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How is the rate of enzyme-catalyzed conversion affected by the acidity (pH) of the solution? Explain!
Lemon juice has a pH of 2.5. assuming that the acidity of lemon juice is due solely to citric acid, that citric acid is a monoproctic acid, and that the density of lemon juice is 1.0 g/ml, then the citric acid concentration calculates to 0.5% by mass..
Glucose makes up about 0.10\% by mass of human blood. Calculate the concentration in ppm. Calculate the molality. What further information would you need to determine the molarity of the solution
How can the presense of the intramolecular hydrogen bonding in the single-deprotonated maleic acid lead to differences in the acid-dissociation constant when compared to fumaric acid
What is the net ionic equation of the reaction of FeCl2 with NoOH ? Express your answer as a chemical equation.
Water is present in air at 122 deg F and a total pressure of 14.696 psi in an amount such that the relative humidity is 50%. Water is removed by
sulfur dioxide was allowed to effuse through a small opening under constant pressure conditions. It required 179 s for 1.00 L of this gas to effuse. Calculate the effusion time of arsine (AsH3) under identical experimental conditions
A Ni(II) coordination compound with an octahedral arrangement of ligands has been synthesized containing only water and ammonia as ligands and chloride as counterions. From the following data, determine the exact formula of this compound.
describe an experiment using only hot and cold water that would allow you to verify that the heat capacity of your coffee-cup calorimeter
A lead-acid battery uses a redox reaction in which lead(0) and lead(IV) are both converted to lead(II). This reaction is facilitated by the presence of sulfuric acid, H2SO4, as shown by the reaction Pb + PbO2 + 2H2SO4 ---> 2PbSO4 + 2H2O
What is the change in internal energy (in J) of a system that absorbs 6.03 kJ of heat from its surroundings and has 4.70 kcal of work done on it? 1 kcal = 4.184 kJ
What volume would be occupied by 100 g of oxygen gas at a pressure of 1.50 atm and a temperature for 25° c?
If no heat is lost to the surroundings, what will be the final temperature of the mixture?
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