Final answer:
To make a 35% dextrose solution from a 50ml of 80% dextrose solution, you'll need to add 85.71 ml of water.
Step-by-step explanation:
To make a 35% dextrose solution, you'll need to mix the 80% dextrose solution with water. Let's assume the volume of water needed is 'x' ml. The amount of dextrose in the 80% solution doesn't change, so we can write the equation:
80% of 50ml = 35% of (50ml + x)
Simplifying the equation, we get:
0.8 × 50 = 0.35 × (50 + x)
Solving for x, we find that you'll need to add 85.71 ml of water to the 50 ml of 80% dextrose solution.