The density of 50% NaOH solution is about 1.5 g/mL. Calculate the volume of 50% NaOH solution that contains 0.050 mole of NaOH.
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A solution is made by dissolving 20.0 g of HCl in 800.00 mL ofwater. Calculate the pH of the solution. If 0.0400 g NaOH is addedto 100 mL of this HCl solution, what will the pH be after mixingthe 100 ml of HCl solution and the solid NaOH together? Assume theaddition of NaOH does not change the volume. (Molar Mass NaOH=40.00 g/mole : Molar Mass HCl = 36.46 g/mole
A solution is prepared by mixing 0.275 mole NaOH (40.0g/mole)with 189g H2O (18.0g/mole). Its density is 1.061 g/mL.
Determine:
a) the mass % of NaOH
b) the mole fraction of NaOH
c) the molarity
d) the molality