From the invisible to the visible world and back...

Hello everyone, in this blog I will write about ph-meter.

This instrument is utilized -as the name stand for- for to size the pH of the foods -in this case- since related with my career. Is one of the instruments more important in my carrear Food Engineering, because allows know the acidity of the foods and elaboration of these same, and are important for its conservation, as  generally by decreasing the value of pH of a product can be increase the period of conservation.

I choose the ph-meter, because is a incredible instrument for the industry alimentary in the field preservation and elaboration foods. I don't know exactly which changes could have this object to improve, mainly these serve for what I said earlier.

I meet the ph-meter in the class of General Chemistry Laboratory, we had that work with this instrument and size pH of some compounds.

In the human welfare have might a great impact since is a important method for detect if the aliment is sure eat, especially in the meats or vegetables or also in the milks or different dairy, to prevent diseases.

Some the advantages that has are digital, it's more precise than indicator paper when the pH reading is made, and gives exact measurement. And the disadvantages are that has a very sensitive electrod, the pH meter is a long-term investment for gaining accurate results and it needs to be cleaned regularly to avoid contamination.

Person/Expert you admire.

My parents are the persons that more I admire, but principally I will write about my mother.

Alejandra Marcela Valdés is her name, she born in the year 1968, is the older sister of three siblings.  She married in year 94' with a incredible man, my father Octavio. She had four children, my siblings Constanza and Octavio that are twin, I and my younger brother Felipe. Here started all...

My mother studed a professional career with much effort, but when received notice of her pregnancy and that they were two, all change. My parents were very happy and my mother not doubts in leave it all for to raise their children. That has been his true vocation. 

After a few years that passed, my mother could not work in what studied, because did not have laboral experience, and that has worried her.

We do not have a good economic situation, my father work, but with three children studing in the university and one in the school already ending is complicated. My mother has had jobs, where the job situation has been difficult and has not been very well, but despite everything, it gives us to understand that everything is fine and continues to give us all his love.

I admire her, because she is a super woman, dedicated one hundred percent to her family, brave, hardworking, dreamy a incredible woman, and among many other great things. 

The most enjoyable subject ...

For me one of the subject more enjoyable has been General Chemistry Laboratory, because in classes we worked with many chemical compounds, analysing their reactions, calculated their pH, the heat that was released by the same reactions particularly, in general we create many crystal and among other things. I liked very this subject, because always it caught my attention work in a laboratory as if it were a crazy scientist, blend different chemical compounds and to watch how wonderful of reactions.

In itself, General Chemistry Laboratory is a practical subject, since theoretical subject is General Chemistry Two that is the complement.

With the naked eye, I think that this subject is interesting because is a class more dynamic for all student, where I can appreciate what really happens with what is studied in the theoretical class.

In the laboratory, we work student and teacher that teach us, but also for everything to work fine, lab technician and assistant work, who help us solve doubts of the practitioner.

The team of teachers, assistants and lab technicians are important because are organized for work properly and teach us in the best way.

The subject is important, because is part of the fundamental basis of chemistry. Approximately we were more of one hundred student, I believe, jaja really I don't know.

Eventually, some of the main contents that we saw were: reactions velocity, constant of solubility, acidity, basicity, thermodynamics and among others contents.