the energy produced by a snack in an experiment is calculated to be 1,254 j/g. what is the energy of the…

the energy produced by a snack in an experiment is calculated to be 1,254 j/g. what is the energy of the snack in calories/gram? 1000 cal = 1 cal 1,254 (j/g) = ? (cal/g) remember there are 4.18 joules per 1 calorie.

the energy produced by a snack in an experiment is calculated to be 1,254 j/g. what is the energy of the snack in calories/gram? 1000 cal = 1 cal 1,254 (j/g) = ? (cal/g) remember there are 4.18 joules per 1 calorie.

Answer

Explanation:

Step1: Convert J to cal

Use the conversion factor ( 1\ \text{cal} = 4.18\ \text{J} ). So, ( 1254\ \frac{\text{J}}{\text{g}} \times \frac{1\ \text{cal}}{4.18\ \text{J}} ). [ 1254\div4.18 \approx 299.999\ \frac{\text{cal}}{\text{g}} ]

Step2: Convert cal to Cal

Use the conversion factor ( 1\ \text{Cal} = 1000\ \text{cal} ). So, ( 299.999\ \frac{\text{cal}}{\text{g}} \times \frac{1\ \text{Cal}}{1000\ \text{cal}} ). [ 299.999\div1000 \approx 0.3\ \frac{\text{Cal}}{\text{g}} ] (or more precisely, ( \approx 0.299999 \approx 0.3 ))

Answer:

( 0.3 ) (or more accurately, approximately ( 0.299 ) to ( 0.3 ))