2,220 Answered Questions for the topic organic chemistry
Organic Chemistry
11/15/20
calculate the percent yield for the reaction P4 +6 Cl2 = 4 PCl3. if 75.0 g pf phosphorous reacts with 345 g of chlorine to produce 111.0 g of phosphorus trichloride.
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Organic Chemistry Chemistry
11/15/20
Organic Chemistry
I am stuck on these questions- I cant seem to wrap my head around stereoselective and stereospecific. I have to describe my answers to each and I have drawn out some of the reactions but I am...
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Organic Chemistry Chemistry
11/13/20
Question in Description
Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous...
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11/12/20
i need help on chemistry it multiple choice question
The figure shows different possible transitions of electrons as they move from higher energy states to lower energy states. Which transition will produce the spectrum line with the lowest...
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Organic Chemistry Chemistry
11/12/20
Atomic Emission Spectra and the Bohr Model
5. Which Bohr diagram shown above represents the purple band seen in the hydrogen emission spectra (below)? The red band? The blue band? The blue-green band? Explain how you know.6. A single atom...
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Organic Chemistry
11/12/20
Organic Chemistry College Homework Help Please
DNA template strand: 3’ GGC ACT ATT GCT 5’a) Write corresponding mRNA segment.b) What are the anticodons of the tRNA?c) Write the 3 letter abb. for the sequence.thank you
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Organic Chemistry
11/11/20
If 7.25 g of Mg undergoes the following reaction, what is the % yield if 6.76 g of magnesium nitride is produced? 3 Mg(s)+N 2 (g) Mg 3 N 2 (s)
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11/10/20
Enthalpy of formation
Using standard heats of formation, calculate the standard enthalpy change for the following reaction.2H2O(l)2H2(g) + O2(g)
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11/10/20
Enthalpy of formation
Using standard heats of formation, calculate the standard enthalpy change for the following reaction.2Fe(s) + 3Cl2(g)2FeCl3(s)
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11/10/20
Enthalpy of formation
A scientist measures the standard enthalpy change for the following reaction to be -220.4 kJ :2H2O2(l)2H2O(l) + O2(g)Based on this value and the standard enthalpies of formation for the other...
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Organic Chemistry
11/08/20
Significance of conditions for hydration of alkene
Here is what I have concluded (correct me if I am wrong) In hydration of alkenes we react alkenes(non polar) with sulphuric acid first(as direct reaction of water is not possible)~the cold and...
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Organic Chemistry
11/06/20
Alkanes with 10 hydrogens are insoluble in water
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Which of the following about isoenzymes are true ?
A.) They have the same primary sequenceB.) They localise in different tissuesC.) Isoenzymes have different isoelectric pointsD.) They remain unaltered in health and diseasesI believe the answer is...
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Can you please quickly help me?
Question: What is biomarker?A.) A biological therapy for a diseaseB.) A measurable characteristic by which presence or severity of a disease can be indicatedC.) A symptom of a diseaseD.) A...
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11/04/20
Important question can someone help me?
After several steps of protein purification, your protein yield is lower than you would expect. You suspect a large amount of autolysis (protein degradation) of your sample. How might you minimise...
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Organic Chemistry
11/03/20
ferric chloride test
What color appears when ferric chloride is mixed with a-naphthanol and cresol?
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Organic Chemistry Chemistry
11/02/20
What is the balanced neutralization equation for the reaction below:
HClO3 (aq) + NaOH (aq) > ?
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Organic Chemistry
11/02/20
What is the complete balanced ionic equation for the reaction when copper(I) acetate and calcium sulfide are mixed in aqueous solution.
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Organic Chemistry
11/02/20
how would you do this equation?
The half-life of polonium-218 is 3.0 minutes. If you start with 10.0 g, how long will it be before only 2.8 g remains?
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Organic Chemistry Biology
10/31/20
What happens to water outside the cell when the interior is saltier than its surroundings? Is it hypotonic or hypertonic?
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Organic Chemistry
10/29/20
A wafer with dimensions 12.00 cm * 12.00 cm * 0.0200 cm contains 0.239 moles of siliconHow many grams of Si does this represent?
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10/29/20
Acid-Base Balance and Regulation (Cardiopulmonary Physiology)
Referencing your Siggard-Andersen nomogram, what is the approximate HCO3?FI02 = .21Spontaneously breathing @ f = 18Hgb = 15pH = 7.22PaC02...
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Organic Chemistry
10/28/20
Messages to Tutors Not Showing Up in Inbox
I'm messaging various tutors, but they aren't showing up in my inbox. Are the messages going through? Please help!!
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10/26/20
Titration: Back Titration
44.2 mL of 1.27 M hydroiodic acid is added to 22.6 mL of calcium hydroxide, and the resulting solution is found to be acidic.28.2 mL of 1.33 M sodium hydroxide is required to reach neutrality.What...
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