Chemlab Week 1

Satisfactory Essays
628 Words
Grammar
Plagiarism
Writing
Score
Chemlab Week 1
Name: Marquetta Turner
Lab, Week #1

BALANCE LAB

Introduction: Using the direct weighing and weighing by difference methods to find weight and mass of chemicals.

The purpose of this lab was to be familiar with the different balances and methods used to find the weight and mass of chemicals. In the lab it used different types of balances and direct weighing and weighing by difference methods.

In the lab we used the centigram balance, the mass in grams and slugs to determine both weighing and weighing by difference. Also using an electronic balance the weigh of a slug will determine by using direct weighing and weighing by difference as well. Plus the mass of two unknown weights will be determined using a electronic balance with the same weighing techniques.

When using the copper slug the mass was determine accurately by both direct weighing and by weighing by difference. But when using the electronic balance the mass was more accurate and the electronic balance can determine mass to three decimal places while centigram balance can only determine mass to two decimal places.

Procedure

The slug was used by measuring of different methods, the slugs was placed in a 100ml beaker and weighed then the slug was removed and the beaker was weighed. The measurement of the beaker and slug was recorded, and then the beaker alone was weighed and subtracted from the first measurement giving the weight of the slug by difference. Both results were giving from using first centigram balance and second electronic balance. Both methods of direct weighing and difference by weighing were used when finding the weight of the unknown object. It was done by placing the unknown slug into the beaker and weighing both the slug and the beaker, then removing the slug and weighing the beaker alone. The beaker weight was subtracted from the combined weight measurement in the weight of the unknown slug by difference. The slug was weighed by different method and placed directly on

You May Also Find These Documents Helpful

• Good Essays

Add 50 milliliters of the solution you want to test to the beaker and record its mass. The mass of the solution is equal to the total mass minus the mass of the beaker.…

• 356 Words
• 2 Pages
Good Essays
• Good Essays

1. Place a plastic measuring trough on top of the digital balance, and press the "tare/on" button so that the mass of the trough will be "ignored." The digital balance should read "0.000 g" after this step.…

• 1598 Words
• 7 Pages
Good Essays
• Good Essays

Aim – To compare the mass of the products of a chemical reaction with the mass of its reactants.…

• 624 Words
• 3 Pages
Good Essays
• Powerful Essays

In this experiment, we first measured the mass of an empty flask using the balance for our…

• 1294 Words
• 6 Pages
Powerful Essays
• Good Essays

Take some tiny pellets of aluminum and put it on top of the measuring balance and record the mass (grams).…

• 1478 Words
• 6 Pages
Good Essays
• Good Essays

Synthesis Lab

• 435 Words
• 2 Pages

At the beginning of the lab, a micro test tube with and without glass wool was weighed on an analytical balance. A watch glass, crucible, and lid were also weighed. The masses of all the materials needed for the lab were recorded in the data tables of the laboratory notebook. An unknown vial was obtained from the teacher and set to zero on the balance. About 0.6 grams of the unknown was measured into the micro test tube. The analytical balance was set to zero again and then the test tube with the unknown was measured and recorded.…

• 435 Words
• 2 Pages
Good Essays
• Good Essays

1. To the best of your ability, weigh out 3.75 grams of BaCl2 and 6.125 grams of AgNO3 on separate weigh boats…

• 1224 Words
• 5 Pages
Good Essays
• Good Essays

Equipment: a pvc pipe and fur or wool, a metric ruler, a protractor, two pith balls on a stand as in figure 1. Your teacher will tell you the mass of your pith balls.…

• 677 Words
• 3 Pages
Good Essays
• Good Essays

Find the atomic mass of the element in the substance. You can find atomic masses on the periodic table. Ex. Lithium's atomic mass is 6.9 grams (round if you need to)…

• 736 Words
• 3 Pages
Good Essays
• Good Essays

Answer: When weighing smaller amounts weighing paper is used and in weighing larger amounts weighing boats are used…

• 1433 Words
• 6 Pages
Good Essays
• Good Essays

Conclusion: Weighing all the substances as one should weight the same as weighing them each separate and adding them together.…

• 280 Words
• 2 Pages
Good Essays
• Good Essays

Place a plastic measuring trough on top of the digital balance, and then zero the balance (press the tare button) so that the mass of the trough will be “ignored” and will not be added to the total mass measured by the balance.…

• 713 Words
• 3 Pages
Good Essays
• Satisfactory Essays

Raccoon

• 413 Words
• 2 Pages

First of all, a flask was taking out and filled in with 15ml of water. The mass of the flask & water was determined and recorded. Then, an Alka Seltzer tablet was filled in the water. After a while, placed the flask & water & Alka Seltzer tablet on to the balance pan, the mass of the whole system was determined. This procedure was for the open system.…

• 413 Words
• 2 Pages
Satisfactory Essays
• Satisfactory Essays

Procedure: I used a measuring device such as a ruler, balance or volumetric flask to determine the values for each measurement.…

• 1411 Words
• 11 Pages
Satisfactory Essays
• Good Essays

To do this lab we weighed Copper. Than we weighed the iron nail. Next, we put the nail into the hot copper and sit for 10 minutes. Finally we weighed the filter paper and recorded the mass in our data table.…

• 1074 Words
• 5 Pages
Good Essays