Study guides, Class notes & Summaries

Quantative Qualitative Analysis UseQuantativeAnalysistoidentifyunknownsubstance compound weight usequalitative analysis to identify chemical substances 1Obtaincleanbeakertestthe scale Carbonate Analysis 2Placetesttubeinsidebeaker place MCO3 42504 Mth504 H2OCO2 onscale 3Zerooutscale measuregofmetal carbonateintotesttube 4 measurerecordactualmasspoured 1.1809g 5 Pourmetalcarbonateintobeaker 6 Powsulfuricacidintobeaker firing Co2gas swim toensurecomplete reaction mass loss7033gasCO2 7 We...

CHEM 103 Lab Exam 2 100% Correct!! The _____ of a chemical reaction refers to the rate of the reaction. - ANSWERkinetics List the four factors that control kinetics of a chemical reaction. - ANSWERThe nature of the reaction itself, the concentration of the reactants, the temperature, and the presence of a catalysts What color is the permanganate? - ANSWERpurple What color is the oxalate solution? - ANSWERcolorless What color change do you see in the rate of reaction lab when monit...

CHEM 103 LAB EXAM QUESTIONS and What color and what type of reaction does Baeyer's test indicate when reacted with a Alkane? - ANSWERSTAYs purple NEGATIVE reaction What color and what type of reaction does Baeyer's test indicate when reacted with a Alkene? - ANSWERTURNS red POSTIVE reaction Bromine in CCl4 with Alkane - ANSWERturns the red-orange (NEGATIVE) ANSWERS 100% Correct!

Chem 103 Lab Exam 3 Questions & Answers Oxygen, O2 - ANSWERis a colorless, odorless gas that supports combustion. A glowing splint will brighten or burst into flame when thrust into the conatiner. Hydrogen, H2 - ANSWERis a colorless, odorless gas that burns in air. It is less dense than air and can be captured in an inverted vessel. A confined mixture of this and air (in an inverted test tube) will ignite with a "pop" when exposed to a flame. By contrast, pure __ will burn quietly with a b...

CHEM 103 Lab Exam 1Questions and Answers 1 When making observations, what are the things you should describe? - ANSWERsmell, appearance, and state of matter of chemicals before and after the reaction, how long the reaction occurred, and names of chemicals What is the density of a substance? - ANSWERThe amount of matter contained in a specific sized sample of that substance; mass per unit of volume Will the density of a given substance always be the same despite the volume (as long as the ...

The _____ of a chemical reaction refers to the rate of the reaction. - ANSWERkinetics List the four factors that control kinetics of a chemical reaction. - ANSWERThe nature of the reaction itself, the concentration of the reactants, the temperature, and the presence of a catalysts What color is the permanganate? - ANSWERpurple What color is the oxalate solution? - ANSWERcolorless What color change do you see in the rate of reaction lab when monitoring the chemical reaction between th...

Oxygen, O2 - ANSWERis a colorless, odorless gas that supports combustion. A glowing splint will brighten or burst into flame when thrust into the conatiner. Hydrogen, H2 - ANSWERis a colorless, odorless gas that burns in air. It is less dense than air and can be captured in an inverted vessel. A confined mixture of this and air (in an inverted test tube) will ignite with a "pop" when exposed to a flame. By contrast, pure __ will burn quietly with a blue flame if it replaces natural gas in a...

When making observations, what are the things you should describe? - ANSWERsmell, appearance, and state of matter of chemicals before and after the reaction, how long the reaction occurred, and names of chemicals What is the density of a substance? - ANSWERThe amount of matter contained in a specific sized sample of that substance; mass per unit of volume Will the density of a given substance always be the same despite the volume (as long as the are under the same specific set of condition...

What were the physical properties used to identify alkanes and alkenes? - Answer-Boiling points and Density What color is the potassium permanganate reagent in the Baeyer's test? - Answer-Purple What color is the bromine in the bromine test? - Answer-Yellowish/ Orange Which hydrocarbon will have positive result for the baeyer's and/or bromine test? - Answer-Alkenes What solvent was used to extract curcumin? - Answer-Isopropyl alcohol What is the percent of curcumin found in turmeric? - A...