grams calculating

Question

grams calculating

anonymous · Answer

Density = mass/ volume

anonymous · Answer

You can convert it to m/ kg or leave it I guess.

annabug · Answer

so it would be 35 / 100 ?

annabug · Answer

@iambatman

anonymous · Answer

Why would you say 100 for the volume?

anonymous · Answer

Calorie implies energy

annabug · Answer

I thought to find the calorie density you can divide the number of calories per serving (I have 1 serving which=100)  by the number of grams in each serving (I have 35 grams in 1 serving)

anonymous · Answer

Oh, I'm not sure about the servings, but density = mass/ volume.

anonymous · Answer

But you're still using calories instead of the volume, you're given the volume already.

unklerhaukus · Answer

calorie density is measured as  
energy[calories] / mass[grams]

annabug · Answer

so I would do 100/35? @UnkleRhaukus

unklerhaukus · Answer

yeah, but you should simplify (maybe to a decimal) and keep the units

annabug · Answer

so I got 2.857 I should simplify that to 3?

annabug · Answer

@UnkleRhaukus

unklerhaukus · Answer

the numbers in the question had a least two significant figures, so the answer should have two significant figures,

unklerhaukus · Answer

i found some courses that measure calorie density as 
energy[calories] / mass[grams]

but also some that use
   energy[calories] / volume[cm^3]

i would probably calculate both values , unless the question specifies which one they want

unklerhaukus · Answer

the numbers will be very different , so make sure you keep the units in the answers

anonymous · Answer

Neat, thanks Rhaukus :) I was going to do some research on "calorie denstiy" last night but fell asleep haha, thanks :).