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Which of the following factors does not affect the velocity of an enzyme catalyzed reaction?
a) enzyme concentration
b) substrate concentration
c) temperature
d) pH
e) no correct response
f) more than one correct response
A buffer is made with 25mL of 1.0 M HC2H3O2 and 25mL of 1.0 M NaC2H3O2. Calculate the theoretical pH. I know the pH is 4.74.
if 50.00ml of Ba(OH)2 solution is mixed with 30ml of HBr solution, what is the pH of the resulting solution. (0.1385 M Ba(OH)2 and 0.2050 M HBr).
Typically, gasohol is a mixture of 90% octane H8C18 and 10% ethanol C2H4OH. Determine the energy output of 1 gram of gasohol using the following two pieces of information
95.0mL of rm H_2O is initially at room temperature (22.0rm{} ^{circ}C). A chilled steel rod at 2.0rm ^{circ}C is placed in the water. If the final temperature of the system is 21.4^{circ}C.
Calculate the number of grams of NaOH per 100ml to give a pH8.0 solution if pure water at pH7.0 is used in the experiment
Synthetic chemists often take IR and NMR spectra of crude reaction products, before further purification, looking for evidence that the reaction had afforded the expected product.
It required 16ml of a sodium hydroxide solution titrated against a standard solution of 0.79g of potassium hydrogen phthalate in water to reach equivalence point. What is the molarity of the sodium hydroxide?
If 12.5 g of sucrose is added to 225 g of coffee by how much will the boiling point change upon adding the sugar? Assume the Bp of coffee is the same as pour water.m.
The pressure inside a hydrogen-filled container was 2.10 atm at 21 C. What would the pressure be if the container was heated to 94 C?
What is the density of a block of unknown material with a mass of 18.63-g if the dimensions are.
Calculate the concentrations of all species in a 1.01 M Na2SO3 (sodium sulfite) solution
A buffer is composed of 0.400 mol H2PO4 and 0.400 mol HPO4 diluted with water to a volume of 1.0 L. The pH of the buffer is 7.210. How many moles of HCL must be added to decrease the pH to 6.210? The answer is .327 mol. Can you please explain how ..
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