NaHCO₃ is the active ingredient in baking soda. How many grams of oxygen are in 0.36 g of NaHCO₃?

Question

Quizplus · Accepted Answer

The molecular formula for baking soda is NaHCO3. To find the grams of oxygen in 0.36 g of NaHCO3, first calculate the molar mass of NaHCO3: Na (22.99) + H (1.01) + C (12.01) + 3*O (3*16.00) = 84.01 g/mol. The mass of oxygen in one mole of NaHCO3 is 3*16.00 = 48.00 g. The fraction of the compound's mass that is oxygen is 48.00 / 84.01. To find the mass of oxygen in 0.36 g of NaHCO3, multiply this fraction by 0.36 g: (48.00 / 84.01) * 0.36 g ≈ 0.205 g, or 0.21 g when rounded to two significant figures.

NaHCO3 Is the Active Ingredient in Baking Soda

NaHCO₃ Is the Active Ingredient in Baking Soda