# Kasdjfa; Lksdjfafadf Essay

What does molarity mean? Number of moles of solute 1 liter solution 2. What is the molarity of a solution that contains 4. 53 moles of lithium nitrate in 2. 85 liters of solution? 4. 53 mol LiNO3 = 1. 59 M LiN03 2. 85 L soln 3. What is the molarity of a solution that contains 0. 00372 moles hydrochloric acid in 2. 39 x 10-2 liters of solution? 0. 00372 mol HCL = 0. 156 M HCL 2. 39×10-2 L soln 4. A flask contains 85. 5 g C12H22O11 (sucrose) in 1. 00 liters of solution. What is the molarity? 85. 5g sucrose x 1 mol sucrose = 0. 250 M sucrose 1.

00 L soln 342. 4g sucrose 5. A beaker contains 214. 2 grams osmium (III) fluoride in 0. 0673 liters of solution. What is the molarity? 214. 2g OsF3 x 1 mol OsF3 = 12. 9 M OsF3 0. 0673 L soln 247. 23g OsF3 6. Calculate the molarity if a flask contains 1. 54 moles potassium sulfate in 125 ml of solution. 1. 54 mol K2SO4 = 12. 3 M K2SO4 0. 125 L soln 7. A chalice contains 36. 45 grams ammonium chlorite in 2. 36 liters of solution – calculate the molarity. 36. 45g NH4ClO2 x 1 mol NH4ClO2 = 0. 181 M NH4ClO2 2. 36 L soln 85. 50g NH4ClO2 8.

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What is the molarity of a solution that contains 14. 92 grams magnesium oxalate in 3. 5 ml of solution? 14. 92g MgC2C4 x 1 mol MgC2C4 = 36. 4 mol MgC2C4 0. 00365 L soln 112. 32g MgC2C4 9. What mass of lithium phosphate would you mass to make 2. 5 liter of 1. 06 M lithium phosphate solution? 2. 5 L soln x 1. 06 mol Li3PO4 x 115. 79g Li3PO4 = 310g Li3PO4 1 L soln 1 mol Li3PO4 10. If you evaporated 250. mL of a 3. 5 M solution of iron (II) nitrite, what mass of iron (II) nitrite would you recover? 0. 250 L soln x 3. 5 mol Fe(NO2)2 x 147. 86g Fe(NO2)2 = 130g Fe(NO2)2 1 L soln 1 mol Fe(NO2)2 11. A chemist has 4. 0 g of silver nitrate and needs to prepare 2. L of a 0. 010 M solution. Will there be enough silver nitrate? If so, how much silver nitrate will be left over? 2. 0 L soln x 0. 010 mol AgNO3 x 169. 88g AgNO3 = 3. 4g AgNO3 Used/Needed 1 L soln 1 mol AgNO3 There is enough silver nitrate available. 4. 0g AgNO3 – 3. 4g AgNO3 = 0. 6 g AgNO3 12. A rabbit pours 500. 00 mL of a 3. 0000 molar solution of sodium hydroxide into a 2. 000 liter volumetric flask and fills the flask up with water. What is the new molarity of the solution? 0. 50000 L soln x 3. 0000 mol NaOH = 1. 5000 mol NaOH 1 L soln 1. 500 mol NaOH = 0. 75000 M NaOH 2 L soln