How to do a lab report?

Question

I am currently working om my discussion section of it and is it correct how can I improve?

The property of the salt differed from the sand because the salt dissolves in water and sand does not. The property used to separate the sand from the salt was to separate the water and the sand. Before weighing the sand and filter paper, you must wait for the sand to dry if not the water will make the sand and the filter’s mass heavier than it really is. If iron filings were replaced by water you could have used a magnet to separate the the iron filings from the sand because iron is one of the four substances that are magnetic.
In the error analysis if you add the percentages of the silica and sodium chloride you get 99.44. My calculations did not add up to 100% but was very close to the actual value. The percent of error was 0.56. Through the calculations, I ended up having less than we started with. The reason why I did not get up to 100% was because I loss some sand from the beaker therefore made the mass of the sand weigh less. As well as not filling the water up to 10mL which made the mass lighter than it should be. In the data table, if I we to correct my mistakes it would have affected the mass of filter paper and silica and weighing dish and mixture. It would have changed the percent of the sand because if we got all of the sand out the total percent of the silica would have increased.
The purpose of the lab was to separate a mixture of silica and sodium chloride and after separation the data would be used to determine the percentage of each component in the mixture. This experiment was successful because my partner and I did come close to 100%. To improve this lab I would have made sure all my measurements were accurate and could have put more effort into taking the sand out. What I learned from the this lab was was how to separate sodium chloride from sand and

Answer 1

There's too much here, and I don't understand what you did from your experiment just by looking at this discussion, but there is a lot you can improve.



Just say that the salt is soluble in water and sand is not, and you can use this property to isolate the salt by filtration. I have no idea where the iron filings ties in with this, but if this was a different experiment it should be a different paragraph. I also think all of this section should be in the introduction.



The statistics should be in the discussion. I don't know how you did your error analysis, but if you had some graphs, just use standard deviation as your error bars, if you know how to do this. If you did statistical analysis, did you do a Student's t test? Another type of test? Mention this in your discussion. Is your "percent of error" your p value? If so, 0.56 is not statistically significant. if it's something else, just ignore this...



Also, never use 1st or 2nd person narrative in a lab report. After "in the error analysis", you are using 2nd person. Don't use the words "I" or "my" in your report (1st person). Instead, say "the sum of the percentages of the silica and sodium chloride was 99.44". "Some sand was lost from the beaker during the experiment, reducing the mass of the sand".



Don't write in a report that your measurements weren't accurate (even if this was true), it just looks terrible.

Answer 2

This is not lab report. It is an analysis of what you did or should have done .Lab reports make things simple to understand, and the examiner does not have to guess what you are doing Start with the heading of

Purpose:. What you are investigating to trying to replicate

Method:. List the equipment to be used and the substances.

Observations: All of your readings , whatever, and observations of chemical and physicals, description before, during and after the experiment

Conclusions: You must refer to the main purpose of doing the experiment. If unsuccessful, to suggest changes to the method or substances.to improve the results, if possible.

Answer 3

ok, i'm uncertain how lots i can rather help, via fact i'm basically in 8th grade, yet i will attempt=) Lab comments would desire to consistently be in third guy or woman. you will desire to no longer use "we poured in..." or "pour in..." via fact "we" is 1st guy or woman and the different is like instructions. it might additionally be written interior the previous demanding. each and every so often it gets slightly complicated with tenses I made myself an organizer to help me write labs. At my college, we write labs with creation, consequences, communicate, and destiny sections. The components and ideas section could be a piece of the outcomes, so describe each and all of the commencing components and and the procedures you used. you will desire to cite any photographs in this section too (equipment, graphs, tables, etc.)between the themes my acquaintances have while they write labs is they don't understand a thank you to commence it off after the creation. the least complicated way i can enable you recognize is to commence on the initiating. do no longer pass forward to step 3. commence on the very initiating, like "formerly the *sciencey noun* replaced into *verb*, it replaced into *now describe what each and every thing replaced into like formerly you probably did something*. Use numerous information. and that i advise lots. placed each and every thing in there. pay interest very heavily to each little thing that occurs for the period of the attempt. Be very observant. i'm sorry, i don't understand any hyperlinks with examples. i'm hoping I helped slightly, and sturdy success!