Help with exam experiment (1 Viewer)

[line_backer]

What precisely is universal indicator and benedict solution? Which is better in using to find acidity?

How can I incoporate this into an exam experiment to test reactions of different household chemicals with sodium?

 

[Casmira]

Sorry for the dodgyness but I never heard of benedict so I googled it, some guy was trying to find the experiment too see if a apple contains sugar, here it is

Introduction

Fehling's solution (or Benedict's solution) is a chemical indicator for simple sugars such as fructose: C6H12O6. Unlike some other indicators, Fehling's solution does not work a room temperature - it must be heated first.

Aim

To see if apples contain sugar.

Method

1.

Cut up a small piece of apple into a mortar and pistil. Grind it into a pulp.
2.

Carefully pour 1 cm3 of the pulp into a test tube.
3.

Add 5 drops of Fehling's solution.
4.

Heat in a water bath for 3 to 5 minutes.
5.

Observe any changes in the color of the liquid (not the chunks of apple).
6.

When you are finished, clean out the test tube and the mortar & pistil for the next group.

 

[meLoncoLLie]

benedict is used for testing the presence of glucose. it has nothing to do with pH