inaccurate.
But why do you think it was inaccurate? Give your explanation.
23 Matching Annotations
- Apr 2025
-
online.clackamas.edu online.clackamas.edu
-
-
mass of MgO
Can you add the formula/steps how you convert mass to moles?
-
2ππ(ΰ―¦) + πΰ¬Ά(ΰ―) β 2πππ(ΰ―¦
This should be Mg (s) +1/2 O2 (g) ---> MgO (s)
-
Equation 3.
Explain equation 3 as you did with equation 1
-
produces a positive q value.
What does that positive value means?
-
negative q value
What would that negative value mean?
-
ab #6 R
Needs an actual titlle besides Lab 6
-
-
hypothes.is hypothes.is
-
Needs title
-
- Jan 2025
-
online.clackamas.edu online.clackamas.edu
-
This experiment required a metal rod, a 25 mL graduated cylinder, and a balance.
And a beaker and pipette
-
Density of solids and liquids
A tittle doesn't need to be added here
-
-
online.clackamas.edu online.clackamas.edu
-
Figure
It needs to be cleaner, take the grit lines from it.
-
The data was recorded, and the average densities werecalculate
How were they calculated?
-
A calibration standard of 2% sugar was assigned from a total of six standards: 0, 2, 4, 8and 16 percent sugar
Great job mentioning the different calibrations and the one assigned.
-
A graduated cylinder was filled approximately half-way with tap water and the volumewas measured. The metal rod was then gently slid into the graduated cylinder, the new watervolume was measur
The methods should have the information of rinsing/cleaning the cylinder and pipette before mesuaring again.
-
Methods
The general writing is clear and in the correct tense and style. Great job there
-
-
online.clackamas.edu online.clackamas.edu
-
Density of solids and liquid
The graph is also missing the axes names and the formula can be placed more to the left.
-
Put the metal rod on the scale and record its weight. Put it in half-full flask and record the volume.Calculate the density of the rod using d=m/v
This is mising a lot of information related to the steps, names, and conditions of the materiasl. Plus the tense that has been written is not passive voice/past tense.
-
-
online.clackamas.edu online.clackamas.edu
-
Figure 1
Figure one is missing the axis description.
-
To begin use a 125 mL Erlenmeyer flask and fill it with about 50 mL of 2% sugar liquid.Measure a 50 mL beaker by using a balance, record value. Then using that 50 mL beaker and a10 mL volumetric pipette plus pipette filler, fill the 10 mL volumetric pipette and filler to 10.00 mLof 2% sugar. Put the liquid in the volumetric pipette into the 50mL beaker that was previouslymeasured. Next measure and record the mass of the beaker using the balance. This processwas repeated 2 more times for a total of 3 trials Then using a cranberry juice using the samesteps and doing a total of 3 trials. Once more do the same steps using root beer for a total of 3trials.
This is also in the wrong verb tense, it should be written in passive voice and it is missing that the pipet should have been rinse before measurent again.
-
Using a balance, place weigh paper on it and zero the scale. Using that measure a metalrod and record measurement. T
This is word in a weird way and in the wrong tense.
-
To calculate the density of a metal rod, the mass and volume of the metal rod needed tobe found.
The wording is weird, maybe it can be said "To calculate the density of a metal rod, the mass, and the volume of the metal rod needed, the followinf steps were used."
-
e balance you will use the density
Verb tense should still be past while explaining the steps to calculate. Myabe something like: To calculate the volume the formula d=m/v was used.
-
mass found by using the balance you will use the density
Wrong verb tense used, it should continue with passive voice. Something like this: mass found by the used of equation d=m/v.
-