Chemistry question and answers for July 09, 2023
- Q According to the Hinduism, what are the four stages of life andwhich are the obligations associated with each?(this is for a world relgions class but there is no option forit...
- Q Environmental health project. I am doing it on the effects ofsmoking and alcohol so which body system will it affect to? Howdoes it affect the teeth, heart lungs, etc? Please...
- Q An organic acid concentration in a hard sample was determined bydiluting a 15.00 mL sample of 200.00 mL solution. A 20.00 mLportion of the diluted sample reacted with 40.0 mL...
- Q Partial Pressure:a) Calculate the partial pressure of oxygen and hydrogen in amixture of 35.0 g of oxygen gas and 11.5 g of hydrogen gas in a 2.0L container at 35F?b)...
- Q For ochemRank the boiling point of water at these following three places.Explain why?A) Deat Valley, Elevation -285 ft, P=1.01 atmB) New York City, Elevation 0 ft, P=1.00 atmc) Laramie, WY,...
- Q Use the data below from an electron impact mass spectrum of apure compound to deduce its structure.m/zRelative intensity110591086081879929100282927952644Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â given CH4 as starting material, How to begin with the correctstructure? I know...
- Q You titrate 10.0 mL of 0.30 M acetic acid with 0.10 M sodiumhydroxide.a. What is the pH of the solution after you have added 10.00 mLof NaOH?b. What is the...
- Q 4. The student then titrated 25.0 mL of the same buffer with0.1115 M NaOH. The observed data is below. Hand draw a graph of thedata (on graph paper) and determine...
- Q The UV-vis spec of acetophenone shows a peak at around 242nmwhile trans-p-anisalacetophenone shows two peaks at 340 and 245nm.I just want to know how these peaks came to be, relating...
- Q Pure rotational Raman spectra of gaseousC6H6 and C6D6 yield thefollowing rotational constants: B (C6H6) =0.18960 cm-1 and B (C6D6) =0.15681 cm-1. The moments of inertia of the moleculesabout any axis...
- Q Polyprotic acids contain more than one dissociable proton. Eachdissociation step has its own acid-dissociation constant, Ka1, Ka2,etc. For example, a diprotic acid H2A reacts as follows:H2A(aq)+H2O(l)⇌H3O+(aq)+HA−(aq) Ka1=[H3O+][HA−][H2A]HA−(aq)+H2O(l)⇌H3O+(aq)+A2−(aq) Ka2=[H3O+][A2−][HA−] In general,Ka2...
- Q I need to calculate the buffer capacity in acid and in a basefrom these data. Then I need to write a short paragraph ( 7sentences) explaining what happen and why...
- Q A 5.5984 g sample of soil was analyzed for lead. The sample wasdigested in hot perchloric acid for 5 hours, cooled, filtered toremove insoluble silicates, transferred to a 250-ml volumetricflask...
- Q 1) The average human body contains 5.70 L of blood with a Fe2+concentration of 2.60×10−5 M . If a person ingests 12.0 mL of 16.0mM NaCN, what percentage of iron(II)...
- Q A 1.00 L solution contains 2.00 X 10^-4 M Cu(No3)2 and 1.2 x10^-3 M Ethylenediamine (en). The Kf for Cu(en)2 2+ is 1.0X10^20What is the concentration of Cu 2+ (aq)...
- Q How many calories are required to heat 62.0 kilograms ice from 0degrees celsius to 47.0 degrees celsius?2 C8H18 + 25 O2 --> 16CO2 + 18 H2OHow many grams of CO2...
- Q Describe the principles ofimmunocytochemistry/immunohistochemistry and how the technique canbe usefully employed in the diagnosis and classification oftumours
- Q How much of a change in freezing point would the oceanexperience if the glaciers and icebergs melted? Here is what i haveso far:If all of the glaciers and ice caps...
- Q Indicate two psi angles that are obviously unacceptable in anormal protein structure(except for linkages with Gly&Pro), andexplain with Newman projections
- Q explain why the carbons of even chain fatty acids can never beused to synthesize NET glucose, but that the 14C from labeled fattyacids will be found in glucose.
- Q in a test tube containing 2 mL of 2.4*10^-4 M KSCN, and 23 mL of0.10 M Fe(NO3)3, what are the number of moles of SCN^-, the numberof moles of FeSCN^2+,...
- Q Answer the following questions about molecular-formula equationsand net-ionic equations.Part 1:Molecular Formula Equation: Lead (II) nitrate is combined withsodium sulfate. Write the formulas of the starting materials andpredict the products. Balance...
- Q 1.Determine the molarity pf a calcium nitrate solution thatcontains 40.0 grams in a total solution volume of 250 mL.2. How many grams of lithium carbonate are required to prepare 250mL...
- Q Consider the titration of 0.100 L of 0.200 M sulfurous acid (seeKa/Kb table from table) with 0.500 M NaOH. What is the pH at theendpoint of the titration?
- Q LI2+ ion(a) Calculate energy (in Joules) of the 2px orbitalof the ion(b) Calculate energy (in Joules) and Wavelength (in nm) of thetransition from the 4s orbital to the 2pz orbital...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!