Paper Chromatography Lab

Draw the attraction between a water molecule and a molecule of PCl3 First, draw one molecule and add the partial charges where needed - use the ΔEN to determine the types of bonds.  Then, draw the second molecule so that the δ+ on one molecule lines up across from the δ- on the other.  Since we can't draw the molecules here you will answer questions about the drawings that you made on the homework worksheet. PCl3 has  ________ bonds with a ΔEN =  ________ . PCl3 has 4 REDs and is symmetrical/asymmetrical (answer is  ___________ ) making it a polar/nonpolar (answer is  ___________ ) molecule. Each Cl has a  __________ charge and the P has a  __________ charge.   H2O has 2  ________ bonds with a ΔEN =  +__________ .   H2O has 4 REDs and is symmetrical/asymmetrical (answer is  _________ ) making it a polar/nonpolar (answer is  __________ ) molecule.   Each H has a  ___________ charge and the O has a  _________ charge.   The strongest possible attractive force between these two molecules…

There could be more than one correct answer

se Home MC_Chapter 16n lydrogen Bonding of Amines - Copy Determine the maximum number of hydrogen bonds that can form between a propylamine molecule and water molecules. O 5 O10 09 08 04 O11 26 01 12 71 F Partly sSunny ch

Complete the following interactions NABH4 CH H* H,C CH, KMNO4 H2O 3 H,C 1.NAOH, H2O 2.H* H,C HCI CI 4.

This is the worksheet and follows the instructions to answer them correctly.

Draw the attraction between a water molecule and a molecule of PH3 First, draw one molecule and add the partial charges where needed - use the ΔEN to determine the types of bonds.  Then, draw the second molecule so that the δ+ on one molecule lines up across from the δ- on the other.  Since we can't draw the molecules here you will answer questions about the drawings that you made on the homework worksheet. PH3 has _________ bonds with a ΔEN =  ____________ .   PH3 has 4 REDs and is symmetrical/asymmetrical (answer is  _________ ) but it is a polar/nonpolar (answer is  ___________ ) molecule. Each H has a __________ charge and the P has a  __________ charge. H2O has 2  ___________ bonds with a ΔEN =  _________ .   H2O has 4 REDs and is symmetrical/asymmetrical (answer is________ ) making it a polar/nonpolar (answer is  __________) molecule. Each H has a  _________ charge and the O has a  ________ charge.   The strongest possible attractive force between these two molecules is…

Consider the data in the table. Compound Melting point (°C) ????? (??/???)Δ⁢Hfus (kJ/mol) Boiling point (°C) ????? (??/???)Δ⁢Hvap (kJ/mol) HFHF −83.11 4.577 19.54 25.18 HClHCl −114.3 1.991 −84.9 17.53 HBrHBr −86.96 2.406 −67.0 19.27 HIHI −50.91 2.871 −35.38 21.16 Using the data in the table, calculate Δ?fus and Δ?vap  for HF. Δ?fus=           J/(K⋅mol) Δ?vap=           J/(K⋅mol)   Determine the entropy change when 8.70 mol HF(g) condenses at atmospheric pressure.   Δ?=           J/K

Consider the data in the table. Compound Melting point (°C) ????? (??/???)ΔHfus (kJ/mol) Boiling point (°C) ????? (??/???)ΔHvap (kJ/mol) HFHF −83.11 4.577 19.54 25.18 HClHCl −114.3 1.991 −84.9 17.53 HBrHBr −86.96 2.406 −67.0 19.27 HIHI −50.91 2.871 −35.38 21.16 Using the data in the table, calculate Δ?fusΔSfus and Δ?vapΔSvap for HF.HF. Δ?fus=ΔSfus=   J/(K⋅mol)J/(K⋅mol) Δ?vap=ΔSvap=   J/(K⋅mol)J/(K⋅mol) Determine the entropy change when 7.60 mol HF(l)7.60 mol HF(l) boils at atmospheric pressure. Δ?=ΔS=   J/K

* Summit Leaming 9 Home | Schoology Eter pps A summitlearning.org/my/assessment takes/62492058/q/1 Acids and Bases [10G.S, 8F.R, 10H.S, 7A.R]:Question 1 Trihydrogen monophosphide is a covalent molecule that can also act as an acid. What is the correct acid name for trihydrogen monophosphide? Select one: phosphorous acid phosphoric acid hydrophosphoric acid hydrophosphorous acid ing.org/my/focusareas/1639412 Type here to search

Is this correct?

Ethanol (CH3CH2OH) is an example of a compound with an alcohol group. Alcohols can act as acids or bases in solution. We can consider a reaction of ethanol with NaOH to see the acid/base properties. a. Draw Lewis structures of ethanol and sodium hydroxide. Be sure to show all lone pairs and formal charges. ethanol sodium hydroxide b. Draw out a full equilibrium acid/base reaction between ethanol and sodium hydroxide, showing the correct arrows for electron movement. Use the pka table at the right to answer the following questions. C. What would you expect the equilibrium composition of this reaction to be? d. If a chemist wanted to push the reaction to create a high yield of product, what would be a good base to use? Short pKa table Functional group Alkane Amine Alkyne Water Protonated amines. Carboxylic acids Hydrochloric acid Example CH₁ :NH₂ R=H HO-H NHA CI H₂C OH HCI Weaker acid pKa ~50 -35 25 16 10 5 -8

How do you answer this??

1,2

Illustrate the formula of the alcohol, also, what is the answera.1 ROH b. 2 ROH c. 3 ROH

For some questions you will need to use the special periodic table attached in the images! Treat Je, Qu, Ap, and Bg as NONMETALS! Classify each of the following alcohols as primary (1°), secondary (2°), or tertiary (3°)? Look at attached images (Please show work so I can understand going forward)

What is hydrolysis? Group of answer choices It is a reaction that involves the formation of water. It is the reaction that has water as a reactant, and involves the breaking of bonds in the water molecule. It is the solvation of a species in water. It is the reaction of a base with an acid. It is the phase change of water from a solid to a liquid.

10 What type of organic molecule is this? H. н Н-с-с-с H. н ketone alcohol aldehyde organic acid

||| O ORGANIC FUNCTIONAL GROUPS Naming and drawing ketones Write the systematic name of each organic molecule: Explanation structure OH O OH g OH Check OH O= name 0 0 X © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use 3/5

HELP NAME OF THE COMPUND, BADLY NEED IT

35-37

Draw a balanced chemical equation (including any necessary charges) for the formation of a hydrochloride salt below.

Br 1. Na+ -C=CH THF 2. H2SO4 /H2O HgSO4

2. For each compound in problem #1, write the dominant form of the compound in water. a) HNO: b) H20 c) PbSO, d) NH,OH e) Ca(OH)2 ) H;SO. g) Bas(PO4)2 h) NaBr i) HCH,CO2 j) CH;NH2 k) CH;CH3 I) CH;CH2CO:Na" m) CH;CH2NH,"CI n) CH;CH2 CO: Ag* o) (CH,CH2NH,")2s2-

1. Name the following compounds. Br HO H. Br HO F .CI NH2 2. Which has the highest boiling point: an aldehyde, an alcohol, or a anhydride of similar size? Explain your reasoning.

5 In the condensation reaction used in Part B, the water molecule is produced when a -OH from the carboxylic acid functional group in one molecule bonds to the proton of an alcohol functional group in the other molecule. Consider the two molecules below and answer the questions that follow. OH HO H₂SO4 a. Circle the -OH of the carboxylic acid group and the proton of the alcohol that combine to form H₂O. b. Recall that oxygen generally participates in two bonds and carbon participates in four. Draw a dotted line between the two atoms in the organic molecules that must bind to each other in order to maintain the typical bonding numbe for all atoms if the circled elements of the H₂O molecule separate from the reactants. c. In the box provided, draw the product formed by bonding the atoms connected by your dotted line.

(a-b) (c-d) (e-f) (g-h) (1) C= (j-k) (l-m) -C=C-CH3 H₂, Raney Ni 2. H₂O, H+ 1. CH3CH₂-MgBr 2. H₂O, H+ H₂, Pd Quinoline BaSO4 1.03 2. H₂O -MgBr excess HBr H₂O₂ 1. LIAIH4 2. H₂O, H+ 요 CH3-CEC-CH₂CH₂CH3 -CEC-H 1. 2. H₂O, H+ H₂ (1 equivalent) Pd NaBH4 CH₂OH excess Cl₂ excess HCI NaBH4, CH3OH

Consider the compound iron (iii) hydroxide in Model 3. A) how many hydroxide ions (OH 1-) are combined with an iron (iii) ion (Fe 3+) ? B) is your answer to part a the the only combination of iron (iii) and hydroxide that should exist in nature ? Explain.

Fill in the blank boxes below. 1. HCI H20 1. ВН THF 2. HO HO H H Pd/C 3. Cle CH-CI HCI 4. HCI HOCH CH 7. H3C OOH Cl2 CH,OH 5. 2. 1. Hg(OAc). 2 NABH, NAOH, HO 6. 8.

Use the Chemical Appendix at the back of the Lab Manual to determine the precautions that must be used for glacial acetic acid and Concentrated sulfuric acid. Very corrosive. Avoid contact with skin as it causes severe burns. Avoid contact with eyes and skin. Avoid breathing vapour. Flammable. 1. Glacial acetic acid 2. Concentrated sulfuric acid

Compound A OH OH NH₂ Compound B OH H₂N. OH OH O=S=O -ONa+ Differentiating Chemical test 1 3 5 Positive sign/s of reaction Dissolution and rapid bubbling (effervescence) 4 Formation of white precipitate Compound that will react (A/B) 2 B 6

Photos - 2022-05-12.png 156% A See all photos + Add to * Edit & Create v IA Share |CEM1000 W – Tutoriai worksneet 2022 - WFP| WEEKS 11–12 Question 1 Provide the IUPAC name for the following compounds. .Br Br A B HO E Ouestion 2 09:33 12°C Cloudy A O G E O G 4) ENG 2022/05/12

Could someone please help me with ranking these by polarity? And can someone also explain the polarity of these structures?

Chemistry What is the identity of each of your unknowns (e.g. aldehyde, alcohol, etc.)? Provide support for your choice.

None

Now, on top of the structure of methyl amine (CH3NH₂) below, select the region where the partial positive charge (8+) would be located within the structure. Keyboard controls Add selection & I H H C-N. H H 8