Can you please help me. The question is related to the procedures and I have pro
ID: 274594 • Letter: C
Question
Can you please help me. The question is related to the procedures and I have provided them for you if you want to read them. Procedures Beaker Accuracy: 1. Tare a dry 150mL beaker on a balance. 2. Carefully use a dry 100mL beaker to measure 20mL of water. Pour the water into the 150mL beaker 3. Record the weight of the water in Table 1 4. Tare üne aiance. 5, Repeat steps #2-4 four more times for a total of 5 trials. 6. Complete the calculations in Table 1. Graduated Cylinder Accuracy: 1. Tare a dry 150mL beaker on a balance. 2. Carefully use a dry 25mL graduated cylinder to measure 20mL of water. Measure from the bottom of the meniscus. Pour the water into the 150mL beaker. 3. Record the weight of the water in Table 2. 4. Tare the balance. 5, Repeat steps #2-4 four more times for a total of 5 trials. e. Complotc tho caloulations in Tablc 2 Micropipette Accuracy: 1. Iare a dry 1bUmL beaker on a balance. 2. Obtain a P1000 micropipette and set it to measure 1000uL or 1mL. Obtain a tip for the micropipette by pressing firmly straight down. 3. Press the button on the top of the pipette. Notice that there are two stops: a. The first stop is when you first feel resistance against your thumb b. The second stop is when you press the button all the way down 4. Holding the micropipette in your dominant hand with a tip attached, press with your thumb down to the first stop. 5. Keeping your thumb at the first stop, place the tip about 1-3 mm into a beaker of water 6. Slowly release the plunger all the way up and observe water fill the micropipette tip. 1000??or 1 mL of water should be drawn into the tip. 7. Flace the ip into the 150 mi beaher so thai the plastic ip mahes contact with te glass 8. Slowly and gently press your thumb down to the first stop. Look at the plastic tip and see if any water remains inside. If so, press down to the second stop. "only press down to the second stop if necessary - the second stop creates a lot of pressure that can sometimes cause liquid to be aspirated up the plastic tip 9. With the plunger still depressed, remove the pipette tip from the beaker. Release the plunger and use the tip eject button to discard the plastic tip. 10.Record the weight of the water in Table 3. 11. Tare the balance. 12. Repeat steps #2-11 four more times for a total of 5 trials. 13.Complete the calculatione in Table3Explanation / Answer
The only effect temperature can have on the measurements of the water is it might give an inaccurate measure of the water present in the glassware. The volume of water that is put in the glassware might differ than what it should actually be. Due to increase in the temperature there is a high possibility that that the amount of water that is marked for the glassware might reduce due to evaporation in presence of the increasing temperature.