.2 M H3PO4

answers

1. c 2a. 1,036.3 g 2b. 323.3 g 2c. 213.5 g 2d. 199.3 g 3. 0.6 M

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