Candy Bar Density Lab - Essay Example

The Projects in this course require special materials. Some of these materials are found in the Chemistry 1 Lab Kit and some will need to be provided by you, the student.

Before doing a project, gather all the items you will need for that specific project and put them in a clear work space. Student Will Supply Materials in Kit pencil balance (for measuring mass) paper calculator soft tissue or paper towelruler (for measuring volume) 2 different kinds of candy bars (any kind that can be split in half) Part A – Procedure (possible 10 points-charts must be filled out correctly)MassVolumeDensityDefinitionThe existence of matter is due to its mass.

It is the measuring quantity of amount of matter. The space occupied by an object is its volume. It is the product of the three dimensions of the object. Density is the ratio of mass over volume. How to find the mass of an object is measured with the help of a weighing scale. The formula for Regular Shaped Objects: Volume = Length X width X HeightFormula: Density = Mass/ volumeUnitsGram, Kilogram (g) (Kg)Cubic meters (m3)Gram/ cubic meters (g/m3)Part B – Analyze (possible 20 points)Directions: Use the balance to record an accurate mass for each candy bar.

Make sure to zero out the balance before each measurement is taken. Use the ruler and calculator to find the volume of each candy bar. Calculate density after you have found mass and volume steps to take for mass:1. Place half of the soft tissue (or paper towel) on the pan of the balance2. Zero out balance with soft tissue (or paper towel) on pan and place unwrapped candy bar on it3. Find the candy bar’s mass to the nearest tenth (0.1) g and record the below steps to find volume:1. Measure using the formula you identified above in part A2.

Calculate to the nearest tenth (0.1) cm3 and record belowDensity of the Whole candy bar #1: Include proper units with each measurement.MassVolumeDensity0.23g1.2 cm30.191 g/ cm3Density of Whole candy bar #2: Include proper units with each measurement.MassVolumeDensity0.18 g2.4 cm30.075 g/cm3Density of half candy bar #1: Include proper units with each measurement.MassVolumeDensity0.11 g0.6 cm30.191 g/cm3Density of half candy bar #2: Include proper units with each measurement.MassVolumeDensity0.09 g1.2 cm30.075 g/cm3Part C – Conclusion (possible 20 points)1.

When finding the volume for half the candy bar which variables did not change and why? The density in each case remained the same for the full candy bar and half candy bar. It is due to the fact, that with the change in the volume, the mass of the candy bar also changed and thus the ratio between the mass and volume remained the same.2. What did you record about the densities of each candy bar? Write complete sentences explaining any similarities or differences that were noted. Both candy bars have lower densities.

The densities of full candy bars and half candy bars remained the same in both two cases. Both the candy bars have higher volumes and lower masses which made the cars less dense. Similarly, if the object has a large mass concerning its volume, it will sink. To float over water, the object should have a density lesser than the density of water (Editions.sciencetechnologyaction.com).4. Water’s density is 1.0 g/cm3. Knowing this information, would either of your candy bars sink or float if placed in water? Explain using complete sentences