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Give the formula for the conjugate base of each acid
A.) HNO2
b.) H2O2
Like H2O, HCO3- is amphoteric. (a) Give the formula for the conjugate acid of HCO3-.(b) Give theformula for the conjugate base of HCO3-.
A.)
B.)
A form of the polypetide hormone angiotensin II has the amino acid composition ( ASP, ARG, ILE, MET, PHE, PRO, TYR, VAL). The following observations are made
A student wishes to make a soution of lithium hydroxide (LiOH) to a strength of 1.7 mol/L. If he is going to make a total volume of 1.5 L
The density of titanium metal is 4.51g/cm3 at 25C. what mass of titanium displaces 125.0ml of water at 25c.
Problem- What mass of silver can be deposited from a cell if a 4.0 amp current is run through a silver (I) sulfate solution for 8 minutes?
what is the chemical reaction that takes place when you add calcium bromide with hg elemental mercury at 700 degree
If the boiling point of benzene is 81 degrees Celsius. Explain what is the vapor pressure of benzene at this temperature
A solution containing 100g of an unknown substance and 900g of water. The solution has a Freezing Point of -3.33*C. What is the molar mass of the substance?
A 2.154-g sample of HgO produces 125 mL of oxygen collected over water at 24 degrees C and an atmospheric pressure of 763 mm Hg. Calculate the STP molar volume for oxygen.
Many household bleaching solutions are essentially solutions of sodium hypochlorite, NaOCl. Calculate the sample weight of liquid bleach containg 5.0% by weight of NaOCl that would oxidize enough I^- to consume 0.80 mL of 0.15 M sodium thiosulfate..
Write the expression for the equilibrium constant, Kb, for methylamine also compute the molar concentration of OH- in the 50.0 mL sample of the CH 3 NH 2 solution.
Chemicals available for crystallization: ethyl ether, 95% ethanol, methanol, isopropyl alcohol, aceton, hexane, toluene and methylene chloride.
determine the molarity of a solution prepared by dissolving 45.0g of CH3OH in sufficient water to make 725mL.
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