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What does it this mean according to the amount of pyrene and TiO2 added , the surface coverage (mol/g) could be caculated so if i have pyrene/TiO2= 50mg how can i caculate the surface coverage? water 50ml. it is sufrace coverage= 2x10^-5 mol/g
the concentration fo certain sodium hydroxide solution was determined phthalateabbreviated as khp. khp is an acid with
A 0.1276 g sample of a monoprotic acid (molar mass=1.10 x 10^2) was dissolved in 25 mL of water and titrated with 0.0633 M NaOH. After 10 mL of base had been added, the pH was determined to be 5.87. What is the Ka for the acid
Two balloons are kept at room temperature and pressure, one holding Br2 gas, and one holding He gas. Each balloon is occupying 1.0 L at 273 K and 1 atm of pressure. If R = 0.0821 L*atm/mol*K, what is the:
Determine the value of the equilibrium constant for each of the following reactions. Each reaction is the sum of simpler reactions.
What is the concentration of glucose in the original sample? In moles/liter? And in mg%?
A 6.52 g mass of a metal was heated to 103.88°C and then plunged into 100.0 g of water at 24.73°C. The temperature of the resulting mixture became 28.28°C.
determine if a redox reaction would occur if you were to mix them in a single solution. For those pairs of substances that would not react, calculate the EOCELL of the unfavored reaction between the two substances.
If a discharged electron is moving at 6.50 x 107 m/s, what is the wavelength of light that caused the electron to be removed? The answer is 0.104nm, but I don't know how to get it. I tried wavelength = h/mv but I get .0112nm
The experimentally measured density under the same conditions is 3.10 g/L. Account for the discrepancy between your calculated value and the experimental result.
calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400.0g of H2O
A stainless steel spoon weighs 25.2 g and is at a temperature of 18.5 oC. It is immersed in 81.7 mL of hot coffee (T = 84.0 oC) in a Thermos flask.
A pure titanium cube has an edge length of 2.71in How many titanium atoms does it contain? Titanium has a density of 4.50 g/cm^3
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