Survey of Chemistry Lab I

of an observation? What were your controls and variable in the relevant experiments? What did you learn from each experiment? What is the underlying cause or source of each observation? We did 3 experiments to finally find a solution to why the mixture was sizzling. We decided to keep using the red solution(control) and change up what we add to it, so the Pheno

CHEM | 1151L | Survey of Chemistry Lab I | of an observation? What were y

DATA SHEET I Date September 26, Name Empirical Formula of Zinc Chloride Partner  Be sure to record all data and perform all calculations using the proper number of significant figures and units. You will be graded upon correct use of significant figures and units . Mass of zinc metal…………………………………………………. 1.447 g Mass of evaporating dish………………………………………… 4

CHEM | 1151L | Survey of Chemistry Lab I | DATA SHEET I Date September 26

REPORT SHEET Date 3/20/ Name Carboxylic Acids Partner Answer the following questions: 1. Use ChemDraw to draw the structures for: A. Acetic acid (Ethanoic acid) B. Benzoic acid 2. Why did acetic acid have an odor but benzoic acid did not? - Benzoic acid has a higher molecular weight and lower vapor pressure than acetic acid. 3. Why did the acetic acid odor disa

CHEM | 1151L | Survey of Chemistry Lab I | REPORT SHEET Date 3/20/ Name C

DATA SHEET Date October 20 Name Reactions of Copper Partner Initial weight of copper: 1.014 grams For the following observations, indicate and describe the formation of any precipitates, color changes or other observation you deem important. Also, indicate whether the solution is clear (with no precipitate), colored vs. colorless, etc. Observations

CHEM | 1151L | Survey of Chemistry Lab I | DATA SHEET Date October 20 Nam

DATA SHEET I Date Name Spectrophotometric Deter. of Cr +3 Partner Use this data sheet to collect data for the determination of the best wavelength. (Laboratory period 1) Optical Absorbance is actually measured using a ratio of values and therefore it has no units. Wavelength (nm) Absorbance Wavelength (nm) Absorbance 350 .123 510 .684 360 .182 520 .759 370

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