MCAT Science Qbook #1257

jkwdo12
Posts: 12
Joined: Tue Jun 06, 2017 10:18 pm

MCAT Science Qbook #1257

Postby jkwdo12 » Tue Jun 26, 2018 7:00 pm

I think I understand most of it except the part where it says 23mol of total products/sucrose according to the explanation in the back. Looking at the equation, I only see 12 mol of gas product... I feel like I am missing something.... Can someone clarify this? Thanks:) ;)
NS_Tutor_Alex
Posts: 35
Joined: Fri Jul 21, 2017 4:11 pm

Re: MCAT Science Qbook #1257

Postby NS_Tutor_Alex » Thu Jun 28, 2018 4:26 am

Hi jkwdo12,

Thank you for the question, you found a typo! The equation relating to the question should show water in the gaseous state, not the liquid state. Since we know that 1 mole of sucrose will result in the formation of 12 moles of carbon dioxide and 11 moles of water, that means 23 total moles of gas will be produced. When we consider just how much sucrose is being reacted, we see that there are two moles being reacted so we double our products giving us 46 total moles of gas.

Hope that helps!

Alex
jkwdo12
Posts: 12
Joined: Tue Jun 06, 2017 10:18 pm

Re: MCAT Science Qbook #1257

Postby jkwdo12 » Thu Jun 28, 2018 8:12 pm

Thanks!

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