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By how much must an enzyme reduce the activation energy of a reaction at 37°C in order for the reaction to occur 100 times faster than in the absence of the enzyme?
the molar mass of corn oil is 890gmole. how many moles and how many grams of sodium hydroxide are required to react
When 11.2 g of an unknown, non-volatile, non-electrolyte, X was dissolved in 100. g of water, the vapor pressure of the solvent decreased from 23.8 torr to 23.6 torr at 298 K. Calculate the molar mass of the solute, X.
A hydrogen atom with its electron in the n=3 energy level absorbs light with a wavelength of 1879 nm. the final energy level of the electron is
2.10 L of a buffer solution that is 0.360 M in NH3 and 0.430 M in NH4Cl are diluted to 4.30 L with distilled water. What is the pH of the buffer? Kb of NH3 = 1.8 10-5.
The water temperature rose from 22.50ºC to 23.17ºC. What is the specific heat of the lead pellet? (The specific heat of water is 4.184 J/gºC, and the density of water is 1.00 g/mL.)
What happens to the average kinetic energy of the particles in a sample of matter as the the temperature of the sample is increased
How many mL of 36 % (g/g) HCl should be diluted to 1.0 L to make a 6.0 M HCl solution? The density of 36% HCl is 1.18 g/mL.
Which will lead to the smallest increase in the phosphorylation rate? - Which will lead to the largest increase in the phosphorylation rate in the cell
What makes "water with electrolytes" distinct from other forms of water?
in standardizing a solution what would happen if instead of putting hcl solution into a buret and standardized naoh
which three elements in the 4th period have exactly three unpaired electrons in their ground state
Initially there is 3.50L vesssel at 200C 0.544 mol N2, 0.623 mol H2, and 1.55X10^-4 mol NH3. If Kc= 5.5X10^-4 and N2(g)+3H2(g)-->2NH3(g). Deteremine if the system is at equilibrium
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