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The pH of a certain solution is 4.5. What is the concentration of H+(aq) ions in the solution?
A) 3.16 x 10^-5 MB) 3.16 x 10^4 MC) 4.5 MD) 3.16 x 10^-10 ME) 1.9 x 10^19 M
The solubility of N2 in blood at 37°C and at a partial pressure of 0.80 atm is 5.6 10-4 mol/L. A deep-sea diver breathes compressed air with the partial pressure of N2 equal to 3.6 atm.
Important information about Organic molecules, What is meant by a molecules "handedness"? Can all organic molecules exhibit this property? What makes such a property possible?
Do not delete any of the atoms or bonds in the ring or directly attached to the ring with the Erase button, and do not move atoms or groups directly attached to the ring by dragging them.
How much of the drug substance has to be used (calculate)? B) How much NaCl do you need to add to hace an isotonic preparation?
Arrange the following reactions according to increasing change of entropy values. A. CH4(g) + H2O (g) = CO(g) + 3H2(g) B. C(s) + O2(g) = CO2 (g) C. H2O2(liquid) = H2O(liquid) + 1/2 O2 (g)
When 2-bromopropane reacts with ethoxide ion, two products are formed; one is the product of Sn2 substitution and the other is the product of E2 elimination.
mixture of 2-amino-propanoic has a specific rotatio of -5.6. What is the percent composition of the mixture of the specific rotation for the S enantiomer is +14.5
skiers and group engaged in outdoor activities in a frosty climate can access portable hot packs. mixture of powdered
What will happen to the retention time if the temperature of the column is increased. Calculate the following peak areas from your GC chromatogram.
boiling point of liquid is the temp at which its vapor equals----- 1 mm Hg--760 mmHg or the pressure above the liquid
determine the percent yield for the reaction between 28.1g of sb4o6 and excess c if 17.3 of sb is recovered along with
Suppose that for the precipitation of the stock solution of borzac, the solid borax reagent is contaminated with a water-souble substance that does not eact with HCl.
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