How to do an acid titration on guacamole

[redfox]

Hi all

 

I need to determine the amount of acid in guacamole at different pH levels. Our autotitrator has broken so I must do it manually. Problem is I've not done a titration in the last 5 years or so and also, as it's with guacamole, I'm not sure how much to dilute it or what to use as an indicator.

 

Could anyone give me some guidance on the best way of going about this please?

 

Thanks very much:)