Questions asked by Loveta Love

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• What is the velocity of reaction?? what is rate of reaction ? what is instantaneous rate of reaction ???
  
• What is rate constant and what is specific rate constant?
  
• What is the actual formula for iron rust ??
  
• How we can understand the rate of reaction by chemical method?
  
• What is activation energy? What is threshold energy? What are the differences between them?
  
• Please guide about the tolerance level of total aerobic count and total yeast and mold count for herbs with the references of FDA or WHO?
  
• Please tell the name of pH paper and pH meter that are used for detect the pH of oil?
  
• Which pH paper and pH meter that are used for detect the pH of oil?
  
• Please let me know which is more soluble in water 1-Octanol or 1,3-Propanediol, and please what is the reasons and explain. ?? Thank you
  
• Which has the lower value of pka ?? (a) 3-methyl-2-butanol (b) p-hydroxybenzaldehyde; I need some explanation for my thesis work.
  
• Why value of pka of p-hydroxylbenzaldehyde is lower than 3-methyl-2butanol ? Please explain , thanks
  
• What is the SMART query for carboxylic acids ???
  
• What is the O.N of carbonyl carbon in Ethyl 4-methylpentanoate ???
  
• How to prepare 1-phenyl-3-methyl -2- butanol?? Thank you in advance
  
• Please explain me if we created a vacuum and lowered the boiling temperature would we still get in extracting the essential oils successfully??? Please guide me, thank you so much.
  
• How I can find the saponification of herb?? I need your valuable advises.
  
• .Please let me know why it is necessary to scrupulously oven-or flame-dry the glass used in Grignard reaction? Please write the reaction.
  
• In the extraction procedures, how do I know layer is on top and which is on the bottom????
  
• Write the overall reaction for reaction of methyl benzoate with excess phenyl magnesium brimide in ether, followed by H3O+. ????
  
• Please let me know why it is necessary to scrupulously oven-or flame-dry the glass used in Grignard reaction? Please write the reaction.
  
• What is the purpose of adding sufuric acid at the end of the Gringard reaction??
  
• Suppose you ran this sequence of reaction starting with 8.0 g of benzoic acid, excess methanol, and excess phenyl magnesium bromide.What would be the expected theoretical yield of triphylmethanol?? Show all calculation.
  
• A reaction starting with 8.0 g of benzoic acid, excess methanol, and excess phenyl magnesium bromide.What would be the expected theoretical yield of triphylmethanol?? If 5.36 g of triphenylmethanol is end product, what is % yield?Show all calculation.
  
• What main peaks should be seen in the IR spectrum the methyl benzoate??
  
• Please let me know about the clear differences b/w Alkaloid and Fatty acid ??
  
• What would be the product when 2-methyl-2-propyloxirane with CH3MgBr??
  
• Please let me know what would be the product when 2-ethyl-2,3-dimethyloxirane reacts with HBr ??????
  
• What is the correct order of reagents needed for the following transformation? Write the correct sequence #CH_3-CH_2CH_2Br -> CH_3-CH_2-CH_2-S-CH_2-CH(CH_3)_2 #
  
• What would be the product of 1-bromopropane with Mg in diethyl ether??
  
• Name the chemicals that break down the smell and yellow color of urine?
  
• Which of the following compounds has the longest λ max ? https://www.chegg.com/homework-help/questions-and-answers/following-compound-s-longest-max-q3760297
  
• Please let me know about the basics of Phosphorescent and Fluorescent materials.? Thank you.
  
• Which are fluorescing / phosphorescing powders or dyes that is dissolved in the water to illuminate the droplets when UV light fall?
  
• What is the basic difference between Fluorescence and Phosphorescence?
  
• Why are falling drops of water spherical?
  
• What are alkali and alkaline earth metals? Please explain why we call them so.
  
• Can any one explain the Heisenberg Uncertainty Principle in the simplest ways?? Thank you so much.
  
• What is Balmer Series ???
  
• What is the product of reaction of 3 hexanone with 1, 3 propanediol???
  
• What is the product of reaction of 4-methyl -3-hexanone with aminobutane??
  
• What is the product of the following ??? 4-methyl-3-hexanone with #"SH"-"CH"_2"CH"_2-"SH"#
  
• Why boiling point of a liquid remain constant although heat is continuously supplied to the liquid?
  
• Why mercury has its meniscus upward ??
  
• I do not know what antibonding means and why those types of molecular orbitals are highly energetic. Please explain me with easiest way so that I can understand?
  
• What is the threshold energy??
  
• How does the temperature affect the rate of chemical reaction??
  
• How can OH radicals eradicate Virues and Bacteria ?
  
• I have 2oz concentrated 40% aqueous solution, I want to dilute it 10% , How I dilute it ??? Please I need you kind help. Thank you
  
• Draw the expected final product when 2-bormo-4,4,5-trimethylheptane is subjected to the following sequence of the reagents: 1) Mg/Et2O 2) CO2 3) H3O+ ??? Please , thank you
  
• What would be the product when 2,3-dimethylhexanoic acid is treated with SOCl2/pridine, followed LiAl [OC(CH3)3]3H ?
  
• Which of the following statement is FALSE?
  
• Which is more reactive towards nucleophilic attack, an aldehyde or a ketone? Give at least one reason why
  
• What would be the product from the reaction of octanal with PhCH2NH2 in the presence of acid catalyst????
  
• Draw the expected product when 2,3-dimethylhexanoic acid is treated with SOCl2/pridine, followed LiAl [OC(CH3)3]3H. ???
  
• Which of following carboxylic acid derivatives is most reactive towards nucleophilic substitution?
  
• When 2,3-dimethylhexanoic acid is treated with SOCl2/pyridine, followed by LiAl [OC(CH3)3]3H, what would be the product???? Thank you
  
• Please explain the beta elimination?
  
• I want to make 1oz solution from these ingredients: Alcohol 55.0 % Distilled water 44.0% Salt ( sodium Chloride) 1.0%. Please let me know with explanation Thank you so much. ?
  
• What is mRNA sequences (AAUG or CCGAU,)?? Please let me know in easy language. Thank you so much.
  
• What is mRNA sequences (AAUG or CCGAU,)?? Please let me know in easy language. Thank you so much.
  
• Will Cadmium hydroxide precipitate from 0.01 M solution of #"CdCl"_2# at pH 9. #K_(sp)# of #"Cd"("OH")_2 = 2.5 xx 10^(-14)"M"^3#? Please solve,thanks!
  
• What is solubility and solubility product??
  
• What is common ion effect?
  
• Calculate the mass of ethyl acetate formed at 25 C from 1.66 moles of acetic acid and 2.17 moles of ethyl alcohol ? . Kc = 4
  
• A 100 ml test portion from a mining site requires 9.62 mL of 0.000169M Ag+ titrant to reach the endpoint using the reaction described above. What is the CN^-1 concentration in this water sample?
  
• Which one of the following equilibrium reactions corresponds to the β2 constant for the complexation reaction described above? Part a) Ag+(aq) + 2Cn^-1(aq)
  
• I have a confusion regarding significant and rounding off data, What would be correct answer of this , if we add them: 5.00 + 0 .775 + 0.0001 = ??? What would be its correct answer??
  
• I have a great confusion in significant and rounding off data, 834.8501 I have to be asked to round off to four significant, I have done it as 834.8, but teacher said it would be 834.9, she says rounding of 501 is greater than 500 so one is add into 8. ?
  
• What is mantissa? Please
  
• Please let me know what the difference between #"Fe"^(+2)# and #"Fe"^(2+)#, I mean #+2# valency or #2+# valency ??
  
• The ratio of rates of diffusion of two gases #X# and #Y# is 2:3. The molar mass of #X# is #27#. Find the molar mass of gas #Y#?
  
• If we have 16 gm of Oxygen gas at 273 C and 1 atm pressure, what would be its volume?
  
• 900 kg water have T1 = -40 C, T2 = 0C and T3 = 5 C, How much energy is needed to melt this mass of water in 2 hours? Thank you so much.
  
• A rock slide splashes into the ocean and creates a wave. This water wave has a period of 1.2 seconds, and a wavelength of 14 meters, how long will it take for this wave to travel to a shore 3.3 km away?
  
• An earthquake originating in Edmonton, Alberta, Canada produces a wave that has a period of 0.23 seconds and a wavelength of 57 m. ?
  
• Please help me! Is it possible that lactic acid can be reacted with concentrated aqueous solution of potassium alum at pH 3 ????? Please answer my question with explanation Thank you so much?
  
• What product would be if aluminium hydroxide reacts with lactic acid???
  
• Please let know how is Electronegativity value in Halogen family? I am really unclear. Thank you.
  
• How does the bond energy for the formation of #"NaCl"(s)# take place? Please explain in steps comprehensively but concisely. Thank you in advance.
  
• Please let me know about Heisenberg uncertainty principle. I am very unclear about its equation? Thank you so much.
  
• I am very confused about anti-bonding orbitals, how they form? I mean when two atomic orbitals produce bonding orbital + anti-banding orbital?? Please clear my basics. I am really worried, please solve my problem
  
• What is the basic difference between Valence bond theory and Molecular orbital theory??? Very basics. Thank you.
  
• I do not understand ionic bond is non directional but covalent bond is directional ?? Please explain me easy ways. Thank you.
  
• What is gram atom? 5 g atoms of Nitrogen, how much it would be? Thank you.
  
• How many total number of all the elements present in mole of (NH4)2 Cr2O7? Thanks a lot.
  
• What is bond order? How we can determine it? Please basics. Thank you so much.
  
• I am really confused about the relationship between Kp and Kc?? (1) Kp = Kc (2) Kp > Kc (3) Kp<Kc Please explain me very easy methods with basics. thanks a lot.
  
• What is instantaneous rate of reaction? and how we can determine it?
  
• What is the difference between delta x and dx? Thank you in advance.
  
• How I can round off it? 0.0505 If it is 0.051 then why ? If it is 0.050 then why . Please let me know reason, Thanks a lot.
  
• How do I round off 0.0505 ?? Please Explain, Thank you
  
• What is periodic table? What is periodic classification?
  
• How do I round off? 12.456 + 15 + 23.45
  
• Which statement is correct one and how? 1- Which number has three significant figures? 2- Which number has three significant digits?
  
• What is the difference between ideal gas equation and combined gas equation? Thank you
  
• What is the formula for determine heating produce by a lens?
  
• What are hydrides?
  
• Please explain me iiiB group of the periodic table.?? Thank you.
  
• What is the valence electronic configuration of f - Block elements?
  
• I do not uderstand the meaning of Eka - Boron . What is the meaning of Eka?
  
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