Chemistry question and answers for August 31, 2023
- Q An unsaturated fat that is liquid at room temperature, such asolive oil can react in the presence of Pd/C without a hydrogensource to form a solid fat of the same...
- Q The mass of an iron bolt was 5.4 greater when it wasmanufactured. After being bolted to an outdoor structure forseveral months, the mass of the bolt was found to hae...
- Q 50 mL of 0.060 M K2CrO4 is mixed with 50mL of 0.080 M AgNO3. Calculate the following:a. The solubility of Ag2CrO4(Ksp = 1.9 X 10-12) in the solution in molesper...
- Q 3a. For the following reaction, 9.80 grams of carbon monoxideare allowed to react with 10.1 grams of water.carbon monoxide (g) + water (l) carbon dioxide (g) + hydrogen(g)What is the...
- Q Find the volume (mL) and the pH of 0.135 M HCl needed to reachthe equivalence point(s) in titrations of the following. (You needto find the pH at the equivalence point,...
- Q Draw the structure of four benzoic acid molecules and as manywater molecules as you need to illustrate how the solid state ofbenzoic acid might look in cold water prior to...
- Q Draw a reaction wheel for boron.
- Q ThepH of Chloroacetic acid solution is 1.71 Based on the pH and thepKa of 2.85 what percentage of the Chloroacetic acid is inHA(protonated) form
- Q No. 5A 1.00L bulb containing 0.233 Mol N2 and 0.341 mol PCl5 isheated up to 523K. The total pressure at equilibrium is 29.33 bar.Assuming that all gases are ideal, calculate...
- Q CalculatethepHofthesolutionformedbyadding25.10mL0.100MHNO3to15.00mL0.150M KOH.
- Q (1) What volume of 1-butanol is needed to convert 1.00 gram ofbenzhydrol to n-butyl benzydryl ether?(2) Write the mechanism for the acid catalyzed condensation ofethyl alcohol to give diethyl ether....
- Q 1)For the following reaction, 4.56 grams of iron(II) chlorideare mixed with excess silver nitrate. The reaction yields 5.35grams of iron(II) nitrate. iron(II) chloride (aq) + silver nitrate(aq) iron(II) nitrate (aq)...
- Q Imagine that you are in chemistry lab and need to make 1.00 LLof a solution with a pHpH of 2.60.You have in front of you100 mLmL of 6.00×10−2mol L−16.00×10−2mol L−1...
- Q How can an organism generate ATP from Acetyl-CoA directly (notvia electron transfer chains indirectly)? Describe the chemistryinvolved.
- Q Challenge problem:Critical mass is the smallest amount ofradioactive material necessary to sustain a nuclear chain reaction.Uranium-235, the isotope of uranium used in the \"little boy\" bombdropped on Hiroshima during Wordl...
- Q Potassium tris(oxalato) ferrate (III), also known as potassiumferrioxalate, is a green crystalline- compound of octahedralgeometry. It is a metal complex of iron with three oxalate (C2O42-)ligands bonded to the central...
- Q Ignoring activities, determine the molar solubility of copper(I) azide (CuN3) in a solution with a pH of 3.088. Ksp (CuN3) =4.9
- Q For each of the following molecules, draw the most preferredLewis structure and label each of the atoms with its formal charge.Question to consider: What is/are the main criteria for drawing...
- Q A compound has a pKa of 7.4. To 100mL of a 1.0 M solution ofthis compound at pH 8.0 is added 30 mL of 1.0M hydrochloric acid.What is the resulting...
- Q A student loaded a mixture onto a small flash chromatographycolumn in 1 mL of ethylacetate, then proceeded to elute with hexanes/ethyl acetate 10:1.He/she found that all of the mixture came...
- Q why is it unlikely for magnesium to form a cation with a chargeof 1+?
- Q 7.1 g of water ice at 268.4 K is mixed with 234 g of liquidwater at 304.7 K in an insulated container under an externalpressure of 1.00 bar. Answer the...
- Q 1)Potassium hydrogen phthalate is a solid,monoprotic acid frequently used in the laboratory to standardizestrong base solutions. It has the unwieldy formula ofKHC8H4O4. This isoften written in shorthand notation as KHP.How...
- Q 1a) A block of an alloy of mass 33.0 g and at atemperature of 289.36 K is placed in a calorimeter containing 36.0g of ethylene glycol at 348.15 K. If...
- Q Below is a list of pairs of compounds. Choose the pairs from thelist that would NOT form a precipitate if mixed together.a. KCl and Na3PO4b. Ca(NO3)2 and MgSO4c. FeCl3 and...
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