Question

Question 2: Unit Conversions (11 points) Obesity in American youth is becoming a major concern. Eating too much sugar adds to this problem. Sugar lies hidden in many foods that are popular among teens. Regular (sugared) soda, for example, contains 39 g of sugar in 1 12 oz can. Use this information to answer the following questions. (Round all atomic masses to the nearest tenth unit.) a. What is the molar mass of the sugar called glucose (C6H12O6 )? (2 points) b. How many moles of sugar (C6H12O6 ) are in 1 can of soda? (2 points)

Answer 1

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)