Question

9) Calculate the number of moles of sulfuric acid that is contained in 250 mL of 0.500 M sulfuric acid solution. 10) 0.450 moles of sodium nitrite are needed for a reaction. The solution is 0.300 M. How many mL are needed? 11) What mass (in g) of NH3 must be dissolved in 475 g of methanol to make a 0.147 m solution? 12) Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH3OH (d = 0.792 g/mL) and 387 mL of CH3CH2CH2OH (d = 0.811 g/mL). 13) A solution is prepared by dissolving 38.6 g sucrose (C12H22O11) in 495 g of water. Determine the mole fraction of sucrose if the final volume of the solution is 508 mL. 14) A solution is prepared by dissolving 91.7 g fructose in 545 g of water. Determine the mole fraction of fructose if the final volume of the solution is 576 mL.

          9) Calculate the number of moles of sulfuric acid that is contained in 250 mL of 0.500 M sulfuric
acid solution.

10) 0.450 moles of sodium nitrite are needed for a reaction. The solution is 0.300 M. How
many mL are needed?

11) What mass (in g) of NH3 must be dissolved in 475 g of methanol to make a 0.147 m
solution?

12) Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH3OH (d =
0.792 g/mL) and 387 mL of CH3CH2CH2OH (d = 0.811 g/mL).

13) A solution is prepared by dissolving 38.6 g sucrose (C12H22O11) in 495 g of water.
Determine the mole fraction of sucrose if the final volume of the solution is 508 mL.

14) A solution is prepared by dissolving 91.7 g fructose in 545 g of water. Determine the mole
fraction of fructose if the final volume of the solution is 576 mL.

$9) Calculate the number of moles of sulfuric acid that is contained in 250 mL of 0.500 M sulfuric acid solution. 10) 0.450 moles of sodium nitrite are needed for a reaction. The solution is 0.300 M. How many mL are needed? 11) What mass (in g) of NH3 must be dissolved in 475 g of methanol to make a 0.147 m solution? 12) Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH3OH (d = 0.792 g/mL) and 387 mL of CH3CH2CH2OH (d = 0.811 g/mL). 13) A solution is prepared by dissolving 38.6 g sucrose (C12H22O11) in 495 g of water. Determine the mole fraction of sucrose if the final volume of the solution is 508 mL. 14) A solution is prepared by dissolving 91.7 g fructose in 545 g of water. Determine the mole fraction of fructose if the final volume of the solution is 576 mL.$

Added by Kathleen R.

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