precise. You work in a chemistry lab. The chemical test you do is based on a color change when two chemicals are mixed. The head scientist provides to you the standard if the process is done correctly. You compare your six samples (#1 to #6) against the standard. 7. What most likely happened to your sample #6? A. Conscious error B. Random error 3. What best describes your sample #6? A. Inclusive C. Outlier B. Exclusive D. Median Standard C. Systematic error D. Unconscious error ▬▬▬▬▬▬ #1 #2 #3 #4 #5 #6

Q: E (J) nfinal:→ 1 4. ninitial 6. 2.12 * 10-18 J 4. 3. 2. 2.

A:

Q: Element B, Al N, P cx O, S FC = -2 F, Cl, Br, I x tar X (1 possibility) X FC = -1 X (4…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: H,0, H,O* (6) 1) ВН, THF (7) 2) H2O2, OH ? (8) (CH3)2C=CH2 (CH3)2CHCH2OH

A:

Q: Figure 6-1 Hel A Br → B H Ha B 4 ܠ ܐ ܐ CI CIB 4 N 4 Br H # R Cl 4 ܐ It BY

A:

Q: Can i get an explanation on how to do 4 a, b, c? Thank you

A: a. A carbon with four different atom/groups present then it is said to chiral and the compound is…

Q: но. HO. Br

A: Acid are those chemical species when dissolved in aqueous solution loses its proton and form…

Q: OH H2SO4 (catalyst) + 2 CH3CO₂H

A: Step 1: Step 2: Step 3: Step 4:

Q: 3. A moderate test for SO4 is to be expected whenever you have SO3 in an unknown solution even when…

A: We have find out answer.

Q: IZ NÄY LiAlHy (Ht workup)

A: LiAlH4 is a strong reducing agent that reduces amide (-CONH2 ) to amine (-CH2NH2)

Q: How would you get from the reactant to the product

A: The given reaction scheme is shown below We have to draw the mechanism of the reaction.

Q: O (±)- -OMe + (±)- (±)- (±)- I. ↑ H- H- I' A H "I H H OMe I -H ▪H OMe → ?

A: This is an example of [4+2]cycloaddition reaction also called Diels-Alder reaction. In this reaction…

Q: 4- Use Hess's law to calculate the enthalpy change (in kJ/mol) of Alanine oxidation (ΔH1) using the…

A: (1)C3H7NO2(s) + 3O2(g) → 5/2 CO2(g) + 5/2 H2O(l) +1/2 (H2N)C=O(s) ΔH1 =?? (2) (H2N)C=O (s) + 3/2…

Q: How to prepare 0-1-2-3-4-5- ppm Fe standard series

A: To make series of standard solution, we have to make a stock solution which can be diluted…

Q: Br KOH DMF 2) Ha

A: First reaction follow the elimination reaction Second reaction undergoes in substitution reaction as…

Q: OD 450 Concentrations 0.105 0      0.144     3.06    0.406 31.9    1.233 108     1.909…

A: According to Lambert Beer Law, absorbance of a solution is directly proportional to concentration of…

Q: Balance the following chemical equation (if necessary): BF (s) + Li:SOs(s) → LiF(s) + B:(SO.)»(s)

A: Chemical reactions are written equation form ,to balance a chemical equation following steps are…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.