A fast-food item contains 544 nutritional calories. How do you convert this energy to joules?

The biuret solution can only test for . If the food sample is put into a biuret solution and the solution turns purple/violet, then it is an indication that proteins...

Calories per gram ($"Cal/g"$) implies calories per gram associated with those calories. A change-in-food mass is associated with the $"Cal/g"$ units, and just like a change in position in $"m"$...

You have 960 J in that many calories. To go from calories to Joules, or vice versa, use the fact that 1 calorie is equivalent to 4.184 J. Use...

So, $148 " calories"xx4.1854 " Joule calorie"^-1$ $=$ $??$ $"Joule"$

So, we do the conversion: $500cancel" Calorie"$ $xx$ $4.1854$ $J*cancel"calorie"^-1$ $=$ $?? J$

The food Calorie (capital "C") is actually a kilocalorie ($1 xx 10^3$ calories)! Why would someone do this? Well, probably because it takes about 2 megacalories ($2 xx 10^6$) to...

By definition, $"1 cal"$ is the approximate amount of energy needed to raise the temperature of $"1 g"$ of water by $1^@ "C"$ at $"1 atm"$. In thermochemistry, this...

Step 1. Determine the conversion formula $1$ Joule $=0.000239$ kilo calories Step 2. Express as conversion factors $(1" Joule")/(0.000239" kcal")$ or $(0.000239" kcal")/(1" Joule")$ Step 3. Multiply given value...

When making a measurement, record what you see on the instrument, plus a final estimated digit. So the last digit in a measurement should be an estimate.

To identify the independent and dependent variables you need to first identify what the variables are. Then you ask yourself, which variable will be affected if anything is changed? For...