Weight has a close relationship with which of the following measurements?

• A. Molarity
• B. Temperature
• C. pH
• D. Density

Answer: (D)

Verified step by step guidance

1. Understand the concept of weight: Weight is the force exerted by gravity on an object and depends on the mass of the object and the gravitational acceleration.
2. Review the given options: Molarity (concentration of a solution), Temperature (measure of thermal energy), pH (measure of acidity/basicity), and Density (mass per unit volume).
3. Analyze the relationship between weight and each option: Weight is directly related to mass, and density relates mass to volume, so density connects mass (and thus weight) to volume.
4. Recognize that molarity, temperature, and pH do not directly relate to weight, as molarity is about concentration, temperature about energy, and pH about hydrogen ion concentration.
5. Conclude that density is the measurement most closely related to weight because it involves mass, which determines weight under gravity.