What is the strength (expressed as a percent) of 200 milliliters solution that contains 10 grams of dextrose?

To calculate the strength of a solution as a percentage, you can use the formula:

[ \text{Strength (%)} = \left( \frac{\text{mass of solute (g)}}{\text{volume of solution (mL)}} \right) \times 100 ]

In this case, the strength of the dextrose solution would be:

[ \left( \frac{10 , \text{g}}{200 , \text{mL}} \right) \times 100 = 5% ]

Thus, the strength of the solution is 5%.