# How to Make Liquid Glucose

Glucose is a simple sugar also known as blood sugar, corn sugar and grape sugar. Living cells use it as a source of energy and it's one of the primary products of photosynthesis. Pure glucose is a solid at room temperature but you can make a liquid solution of glucose by adding water.

This is a common experiment in high school chemistry laboratories.

• Glucose is a simple sugar also known as blood sugar, corn sugar and grape sugar.

Determine the concentration of the glucose solution you wish to make. The concentration of a glucose solution is the mass of the glucose in the solution divided by the total mass of the solution. Assume that you wish to make a 24 per cent glucose solution for this example.

Select the mass of the glucose solution you wish to make. This will be the total mass of the glucose and the water. You'll make 100 grams (g) of a 24 per cent glucose solution in this example.

Measure the mass of glucose that you'll need. You know that x/t = c where x is the mass of the glucose, t is the total mass of the solution and c is the desired concentration. Therefore, x = tc = (100 g)(0.24) = 24 g for this example. Use a scale to weigh 24 g of glucose.

• Select the mass of the glucose solution you wish to make.
• You know that x/t = c where x is the mass of the glucose, t is the total mass of the solution and c is the desired concentration.

Calculate the mass of the water to use. Subtract the mass of glucose from the total mass of the solution. The equation 100 g solution -- 24 g glucose = 76 g water shows that you need to pour 76 g of water into the beaker.

Add 24 g of glucose to 76 g of water and stir thoroughly until the glucose is completely dissolved. This will provide 100 g of a 24 per cent solution of glucose.
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