How to use an hydrometer to test sugar content

Описание: You can find this hydrometer at The Science Company. http://www.sciencecompany.com/-P16109...

To measure the amount of sugar in a solution, be it juice, Coca Cola, etc., you use a Brix hydrometer, called Brix as the food industry uses the term to designate the sugar percentage contained in a liquid. The hydrometer is placed to float in a solution, and the point at which the liquid's surface touches the stem of the inserted hydrometer incidates the percentage of sugar in the liquid.

What you need.
• BRIX hydrometer, range 0-35 degrees
• Graduated cylinder, 500ml, to contain the liquid

The Brix scale gives a direct reading of grams of sugar per 100 grams of pure water. So, for example, say a 20oz (591ml) bottle of root beer gives a measurement of 12 Brix. How much sugar in the entire bottle? Here is the equation: 12g/100ml = Xg/591ml. Solving for X gives X=70.92g sugar.
Tips on using the Hydrometer.

Soda should be degassed before making a measurement. The tiny bubbles in carbonated beverages tend to stick to the hydrometer and add unwanted buoyancy. You can degas your soda sample with gentle heating or just leaving the soda out until it goes "flat". Be sure the soda is at room temperature before taking a reading. Hydrometers are most accurate when used at the calibrated temperature marked on the scale. Most hydrometers sold by the Science Company are for use at 20°C (68°F).