Final answer:
The molar mass of glucose is 180.0 g/mol. In a 12 oz can of regular soda, which contains 39 g of glucose, there are 0.2167 moles of glucose.
Step-by-step explanation:
Unit Conversions and Molar Mass Calculation
To address the obesity concerns related to sugar consumption, let's consider the example of a 12 oz can of regular soda, which contains 39 g of glucose (C6H12O6). First, we calculate the molar mass of glucose.
Using atomic masses (rounded to the nearest tenth):
• Carbon (C): 12.0 amu
• Hydrogen (H): 1.0 amu
• Oxygen (O): 16.0 amu
The molar mass of glucose is calculated as:
(6 × 12.0) + (12 × 1.0) + (6 × 16.0) = 72.0 + 12.0 + 96.0 = 180.0 g/mol
Next, we determine how many moles of glucose are in 1 can of soda:
39 g / 180.0 g/mol = 0.2167 moles (rounded to four significant figures)