How many grams of sodium bicarbonate (NaHCO3) can a 25.0oC saturated solution have if 150.0 mL of H2O is used as the solvent? Use table below.

Question

How many grams of sodium bicarbonate (NaHCO3) can a 25.0oC saturated solution have if 150.0 mL of H2O is used as the solvent? Use table below.

Answer 1

Hi Aiko L.,

You might want to check your queries after you submit them, since crucial parts may not get onto the actual entry.(!!!) Here, you reference a table, which is not included. What would be of interest in the table might be, are entries in terms of molar, or as molal? If you don't know the difference, you need to look it up fast!

If the entries are in molal, then they're already candy-coated into your working units, you just need to convert 150.0 mL H2O at 25C into kg water, and set up your equation.

If, on the other hand, entries are in molar, then you will need to calculate the amounts of sodium bicarbonate and water (by difference) respectively, given the molarity and the density of the particular 25.0C entry, and ratio that out appropriately to use 150.0 mL-worth of water mass.

--Cheers, --Mr. d.