Chemistry: Measurement, Density, Lab Safety

Front

What is the definition of density?

Back

Density is defined as the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

Front

What safety equipment should be worn when working with chemicals in the lab?

Back

Safety goggles, gloves, and lab coats should be worn when working with chemicals to protect against spills and splashes.

Front

What is the formula for calculating density?

Back

Front

How do you measure the volume of a liquid using a graduated cylinder?

Back

To measure the volume of a liquid in a graduated cylinder, read the bottom of the meniscus at eye level.

Front

What is the relationship between mass, volume, and density?

Back

Mass is directly proportional to density and volume; as density increases, mass increases if volume remains constant.

Front

What is the volume of a cube with a side length of 3 cm?

Back

Front

What is the significance of lab safety protocols?

Back

Lab safety protocols are essential to prevent accidents, injuries, and exposure to hazardous materials in the laboratory.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

How do you convert milliliters to liters?

Back

To convert milliliters to liters, divide the number of milliliters by 1000. For example, 500 mL = 0.5 L.

Front

What is the purpose of using a balance in the lab?

Back

A balance is used to measure the mass of an object accurately.