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Chlorine has an average atomic mass of 35.453 amu. The main isotopes of chlorine are 35Cl which has an atomic mass of 34.968 amu and 37Cl, which has an atomic mass of 36.956amu. Given this, what is the percent abundance of each isotope in natural chlorine?
Methyl alcohol (CH3OH) has a density of 0.793 kg/L. What volume of it is needed to add to water to make 5 liters of 0.250 M solution?
If 1.02 g KHP (molar mass = 204.2 g/mol) is titrated with 28.34 mL of NaOH, what is the concentration of NaOH?
Iodine-131 is a radioactive isotope. After 9.00 days, 46.0% of a sample of 131I remains. What is the half-life of 131I
Use the van der Waals equation of state to plot the compressibility factor, Z, against P for methane at 180K and 250K. Hint: calculate Z as a function of V/n and P as a function of V/n, and then plot Z Vs. P.
The reaction depicted in this reaction energy diagram can best be described as (a) a slow exothermic reaction (b) a fast exothermic reaction (c) s slow endothermic reaction (d) a fast endothermic reaction
How would you create a 100ml solution with both 2.6M NaCl & 0.5M EDTA if your stock solutions are 5M NaCl & 2M EDTA? How much DH2O would you need to add
A cylinder with a moveable piston contains 0.84 mol of gas and has a volume of 328 mL. What will its volume be if an additional 0.27 mol of gas is added to the cylinder? (Assume constant temperature and pressure.)
Nitrogen reacts with a metal to form a compound in which there are three atoms of the metal for each atom of nitrogen. If 1.486 g of the metal reacts with 1.000 g of nitrogen
Describe how Concanavalin A Sepaharose could be used to isolate Protein C from the mixture. Specify how any elution steps might be carried out. Be sure to cite the reference you used to determine how "ConA Sepharose" works.
a certain liquid has dH(vap)=26.0kJ/mol. calculate the q,w,dH and dU when 0.50 mol is vaporized at 250K and 750torr
Separation scheme for isolating benzoic acid, Could you please show me a separation scheme for isolating benzoic acid from a reaction mixture if mixing a Grignard
In one experiment, 11.5 g of NO formed when 112.4 g of each reactant was used. What is the highest percent yield of N2 that can be expected?
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