How many joules are in 230 Calories?

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 $"m"$...

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

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

It is important to realize that when the term 'nutritional calorie' is used, they mean kilocalorie (= $1000$ calories). It is known that 1 calorie is approximately $4.184$ Joules....

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...

The first things to look for here are non-zero digits, which as you know are always significant. This measurement has a total of $5$ non-zero digits...

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...

I will assume you don't need this solved, but want a starting point since that is what you're asking. To calculate the moles of propanoic acid, we do a simple...