Final answer:
There are 500 grams of glucose in 1 litre of a 50% glucose solution.
Step-by-step explanation:
To find the mass of glucose in 1 litre of a 50% glucose solution, we need to convert the percentage to grams. A 50% glucose solution means that 50 grams of glucose is dissolved in 100 grams of solution. Since 1 litre of solution is equal to 1000 grams, we can calculate the mass of glucose as follows:
Mass of glucose = (50 grams / 100 grams) × 1000 grams = 500 grams
Therefore, there are 500 grams of glucose in 1 litre of a 50% glucose solution.