How many grams of glucose be dissolved to make one litre solution of `10%1` glucose:

Options

A. `10g`
B. `180g`
C. `100g`
D. `1.8g`

Explanation

To determine how many grams of glucose need to be dissolved to make a 1-liter solution of 10% glucose, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Percentage Concentration**:
A 10% glucose solution means that there are 10 grams of glucose in every 100 mL of solution.

2. **Convert Liters to Milliliters**:
Since we need to prepare a 1-liter solution, we convert liters to milliliters:
\[ 1 \text{ liter} = 1000 \text{ mL} \]

3. **Use the Unitary Method**:
We know that in 100 mL of solution, there are 10 grams of glucose. We want to find out how many grams are in 1000 mL (1 liter).
\[ \text{If } 100 \text{ mL contains } 10 \text{ grams, then } 1000 \text{ mL will contain } x \text{ grams.} \]

We can set up a proportion:
\[ \frac{10 \text{ grams}}{100 \text{ mL}} = \frac{x \text{ grams}}{1000 \text{ mL}} \]

4. **Cross-Multiply to Solve for x**:
\[ 10 \text{ grams} \times 1000 \text{ mL} = x \text{ grams} \times 100 \text{ mL} \]
\[ 10000 = 100x \]

5. **Isolate x**:
\[ x = \frac{10000}{100} = 100 \text{ grams} \]

6. **Conclusion**:
To prepare a 1-liter solution of 10% glucose, you need to dissolve **100 grams of glucose**.

### Final Answer:
100 grams of glucose.

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