I need help with these questions for my lab final!
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I need help with these questions for my lab final!
603 E2583 Fimal Esan Rewe&Practice Proiterms...
need help with my lab please. this is not my entire lab, just the part I...
need help with my lab please. this is not my entire
lab, just the part I am having trouble with.
Finish Write & Insert Fields Preview Results TABLE 2: Formulas, Drawings & Shapes of Molecules: Chemical Formula Lewis Structure Electron- Group Arrangement Molecular Geometry VSEPR Structure Hybridization of Central atom Molecular polarity Example: HOH-OH Tetrahedral bent polar Η Η 1) SiH 2) BF3 3) SCI 4) NHA 5) SF 6) CO2 7) CHẠO 8) XeF4 9) PCI 10) IF2
Please help me solve this, I need it for my lab. I need to calculate the...
Please help me solve this, I need it for my lab. I need to calculate the amount of trans-cinnamic acid equivalent to 4mmol. I do not know how to do this. NOTE: You are responsible for calculating the amount of trans -cinnamic acid (in grams) equivalent to 4 mmol. You must have this done before you enter the lab. ***I need this for my lab which is using bromine and trans-cinnamic acid to create 2,3-dibromo-3-phenlypropanoic acid This is the step...
I really need help with this chem lab question: Suppose you were given a mixture of...
I really need help with this chem lab question: Suppose you were given a mixture of iodine, potassium chloride and water to separate. Using what you know about the properties of these materials from other contexts, outline a procedure that could be used to do a quantitative separation of these three materials. Your procedure should be specific enough, that if followed, someone could determine the quantity of each of the three materials present in the mixture.
Hi I need help with this lab My data Mass of salt: 1.8044g volume of water:...
Hi I need help with this lab My data Mass of salt: 1.8044g volume of water: 74.5ml Initial temp: 21.1 c Final temp: 19.4 c Water constant: 4.184 Molar mass: 101.1 I need to solve for Heat association with the solution of the salt(kj) Enthalpy of solution of the salt(kj) Enthalpy of solution of the salt (kg/g and kg/mol) Enthalpy of solution of salt at infinate dilution (kj/mol) % error in molar enthaply of solution Please show your work so...
I need help with my pre and post lab questions. The three compounds below were spotted...
I need help with my pre and post lab questions.
The three compounds below were spotted on a TLC plate and developed to give the TLC plate shown. Which compound corresponds to which spot? Calculate the Rf value for spot B in the TLC plate shown above. When using polarity to determine the relative rates at which organic compounds travel up the TLC plate, we are considering compounds of similar molecular weight. It should also be noted that Rf values...
I need help with: Two (2) physics lab Questions on "Ohm's Law: Ohmic and Nonohmic Circuit...
I need help with: Two (2) physics lab Questions on "Ohm's Law: Ohmic and Nonohmic Circuit Elements" And three (3) lab questions on "The ratio of e/ m for electrons.'
I need ans for these questions in my lab report Must be stapled here! Results and...
I need ans for these questions in my lab report
Must be stapled here! Results and discussion: Part 1: Would you expect the titration curve of an equal mixture of 0.1 M HNO3 and 0.10 M HCI VS NaOH to be similar to that of 0.10 M HCl vs NaOH? Explain. Part II: we space below, sketch the titration curve vou would expect when titrating a weak base with a strong acid. One source of error or one possible improvement:...
I need help with my chem lab report. I need to identify the unknown structure. Please...
I need help with my chem lab report.
I need to identify the unknown structure.
Please help me identify the importance of each peak in the
spectrums.
What would the reactions look like for this structure when it
reacts with ethanol for DNPH test, CrO3 and dioxane and NaOH for
iodoform test.
The compound was a clear liquid. It is insoluble in water. tests
positive for DNPH test, positive for CrO3 test and negative for
iodoform. These results tell me...
I need the assignment questions help * relating to my last post 6 1 8 9...
I
need the assignment questions help * relating to my last post
6 1 8 9 0 return 2-input Logic Gate- Y 0 0 NAND NOR XNOR Instructor's Signature {15%) Assignment Questions 1. Hand in the results for this lab on the separate sheet (given below). Draw a timing diagram for each gate, showing the relationship between control input, signal input, and gate output Instructor's Signature(10%) gates (e.g., for an AND gate, Y 0 when A -0; Y- B when...
Microbiology Class Lab report. Please, I need help in completing my 1st Lab report on microorganisms...
Microbiology Class Lab report.
Please, I need help in completing my 1st Lab report on
microorganisms in the human environment. My source of the specimen:
the Door handle, Refrigerator, and Telephone.
Question 1. Procedure for culturing microorganisms
from these three sources and how to transfer it onto a nutrient
agar slide.
Question 2. Preparation of a bacterial
smear and gram staining.
Question 3. The procedure of inoculating plates
incubated, temperature and hours.
Thank you.
Materials and Methodis: This section should...
need help with my lab please. this is not my entire
lab, just the part I am having trouble with.
Finish Write & Insert Fields Preview Results TABLE 2: Formulas, Drawings & Shapes of Molecules: Chemical Formula Lewis Structure Electron- Group Arrangement Molecular Geometry VSEPR Structure Hybridization of Central atom Molecular polarity Example: HOH-OH Tetrahedral bent polar Η Η 1) SiH 2) BF3 3) SCI 4) NHA 5) SF 6) CO2 7) CHẠO 8) XeF4 9) PCI 10) IF2
I need help with my pre and post lab questions.
The three compounds below were spotted on a TLC plate and developed to give the TLC plate shown. Which compound corresponds to which spot? Calculate the Rf value for spot B in the TLC plate shown above. When using polarity to determine the relative rates at which organic compounds travel up the TLC plate, we are considering compounds of similar molecular weight. It should also be noted that Rf values...
I need help with: Two (2) physics lab Questions on "Ohm's Law: Ohmic and Nonohmic Circuit Elements" And three (3) lab questions on "The ratio of e/ m for electrons.'
I need ans for these questions in my lab report
Must be stapled here! Results and discussion: Part 1: Would you expect the titration curve of an equal mixture of 0.1 M HNO3 and 0.10 M HCI VS NaOH to be similar to that of 0.10 M HCl vs NaOH? Explain. Part II: we space below, sketch the titration curve vou would expect when titrating a weak base with a strong acid. One source of error or one possible improvement:...
I need help with my chem lab report.
I need to identify the unknown structure.
Please help me identify the importance of each peak in the
spectrums.
What would the reactions look like for this structure when it
reacts with ethanol for DNPH test, CrO3 and dioxane and NaOH for
iodoform test.
The compound was a clear liquid. It is insoluble in water. tests
positive for DNPH test, positive for CrO3 test and negative for
iodoform. These results tell me...
I
need the assignment questions help * relating to my last post
6 1 8 9 0 return 2-input Logic Gate- Y 0 0 NAND NOR XNOR Instructor's Signature {15%) Assignment Questions 1. Hand in the results for this lab on the separate sheet (given below). Draw a timing diagram for each gate, showing the relationship between control input, signal input, and gate output Instructor's Signature(10%) gates (e.g., for an AND gate, Y 0 when A -0; Y- B when...
Microbiology Class Lab report.
Please, I need help in completing my 1st Lab report on
microorganisms in the human environment. My source of the specimen:
the Door handle, Refrigerator, and Telephone.
Question 1. Procedure for culturing microorganisms
from these three sources and how to transfer it onto a nutrient
agar slide.
Question 2. Preparation of a bacterial
smear and gram staining.
Question 3. The procedure of inoculating plates
incubated, temperature and hours.
Thank you.
Materials and Methodis: This section should...
Most questions answered within 3 hours.
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