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Calculate the mechanism behind the increase in light fastness of titanium dioxie pigment upon coating with phosphate/aluminum phosphate?
Determine the mass of sodium bicarbonate that will react exactly with 20.00mL of 0.25M nitric acid, Based on the equation.
Utilize remainder theorem to determine remainder when f(x) is divided by. Then utilize factor theorem to find whether is factor of f(x). f(x) = x^5 - 3x^4 + 5x^2 -21x +18.
Determine the mass percent of CuCl2 *2H2O in the original sample? A 2.634 g sample of impure CuCl2 * 2H2O was heated to drive off the water of hydration. The mass after heating was 2.125 g.
Determine maximum number of real zeros. Utilize Descartes's rule of signs to find how many positive and how many negative zeros function has.
Write R in lowest term P(x)/q(x) and determine real zeros of a numerator. Then find behavior on graph of R. Plot every x-intercept and indicate behavior on graph.
Determine the maximum wavelength of light capable of removing an electron for a hydrogen atom from the energy state characterized by the following.
A sample which is having of calcium hydroxide was dissolved in the 250.0 ml of water. It was found that 14.80 mL of this solution was required to reach the stoichiometric point in a titration of 28
A sample which is having 16.20-mL of sodium hydroxide solution is titrated to the stoichiometric point with the 18.60 mL of a 0.262 M solution of HNO3. Find out the molarity of the sample of sodium
At STP a balloon filled with 1.00 mole of helium gas is heated to 298 K at constant pressure. Determine the change in internal energy. Where CHe = 5.20 J/g oC
When 3.00 g of propane, C3H8, is burned in a bomb calorimeter whose heat capacity is 32.7 kJ/K, the temperature increases by 4.62 Kelvin's? Propane is used as a home fuel in some areas. &nb
Determine what approximate ratio of acid and salt is needed, to make the pH 8.8 of a boric acid-sodium borate buffer solution , where pKa of borate acid is 9.24
The line passes through points (1, 2) and (4, 1). Determine area of triangle bounded by the line and coordinate axis.
What would be the maximum buffer capacity of this buffer at what pH would bmax occur when the pKa for boric acid is 6.10 Assuming that the total bicarbonate buffer concentration in normal blood
A sample which is having 1.80-g of the mixture is dissolved in water, and an excess of NaOH is added, forming a precipitate of Al(OH)3. A mixture contains only NaCl and Al2(SO4)3.
Describe what quantity of energy is released to the surroundings in joules, if 2.00 mL of mercury is cooled from the 23.0°C to -38.8°C and then frozen to a solid? The freezing point of mercu
Determine the numbers of grams of Cadmium are deposited from an aqueous solution of Cadmium Sulfate when the electric current of 1.51 Amperes flows for 156 minutes?
Determine the disintegration rate of the bones during the "dating" which is based on the Carbon 14? State this activity in disintegrations per minute per gram.
Explain in brief how are benzhydrol, biphenyl and benzophenone order in terms of increasing polarity (lowest polar to highest polar)?
Every acre of corn needs 2 hrs of labor, while each acre of oats needs 1hr of labor. How must land be divided between corn and oats to yield maximum profit?
Determine the number of grams of excess reagent remaining when 17.3 grams of H2SO4 is reacted with the 37.3 grams of NaOH in the reaction: H2SO4 + 2 NaOH---> 2H2O + Na2SO4
The standard heat of reaction, for the reaction as written, is-114.1 kJ; it is exothermic. The reaction is 2 NO(g) +O2 (g) => 2 NO2 (g) Nitrogen monoxide reacts with the oxygen gas to giv
Briefly describe how you could use the TLC to decide when the reaction was complete. Suppose you prepared benzhydrol by the reduction of benzophenone with the sodium borohydride.
The optic nerve requires a minimum of 2.0 * 10^-17 J of energy to trigger a series of impulses that eventually reach the brain. The human eye is a complex sensing device for the visible light.
Calculate the enthalpy of reaction per mole of CsOH? Suppose the densities of the solutions are all 1.00 g/mL and the specific heats of the solutions are 4.2 J/g*K.