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Hypothetical element X has 3 stable isotopes. The relative peak intensities are 62.05 for 180.0 u, 100.0 for 184.0 u, and 80.45 for 186.0 u. Explain what is the average atomic mass for X?
Write a balanced net ionic equation to show why the solubility of MgF2(s) increases in the presence of a strong acid and calculate the equilibrium constant for the reaction of this sparingly soluble salt with acid.
why might a poor yield of cyclohexene be realized if the dehydration that you did was carried out with hcl instead
Important information about Liquid Crystals, Are there differences between the cholesteryl benzoates and the cholesteryl esters having long carbon chains?
Explain why the mixture of alcohol does as well as sulfur powder yellow in color turns into a white mixture when added to water
A substance has a molecular mass of 100g/mol. How many ug are in a 700mm3 volume of a 2mM solution?
Draw the following peptides, AND indicating the amide bonds that are formed through the side chains. What are the pKa values of the various groups on the peptide?
100 mL of a 0.125 M solution of HBr was titrated with a 0.100 M solution of KOH at 25 C. The equivalence point will be reached after addition of what volume of the titrant?
What is the enthalpy of reaction per mole of oxygen bound. The heat capacity of the solution may be assumed to be 4.18J/k cm3
The tank can hold a pressure of 50.0 atm before bursting. During a fire the gas is heated to 500 C. What is the gas pressure, and will the tank contain the gas without bursting
What is a zymogen? Is it used over and over like other enzymes? And what is the physiological advantage
Tartaric Acid is a diprotic acid with ka1=1.0*10^-3 and ka^2=4.6*10^-5. Calculate the concentration of tartarate ion, C4H4O62-, present in 0.015 M aqueous H2C4H4O6 soultion
iodination is electrophilc aromatic substion reaction in which electrophile is Iodonium (I^+) , it will updatined by the reaction of sodium hypochlorite (NaOCl) with iodide ion (NaI), which is strong electrophile that reacts quickly in an electrop..
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