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Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products. Benzoic acid dissociates in water: C6H5COOH<->C6H5COO- + H+ The pKa of this reaction is 4.2. In a 0.75 M solution of benzoic acid, what percentage of the molecules are ionized? In what unit?
Write the overall reaction, showing how much ATP (Adenosine tri phosphate) can be produced per pentose used also write an equation for the generation of NADPH using ribose as a sole source of carbon?
What is the principal quantum number of the valence electrons in an atom lead? EXPLAIN how you got your answer.
A buffer that contains 0.347 M of a base, B and 0.483 M of its conjugate acid BH+, has a pH of 8.08. What is the pH after 0.00713 mol of HCl are added to 0.442 L of the solution
how many ml of concentration sulfuric acid, 94%(g/100g solution), density 1.831 g/cm3 are required to prepare 1L of 0.100 M solution.
A student starts with 55.0701 grams of iron (lll) nitrate nonahydrate, Fe(NO3)^3 * 9 H20 and dissolves this in 250 mL of water. This solution is diluted to the mark on a 500 mL volumetric flask.
How many moles of sulfate ions are there in a 0.20 L solution of 0.080 molar aluminum sulfate
If 1.500 g of solute having molar mass of 125.0 g were dissolved in 35 g of camphor, what would be the resulting freezing point of the solution?
Gasoline is produced from crude oil,a nonrenewable resource. Ethanol is mixed with gasoline to produced a fuel called gasohol. Calculate the mass (in grams) of water produced when 66.89 g of ethanol is burned in 57.71 g of oxygen.
Using the value of 7.3 kcal/mole for ATP, how many kcal are conserved as ATP from one mole of glucose in each of the following 1.glycolysis
Phosgene, COCl2, is formed from Cl2 and CO at high temperatures. The mechanism is thought to be: What is the rate law predicted for this mechanism
Calculate the resulting discharge temperature and the required horsepower for one stage compression of the following gas properties. Construct a plot of such discharge temperature and required horsepower versus one stage compression ratios of 2, 3..
a solution contains 29 g of sucrose c12h22o11 a nonelectrolyte dissolved in 929 g of water. what is the boiling-point
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