[mary01]

Hello, everyone! I'm on working on a big list of problems on organic chemistry but I kinda struggled on 2 and I have no ideas where to start from.

What is the toluene mass necessary in order to obtain 15g p-nitrotoluene of purity 68,5% if the reaction efficiency/yield is 60%?

Oxidating 20g of toluene of 92% purity we're getting 20g of benzoic acid of 97,6% purity. The efficiency of reaction is? a.100% b.94.26% c.90% d.80% e.75%

I would really need your help as these are not homework or something else.

[sjb]

Hello, everyone! I'm on working on a big list of problems on organic chemistry but I kinda struggled on 2 and I have no ideas where to start from.

What is the toluene mass necessary in order to obtain 15g p-nitrotoluene of purity 68,5% if the reaction efficiency/yield is 60%?

Oxidating 20g of toluene of 92% purity we're getting 20g of benzoic acid of 97,6% purity. The efficiency of reaction is? a.100% b.94.26% c.90% d.80% e.75%

I would really need your help as these are not homework or something else.

Can you define reaction efficiency? I'm not completely familar with this term.

[mary01]

yield of reaction or at least that is the google translate version. it's about what gets in and what reacts

[sjb]

OK, so what are the units of the purities you have provided? w/w? v/v? mol/mol? Something else?

[Mitch]

I would start by calculating how many grams of actual p-nitrotoluene you have in the end.