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An accident to the head can effect the ability of a person toventilate [ breathe in and out], and so can certain drugs. What would happen to the partial pressures of oxygen and carbon dioxidein the blood if a person cannot properly ventilate?
Draw a diagram showing the hydrogen bonding of an ammonia molecule with two other ammonia molecules. (Draw complete Lewis structures.
The heat of fusion of ice is 6.00 kJ/mol. Find the number of photons of wavelength = 5.63×10^-6m that must be absorbed to melt 3.30g of ice.
What are q and w (in kJ) for the reaction of 53.0 g of Na(s) and 48.0 g of Cl2(g) to produce NaCl(s) at 1 atm and 298K
What is the density (in grams per liter) of a gas mixture that contains 26.0 % F_2 and 74.0 % He by volume at 743 mm Hg and 28.5 C?
a solution was prepared by mixing 50.00 ml of 0.190 m hno3 and 124.00 ml of 0.150 m hno3. calculate the molarity of the
Why is it advisable to run a mixed melting point determination on samples of two different compositions before concluding that the two compounds are identical
What is the pH of Na3PO4. While this is a triprotic species, you may ignore two of the Ka's and concentrate on the single Ka that is appropriate for this problem.
What is the pH of a 0.125 M solution of the weak base B if (delta) H= -28.0 kj and (delta) S = -175 J/K for the following equilibrium reaction at 25 degrees C. B(aq) + H20 (l) BH+ (aq) + OH- (aq)
Why do you suppose that the fewer resonance structures for the carboxylate are more effective at increasing the acidity of a carboxylic acid than those of the conjugate base of 2-naphthol
A two-component mixture is analyzed by gas chromatography with flame ionization detection. compound x has a retention time of tr= 11.53 min with N= 16,520 theoretical plates
Write down the electron configuration of the B+ ion using the noble gas core notation and What you will expect for the molecular formula, C7H6O2( Benzoic acid) if Determination of The molar mass of benzoic acid
A NaCl solution contains 20.0% NaCl by mass and has a density of 1.15 g/mL. The molarity of the solution is: hint assume 1000.g of this solution)
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