## Calculate the weight of 25ml of Hydrochloric Acid whose density is 1.18g/ml:

**A.**29.500g**B.**2.950g.**C.**0.295g.**D.**295.00g.**D.**None of the above.

### The correct answer is A. 29.500g.

Here's how to calculate the weight of 25ml of Hydrochloric Acid with a density of 1.18g/ml:

#### Formula:

**Weight**= Volume × Density

#### Calculation:

- Weight = 25 ml × 1.18 g/ml
- Weight = 29.5 g

Therefore, the weight of 25 ml of Hydrochloric Acid with a density of 1.18g/ml is 29.5 grams.

### the Calculation of Hydrochloric Acid Weight:

#### Understanding Density and Weight:

**Density:**A measure of how much mass is contained in a given volume of a substance. It is expressed in units of grams per milliliter (g/ml).**Weight:**The force exerted on an object due to gravity. It is expressed in units of grams (g).

#### The Formula for Calculating Weight:

**Weight**= Volume × Density

This formula states that the weight of a substance is equal to its volume multiplied by its density.

#### Applying the Formula to Hydrochloric Acid:

In this case, we have:

**Volume**= 25 ml**Density**= 1.18 g/ml

**Weight**= 25 ml × 1.18 g/ml**Weight**= 29.5 g

Therefore, the weight of 25 ml of hydrochloric acid with a density of 1.18 g/ml is 29.5 grams.

#### Additional Considerations:

**Accuracy of measurements:**The accuracy of the calculated weight depends on the accuracy of the volume and density measurements.**Temperature and pressure:**The density of a substance can vary slightly with changes in temperature and pressure.**Units:**Ensure that the units for volume and density are consistent (e.g., both in milliliters and grams per milliliter).

#### Practical Applications:

The ability to calculate the weight of a substance based on its volume and density is essential in various fields, including:

**Chemistry:**Determining the concentration of solutions.**Physics:**Calculating the mass of objects with irregular shapes.**Engineering:**Designing and manufacturing products with specific weight requirements.**Everyday life:**Understanding the weight of common substances.

By understanding the relationship between volume, density, and weight, you can solve a variety of practical problems and calculations.

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Pharma