what mass of salt can be produced from the reaction of 3.45 grams of sodium hydroxide and an excess of hydrochloric acid?
1. Write the equation and balance it.
2. Convert 3.45 g NaOH to moles. moles = grams/molar mass.
3. Using the coefficients in the balanced equation, convert moles NaOH to moles NaCl.
4. Convert moles NaCl to grams. g = moles x molar mass.