Explain jhow you would make 400 milliliters of an 18% solution from dry glucose and distilled water.
To make a 400 milliliter solution of 18% concentration from dry glucose and distilled water, you will need to follow these steps:
1. Determine the amount of glucose needed:
To calculate the amount of dry glucose required, you multiply the desired volume of the solution (400 milliliters) by the desired concentration (18%). Since the concentration is given as a percentage, you'll need to convert it to a decimal by dividing it by 100. So, 18% becomes 0.18.
Amount of glucose (in milliliters) = Volume of solution (in milliliters) × Concentration (in decimal form)
Amount of glucose = 400 ml × 0.18
Amount of glucose = 72 grams
Therefore, you'll need 72 grams of dry glucose.
2. Calculate the volume of distilled water required:
The remaining volume of the solution (400ml) after adding dry glucose should be filled with distilled water.
Volume of water (in milliliters) = Volume of solution - Volume of glucose
Volume of water = 400 ml - 72 ml
Volume of water = 328 milliliters
You'll need 328 milliliters of distilled water.
3. Mix the dry glucose and distilled water:
Start by measuring 72 grams of dry glucose using a scale. Add the glucose to a container large enough to hold both the glucose and water. Then, measure 328 milliliters of distilled water using a graduated cylinder or measuring cup. Add the water to the container with the glucose. Carefully stir or shake the mixture until the glucose fully dissolves in the water.
As a result, you will have a 400 milliliter solution containing 18% glucose concentration.