Final answer:
To find the mass of sodium bicarbonate added, multiply the mass of baking soda by its molar mass. However, it's not possible to calculate the mass of acetic acid or determine the pH without information about the volume of vinegar.
Step-by-step explanation:
In this question, the student is asking about the mass of baking soda and vinegar. Baking soda is sodium bicarbonate (NaHCO3) and vinegar is acetic acid (CH3COOH).
To find the mass of sodium bicarbonate added, you can multiply the mass of baking soda (5.0g) by its molar mass (84.007g/mol). This would give you 0.51g of sodium bicarbonate.
Since vinegar is a 5.0% by mass solution of acetic acid, you can calculate the mass of acetic acid by multiplying its volume by its density (1.007g/cm³). However, the question doesn't provide any information about the volume of vinegar, so it's not possible to calculate the mass of acetic acid or find the pH.